Information storage device, removable device, developer container,and image forming apparatus

TECHNICAL FIELD

0001The present invention relates to an image forming apparatus such as a copying machine, a printer, a facsimile, or a multi-function peripheral (MFP), a removable device and a developer container that are removably installed therein, and an information storage device installed therein.

BACKGROUND ART

0002Conventionally, in an image forming apparatus such as a copying machine, a technique of removably installing a removable device such as a developer container (a toner bottle, a toner storage container, or an ink cartridge) or a process cartridge on an image forming apparatus body has been usually used (for example, Patent Literature 1: Japanese Patent Application Laid-open No. <patcit id="pcit0001" dnum="JP2009069417A"><text>2009-69417</text></patcit>, Patent Literature 2: Japanese Patent Application Laid-open No. <patcit id="pcit0002" dnum="JP2006209060A"><text>2006-209060</text></patcit>, and Patent Literature 3: Japanese Patent Application Laid-open No. <patcit id="pcit0003" dnum="JP2002196629A"><text>2002-196629</text></patcit>).

0003In the removable device, an information storage device (an information recording unit or a non-volatile memory) such as an ID chip storing information to be exchanged with the image forming apparatus body is installed. In a state in which the removable device is set to the image forming apparatus body, information (for example, information such as manufacturing year, month, and date of the removable device, a manufacturing lot number, or a color of toner, or a kind of toner) stored in the information storage device is transmitted to a control unit of the image forming apparatus body, or information (information such as a use history of the image forming apparatus) is transmitted from the image forming apparatus body to the information storage device, so that fulfilling quality control of the image forming apparatus body and the removable device is performed.

0004Patent Literature 1 discloses a contact-type information storage device (an information recording unit). Specifically, in the contact-type information storage device (an ID chip), when the removable device (a toner storage container) is set to the image forming apparatus body, a metal pad (a terminal) comes in contact with a body side terminal of a connector installed in the image forming apparatus body. As a result, information can be exchanged between the information storage device of the removable device and the control unit (the body side information recording unit) of the image forming apparatus.

0005Further, a feeding opening for allowing the stored toner to flow out to the outside is installed in the developer container. The opening needs remain closed until it is loaded onto a developing device so as to prevent the toner from being scattered or leaking.

0006As a configuration for achieving the above desire, there has been suggested a configuration in which a shutter for opening/closing the opening installed in the developer container is installed. Further, as a configuration of the shutter, there has been suggested a configuration in which a flat plate-like shutter that is movable in a direction traversing the toner and an outlet is installed (For example, Patent Literature 4: Japanese Patent Application Laid-open No. <patcit id="pcit0004" dnum="JP2010066638A"><text>2010-066638</text></patcit>).

0007However, the conventional techniques described above have the following problems.

0008As a first problem, the conventional contact-type information storage device may electrically get damaged since an electric circuit of the information storage device is not sufficiently earthed and so becomes an electrically floating state when the removable device is attached to or removed from the device body.

0009Advantageously, there is provided an information storage device, a removable device, a developer container, and an image forming apparatus in which electrical damage is difficult to occur in the information storage device even when the contact-type information storage device is installed in the removable device removably installed in the image forming apparatus body.

0010As a second problem, in the conventional contact-type information storage device, there may occur a problem in that contact sections thereof are misaligned (a contact failure) due to wrong positioning of the terminal (metal pad) installed in the information storage device and the terminal of the image forming apparatus body. Particularly, when the terminal of the information storage device is small, the problem becomes important.

0011Advantageously, there is provided a removable device, a developer container, and an image forming apparatus in which a contact failure caused by a positioning failure with the body side terminal of the connector of the image forming apparatus body is difficult to occur even when the contact-type information storage device is installed in the removable device removably installed in the image forming apparatus body.

0012A third problem is as follows. In recent years, toner having a small particle diameter has been used so as to improve the resolution. Improving a filter function so as to cope with using the toner may increase the material or processing cost. That is, when a foamable material is used, it is necessary to prescribe mesh fineness that does not let the toner through, a so-called foaming degree, but as mesh fineness increases, flexibility tends to decrease. This tendency may be difficult to go along with movement of the shutter, and a sealing characteristic may get worse.

0013Advantageously, there is provided a developer storage container and an image forming apparatus which have a configuration capable of reliably preventing the toner from leaking from the developer storage container that is replaced by an attaching/detaching operation at a low cost.

0014<patcit id="pcit0005" dnum="EP0997297A1"><text>EP 0 997 297 A1</text></patcit> relates to an ink-jet recorder and ink cartridge. An ink supply needle is provided on one side of the path where a carriage reciprocatingly moves. A circuit board is attached to the wall near the side where an ink supply orifice of an ink cartridge is provided. Contacts for connection to external control means are formed on the exposed surface of the circuit board. Therefore, even if a clearance is present between the carriage and the cartridge, the movement path is restricted by the ink supply needle and the ink supply orifice, and the contacts are connected to external control means in a prescribed order. As a result, the data in semiconductor storage means is prevented from being deleted because of application of signals in a wrong careless order.

0015<patcit id="pcit0006" dnum="US5805219A"><text>US 5,805,219 A</text></patcit> relates to an apparatus capable of safely recording an information when removing a recording medium. An apparatus is capable of using a detachable recording medium. The apparatus has an electrical contact point that is electrically connected with the recording medium for a predetermined length in the recording medium insertion and ejection directions. An eject mechanism is incorporated to enable eject of the recording medium. A first detection device detects an ejecting movement of the recording medium at a first time. The first time is earlier than a break time when the electrical contact points is electrically disconnected from the recording medium. A second detection device detects the ejecting movement of the recording medium at a second time. The second time is earlier than the break time and later than the first time. The apparatus is capable of accomplishing necessary safety measures when the recording medium is ejected during data recording.

0016<patcit id="pcit0007" dnum="US20100008693A1"><text>US 2010/0008693 A1</text></patcit> relates to a toner cartridge and image forming apparatus using the same. A toner cartridge includes: a toner container for containing a toner, the toner container being removably mounted in an image forming apparatus; and a storage section for electronically storing specific information held by the toner container, the storage section being electrically connected to a to-be-connected portion of the image forming apparatus when the toner container is mounted in the image forming apparatus, the storage section comprising: a board assembly including a board on which a storage element for storing the specific information held by the toner container as electronic information is mounted; a housing member for holding the board assembly; and a covering member for detachably integrating the board assembly and the housing member, the storage section being attachable to and removable from the toner container.

0017<patcit id="pcit0008" dnum="EP2037327A2"><text>EP 2 037 327 A2</text></patcit> relates to a developing device memory unit thereof, and image forming apparatus. A developing device to prevent damage of a memory unit and poor connection between terminals of the memory unit and a main body of an image forming apparatus, by improving a mounting position of the memory unit. The developing device is removably mounted to a main body of the image forming apparatus. The memory unit includes terminals exposed through a rear side of the developing device. The memory unit is disposed closer to a power reception unit formed at one side of the developing device than to a driving force reception unit formed at an other side of the developing device.

0018<patcit id="pcit0009" dnum="JP2010033991A"><text>JP 2010-033991 A</text></patcit> relates to electric equipment. When a guide pin of the electronic equipment enters a connection hole formed in a circuit board, a spring part is pushed by an inner wall of the connection hole and elastically deforms toward the inside of the guide pin to fit into the connection hole, thereby electrically connecting the guide pin with a ground circuit of the circuit board to ground the electronic equipment. The electronic equipment is firmly fixed to a chassis by fitting the spring part into the connection hole.

0019<patcit id="pcit0010" dnum="JPH03057074U"><text>JP H 03-057074 U</text></patcit> relates to an earthed board guide structure.

0020<patcit id="pcit0011" dnum="JP2005007893A"><text>JP 2005-007893 A</text></patcit> relates to a terminal of circuit board. The circuit board has an approximately rectangular outer shape, and an approximately circular test terminal is provided on the upper half part of a counter surface. A plurality of terminals each of which having an approximately rectangular shape are provided in two rows, i.e., an upper row and a lower row, on the lower half part of the counter surface of the circuit board. In the upper row, an I/O terminal for data input/output, a power supply terminal for supplying power, and a chip select terminal for inputting a chip select signal CS are disposed. In the lower row on the counter surface of the circuit board, a ground terminal, a read/write terminal for inputting a read/write control signal W/R, a clock terminal for inputting a clock signal CLK, and a ground terminal are provided.

0021<patcit id="pcit0012" dnum="JP2007199505A"><text>JP 2007-199505 A</text></patcit> relates to a developer supply device. The toner cartridge detachably attached to the body of a copying machine includes a toner storage container storing toner; a toner discharging part formed in the toner storage container and allowing toner to be discharged through it; an IC substrate holding bracket fixed to the toner storage container 61; an IC substrate attached to the IC substrate holding bracket, and allowing an IC to be mounted thereon; and positioning bosses disposed on the IC substrate holding bracket, used to position the IC substrate and form a gap between the body of the copying machine and the IC substrate by engaging with the body of the copying machine.

0022<patcit id="pcit0013" dnum="JPH0403784U"><text>JP H 04-03784 U</text></patcit> relates to an earthed board guide structure.

SUMMARY OF THE INVENTION

0023It is an object of the present invention to provide an improved and useful information storage device in which the above-mentioned problems are eliminated.

0024In order to achieve the above-mentioned object, there is provided a information storage device according to claim 1.

0025Advantageous embodiments are defined by the dependent claims.

0026Advantageously, a "process cartridge" is defined as a removable device that is configured such that at least one of a charging unit for charging an image carrier, a developing unit (a developing device) for developing a latent image formed on the image carrier, and a cleaning unit for cleaning the surface of the image carrier is integrally formed with the image carrier and that is installed removably on the image forming apparatus body.

0027Advantageously, a "nearly rectangular metallic plate" is defined to include a nearly rectangular one as well as a rectangular one. Thus, one in which all or part of an angular section of the rectangular metallic plate is chamfered and an R-shaped one are also included in the "nearly rectangular metallic plate."

0028Advantageously, there is provided an information storage device, a removable device, a developer container, and an image forming apparatus in which electrical damage is difficult to occur in the information storage device even when the contact-type information storage device is installed in the removable device removably installed on the image forming apparatus body since an earth terminal engaged with a body side earth terminal formed in a protruding section of the image forming apparatus body is formed in a hole formed in a substrate of the information storage device.

0029Advantageously, the contact-type information storage device is held on a holding section to be movable on a virtual plane that is substantially orthogonal to a movement direction in which a terminal approaches and comes in contact with a body side terminal. Thus, the present invention can provide a removable device, a developer container, and an image forming apparatus in which a contact failure caused by a positioning failure with the body side terminal of the connector of the image forming apparatus body is difficult to occur even when the contact-type information storage device is installed in the removable device removably installed in the image forming apparatus body.

0030Advantageously, by causing riding-up when hitting against a rib disposed on a circumferential edge of an ejecting opening, adhesion can be secured.

0031Thus, by using a shutter that is an existing component used for opening/closing the ejecting opening, a toner leak from the ejecting opening can be reliably prevented without adding a special structure.

BRIEF DESCRIPTION OF DRAWINGS

0032<ul id="ul0001" list-style="none" compact="compact"><li><figref idref="f0001">Fig. 1</figref> is an overall configuration view illustrating an image forming apparatus according to an embodiment;</li><li><figref idref="f0002">Fig. 2</figref> is a cross sectional view illustrating an image forming unit;</li><li><figref idref="f0002">Fig. 3</figref> is a schematic view illustrating a state in which a toner container is installed in a toner feeding device;</li><li><figref idref="f0003">Fig. 4</figref> is a schematic perspective view illustrating a state in which four toner containers are installed in a toner container storage unit;</li><li><figref idref="f0003">Fig. 5</figref> is a schematic perspective view illustrating a state in which one toner container is installed in a toner container storage unit;</li><li><figref idref="f0004">Fig. 6</figref> is a side view illustrating a state in which a toner container is installed in a toner container storage unit;</li><li><figref idref="f0004">Fig. 7</figref> is a cross sectional view illustrating a state in which a cap section is installed in a cap receiving section;</li><li><figref idref="f0005">Fig. 8</figref> is a perspective view illustrating a cap receiving section of a toner container storage unit;</li><li><figref idref="f0005">Fig. 9</figref> is an enlarged perspective view illustrating a neighborhood of a leading end section of a bottle receiving section;</li><li><figref idref="f0006">Fig. 10</figref> is a back view illustrating a state in which a cap section is set to a bottle receiving section in a regular toner container;</li><li><figref idref="f0007">Fig. 11</figref> is a back view illustrating a state in which a cap section is set to a bottle receiving section in a non-regular toner container;</li><li><figref idref="f0008">Fig. 12A</figref> is a back view illustrating a cap receiving section, and <figref idref="f0008">Fig. 12B</figref> is a partial enlarged view illustrating a neighborhood of a contacted groove encircled by a dotted line in a cap receiving section of <figref idref="f0008">Fig. 12A</figref>;</li><li><figref idref="f0009">Fig. 13</figref> is a perspective view illustrating a cap receiving section from obliquely below;</li><li><figref idref="f0010">Fig. 14</figref> is a perspective view illustrating a toner container from obliquely below;</li><li><figref idref="f0010">Fig. 15</figref> is a side view illustrating a toner container;</li><li><figref idref="f0011">Fig. 16</figref> is a perspective view illustrating a state in which a shutter member of a toner container closes a toner discharge opening;</li><li><figref idref="f0011">Fig. 17</figref> is a perspective view illustrating a state in which a shutter member of a toner container opens a toner discharge opening;</li><li><figref idref="f0012">Figs. 18A to 18C</figref> are schematic views illustrating an opening operation of a shutter member that is in conjunction with a mounting operation of a toner container on a toner container storage unit;</li><li><figref idref="f0013">Fig. 19</figref> is a perspective view illustrating a shutter member;</li><li><figref idref="f0013">Fig. 20</figref> is another perspective view illustrating a shutter member;</li><li><figref idref="f0014">Fig. 21</figref> is a six-plane view illustrating a holding member of an information storage device;</li><li><figref idref="f0014">Fig. 22</figref> is a cross sectional view illustrating a neighborhood of a cap section of a toner container;</li><li><figref idref="f0015">Fig. 23</figref> is a schematic cross sectional view illustrating a toner container according to a second embodiment;</li><li><figref idref="f0015">Fig. 24</figref> is a back view illustrating a cap section in the toner container of <figref idref="f0015">Fig. 23</figref>;</li><li><figref idref="f0016">Fig. 25</figref> is a perspective view illustrating a holding cover engaged with a holding member;</li><li><figref idref="f0016">Fig. 26</figref> is a three-plane view illustrating a substrate of an information storage device according to a fourth embodiment;</li><li><figref idref="f0017">Fig. 27</figref> is a perspective view illustrating an information storage device, a holding member, and a connector;</li><li><figref idref="f0017">Fig. 28</figref> is a perspective view illustrating a state in which an information storage device is engaged with a connector;</li><li><figref idref="f0018">Figs. 29A and 29B</figref> are schematic views illustrating an electric circuit of an information storage device and an electric circuit of a connector;</li><li><figref idref="f0019">Figs. 30A and 30B</figref> are front views illustrating an information storage device;</li><li><figref idref="f0019">Fig. 31</figref> is a view illustrating an information storage device in an inspection process;</li><li><figref idref="f0020">Figs. 32A and 32B</figref> are perspective views illustrating a toner container according to a fifth embodiment;</li><li><figref idref="f0021">Fig. 33</figref> is a front view illustrating a toner container in which a face plate is not installed;</li><li><figref idref="f0022">Fig. 34</figref> is a cross sectional view illustrating a toner container in which an information storage device and a face plate are installed;</li><li><figref idref="f0022">Fig. 35</figref> is a view illustrating a state in which an information storage device is being inserted into a connector;</li><li><figref idref="f0023">Figs. 36A and 36B</figref> are perspective views illustrating a toner container of another form;</li><li><figref idref="f0024">Figs. 37A to 37C</figref> are views illustrating a toner container of another form;</li><li><figref idref="f0025">Fig. 38</figref> is an exploded perspective view illustrating a toner container according to a sixth embodiment;</li><li><figref idref="f0025">Fig. 39</figref> is a cross sectional view illustrating the toner container of <figref idref="f0025">Fig. 38</figref>;</li><li><figref idref="f0026">Fig. 40</figref> is a perspective view illustrating an image forming apparatus according to an seventh embodiment;</li><li><figref idref="f0027">Figs. 41A and 41B</figref> illustrate toner cartridges installed in the image forming apparatus of <figref idref="f0026">Fig. 40</figref>, <figref idref="f0027">Fig. 41A</figref> is a cross sectional view, and <figref idref="f0027">Fig. 41B</figref> is a bottom view;</li><li><figref idref="f0028">Fig. 42</figref> is a perspective view illustrating an image forming apparatus according to an eighth embodiment;</li><li><figref idref="f0029">Fig. 43</figref> is a schematic view illustrating a state in which a connector is connected to an information storage device in the image forming apparatus of <figref idref="f0028">Fig. 42</figref>;</li><li><figref idref="f0030">Fig. 44</figref> is a perspective view illustrating an ink cartridge according a ninth embodiment;</li><li><figref idref="f0030">Fig. 45</figref> is a top view illustrating an image forming apparatus in which the ink cartridge of <figref idref="f0030">Fig. 44</figref> is installed;</li><li><figref idref="f0031">Fig. 46</figref> is a perspective view illustrating a toner container according to a tenth embodiment;</li><li><figref idref="f0032">Fig. 47</figref> is an enlarged perspective view illustrating configurations of an information storage device and a holding member according to the tenth embodiment;</li><li><figref idref="f0032">Fig. 48</figref> is an exploded perspective view illustrating the configurations of the information storage device and the holding member according to the tenth embodiment;</li><li><figref idref="f0033">Fig. 49</figref> is an enlarged perspective view illustrating a fixing state between the information storage device and the holding member according to the tenth embodiment;</li><li><figref idref="f0033">Fig. 50</figref> is an enlarged perspective view illustrating a fixing state between an information storage device and a holding member according to a eleventh embodiment;</li><li><figref idref="f0034">Fig. 51</figref> is an enlarged perspective view illustrating configurations of the information storage device and the holding member according to the eleventh embodiment;</li><li><figref idref="f0034">Fig. 52</figref> an enlarged perspective view illustrating a fixing state between an information storage device and a holding member according to a twelfth embodiment;</li><li><figref idref="f0035">Fig. 53</figref> is an enlarged perspective view illustrating configurations of the information storage device and the holding member according to the twelfth embodiment;</li><li><figref idref="f0035">Fig. 54</figref> is a cross sectional view illustrating a cap section illustrated in <figref idref="f0010">Fig. 14</figref>;</li><li><figref idref="f0036">Fig. 55</figref> is a perspective view, viewed from a bottom surface of a shutter, for explaining a configuration of a shutter used in a cap section illustrated in <figref idref="f0010">Fig. 14</figref>;</li><li><figref idref="f0037">Figs. 56A and 56B</figref> are views, corresponding to <figref idref="f0012">Fig. 18</figref>, for explaining an opening/closing state of a shutter illustrated in <figref idref="f0037">Figs. 56A and 56B</figref>;</li><li><figref idref="f0038">Figs. 57A to 57C</figref> are views for explaining a configuration of the shutter illustrated in <figref idref="f0037">Figs. 56A and 56B</figref>;</li><li><figref idref="f0039">Figs. 58A to 58C</figref> are views illustrating an opening state of the shutter illustrated in <figref idref="f0038">Figs. 57A to 57C</figref> and a cross section of the state;</li><li><figref idref="f0040">Fig. 59</figref> is a plane view for explaining a relation between a body side shutter closing mechanism and a shutter;</li><li><figref idref="f0040">Fig. 60</figref> is a plane view illustrating a state of the body side shutter closing mechanism illustrated in <figref idref="f0040">Fig. 59</figref>;</li><li><figref idref="f0041">Fig. 61</figref> is a plane view illustrating a state of the body side shutter closing mechanism that has changed from the state illustrated in <figref idref="f0040">Fig. 60</figref>;</li><li><figref idref="f0042">Figs. 62A to 62D</figref> are views for explaining a positional relation between a toner discharge opening and a shutter and a sealing state of a seal material;</li><li><figref idref="f0043">Fig. 63</figref> is a perspective view, viewed from a front right side in an insertion direction of a cap in the state in which a shutter is closed, for explaining a modification related to a configuration of a cap section according to a fourteenth embodiment;</li><li><figref idref="f0044">Fig. 64</figref> is a perspective view viewed from a front left side in an insertion direction of the cap illustrated in <figref idref="f0043">Fig. 63</figref>;</li><li><figref idref="f0044">Fig. 65</figref> is an exploded perspective view of the cap section illustrated in <figref idref="f0043">Fig. 63</figref>;</li><li><figref idref="f0045">Fig. 66</figref> is a perspective view illustrating a modification of a main part of the cap section illustrated in <figref idref="f0043">Fig. 63</figref>;</li><li><figref idref="f0046">Fig. 67</figref> is a plane view for explaining an aspect of a body side shutter closing mechanism targeting on the cap section illustrated in <figref idref="f0043">Fig. 63</figref>;</li><li><figref idref="f0047">Fig. 68</figref> is a plane view illustrating the body side shutter closing mechanism illustrated in <figref idref="f0046">Fig. 67</figref>;</li><li><figref idref="f0048">Fig. 69</figref> is a plane view illustrating a state of the body side shutter closing mechanism that has changed from the state illustrated in <figref idref="f0047">Fig. 68</figref>;</li><li><figref idref="f0049">Fig. 70</figref> is a three-plane view illustrating an alternative of the substrate illustrated in <figref idref="f0016">Fig. 26</figref>; and</li><li><figref idref="f0050">Figs. 71A to 71C</figref> are plane views illustrating further alternatives of the substrate illustrated in <figref idref="f0016">Fig. 26</figref>.</li></ul>

BEST MODE(S) FOR CARRYING OUT THE INVENTION

0033Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the drawings, the same or corresponding parts are denoted by the same reference numerals, and thus a duplicated description thereof will be appropriately simplified or omitted.

First Embodiment

0034A first embodiment of the present invention will be described in detail with reference to <figref idref="f0001 f0002 f0003 f0004 f0005 f0006 f0007 f0008 f0009 f0010 f0011 f0012 f0013 f0014">Figs. 1 to 22</figref>.

0035First, a configuration and operation of the entire image forming apparatus will be described.

0036As illustrated in <figref idref="f0001">Fig. 1</figref>, in a toner container storage unit 70 above an image forming apparatus body 100, toner containers 32Y, 32M, 32C, and 32K (developer containers) are removably (replaceably) installed as four removable devices corresponding to respective colors (yellow, magenta, cyan, and black) (also see <figref idref="f0002 f0003">Figs. 3 to 5</figref>).

0037An intermediate transfer unit 15 is disposed below the toner container storage unit 70. Image forming units 6Y, 6M, 6C, and 6K corresponding to respective colors (yellow, magenta, cyan, and black) are disposed in line to face an intermediate transfer belt 8 of the intermediate transfer unit 15.

0038Toner feeding devices 60Y, 60M, 60C, and 60K are disposed below the toner containers 32Y, 32M, 32C, and 32K as the removable devices (developer containers), respectively. The toners stored in the toner containers 32Y, 32M, 32C, and 32K are supplied (fed) to the inside of the developing devices of the image forming units 6Y, 6M, 6C, and 6K by the toner feeding devices 60Y, 60M, 60C, and 60K, respectively.

0039Referring to <figref idref="f0002">Fig. 2</figref>, the image forming unit 6Y corresponding to yellow includes a photosensitive drum 1Y, a charging unit 4Y disposed around the photosensitive drum 1Y, a developing device 5Y (a developing section), a cleaning unit 2Y, a neutralizing unit (not shown), or the like. An image forming process (a charging process, an exposure process, a developing process, a transfer process, and a cleaning process) is performed on the photosensitive drum 1Y, and so a yellow image is formed on the photosensitive drum 1Y.

0040The remaining three image forming units 6M, 6C, and 6K have almost the same configuration as the image forming unit 6Y corresponding to yellow except that colors of used toner are different. Hereinafter, a description of the remaining three image forming units 6M, 6C, and 6K will be appropriately omitted, and a description will be made in connection with the image forming unit 6Y corresponding to yellow.

0041Referring to <figref idref="f0002">Fig. 2</figref>, the photosensitive drum 1Y is rotationally driven clockwise in <figref idref="f0002">Fig. 2</figref> by a driving motor (not shown). The surface of the photosensitive drum 1Y is uniformly charged at the position of the charging unit 4Y (the charging process).

0042Thereafter, the surface of the photosensitive drum 1Y reaches an irradiation position of laser light L emitted from an exposure unit 7 (see <figref idref="f0001">Fig. 1</figref>), and an electrostatic latent image corresponding to yellow is formed by exposure scanning at this position (the exposure process).

0043Then, the surface of the photosensitive drum 1Y reaches the position facing the developing device 5Y, and the electrostatic latent image is developed at this position, so that a yellow toner image is formed (the developing process).

0044Next, the surface of the photosensitive drum 1Y reaches the position facing the intermediate transfer belt 8 and a primary transfer bias roller 9Y, and the toner image on the photosensitive drum 1Y is transferred onto the intermediate transfer belt 8 at this position (a primary transfer process). At this time, a slight amount of non-transfer toner remains on the photosensitive drum 1Y.

0045Thereafter, the surface of the photosensitive drum 1Y reaches the position facing the cleaning unit 2Y, and the non-transfer toner remaining on the photosensitive drum 1Y is mechanically collected by a cleaning blade 2a at this position (the cleaning process).

0046Finally, the surface of the photosensitive drum 1Y reaches the position facing the neutralizing unit (not shown), and residual potential on the photosensitive drum 1Y is removed at this position.

0047Thus, a series of image forming processes performed on the photosensitive drum 1Y are finished.

0048The above described image forming process is performed even in the other image forming units 6M, 6C, and 6K in the same manner as in the yellow image forming unit 6Y. That is, the laser light L based on image information is irradiated from the exposure unit 7 disposed below the image forming units onto the photosensitive drums of the image forming units 6M, 6C, and 6K. Specifically, the exposure unit 7 emits the laser light L from a light source and irradiates the laser light L onto the photosensitive drum through a plurality of optical elements while scanning the laser light L by a polygon mirror that is rotationally driven.

0049Thereafter, toner images of respective colors formed on the respective photosensitive drums through the developing process are transferred onto the intermediate transfer belt 8 in a superimposed manner. As a result, a color image is formed on the intermediate transfer belt 8.

0050Referring to <figref idref="f0001">Fig. 1</figref>, the intermediate transfer unit 15 includes the intermediate transfer belt 8, four primary transfer bias rollers 9Y, 9M, 9C, and 9K, a secondary transfer bias roller 12, a plurality of tension rollers, an intermediate transfer cleaning unit, and the like. The intermediate transfer belt 8 is stretched over and supported by a plurality of roller members and endlessly moves in a direction of an arrow in <figref idref="f0001">Fig. 1</figref> as one roller member 12 is rotationally driven.

0051The four primary transfer bias rollers 9Y, 9M, 9C, and 9K sandwich the intermediate transfer belt 8 together with the photosensitive drums 1Y, 1M, 1C, and 1K, respectively, to form primary transfer nips. A transfer bias reverse to a polarity of the toner is applied to the primary transfer bias rollers 9Y, 9M, 9C, and 9K.

0052The intermediate transfer belt 8 moves in a direction of an arrow and sequentially passes through the primary transfer nips of the primary transfer bias rollers 9Y, 9M, 9C, and 9K. The toner images of respective colors on the photosensitive drums 1Y, 1M, 1C, and 1K are primary-transferred onto the intermediate transfer belt 8 in a superimposed manner.

0053Thereafter, the intermediate transfer belt 8 onto which the toner images of respective colors are transferred in a superimposed manner reaches the position facing a secondary transfer roller 19. At this position, the secondary transfer bias roller 12 sandwiches the intermediate transfer belt 8 together with the secondary transfer roller 19 to form a secondary transfer nip. The toner images of four colors formed on the intermediate transfer belt 8 are transferred onto a recording medium P such as a transfer sheet conveyed to the position of the secondary transfer nip. At this time, the non-transfer toner that has not been transferred onto the recording medium P remains on the intermediate transfer belt 8.

0054Thereafter, the intermediate transfer belt 8 reaches the position of the intermediate transfer cleaning unit (not shown). At this position, the non-transfer toner on the intermediate transfer belt 8 is collected.

0055As a result, a series of transfer processes performed on the intermediate transfer belt 8 are finished.

0056The recording medium P conveyed to the position of the secondary transfer nip is conveyed through a paper feeding roller 27, a pair of resist rollers 28, and the like from a paper feeding unit 26 disposed below the apparatus body 100.

0057Specifically, a plurality of recording media P such as transfer sheets are stored in a superimposed manner in the paper feeding unit 26. If the paper feeding roller 27 is rotationally driven counterclockwise in <figref idref="f0001">Fig. 1</figref>, the top recording medium P is fed toward between the rollers of the pair of resist rollers 28.

0058The recording medium P fed to the pair of resist rollers 28 stops at the position of a roller nip of the pair of resist rollers 28 that has stopped rotational driving. In synchronization with timing of the color image on the intermediate transfer belt 8, the pair of resist rollers 28 is rotationally driven, and the recording medium P is conveyed toward the secondary transfer nip. Thus, a desired color image is transferred onto the recording medium P.

0059Thereafter, the recording medium P onto which the color image has been transferred at the position of the secondary transfer nip is conveyed to the position of a fixing device 20. At this position, the color image transferred onto the surface is fixed to the recording medium P by heat and pressure by a fixing belt and a pressing roller.

0060Thereafter, the recording medium P passes through between rollers of a pair of ejecting rollers 29 and then is ejected to the outside of the apparatus. A recording medium P ejected to the outside of the apparatus by the pair of ejecting rollers 29 is sequentially stacked on a stack unit 30 as an output image.

0061Thus, in the image forming apparatus, a series of image forming processes are finished.

0062Next, a configuration and operation of the developing device in the image forming unit will be described in further detail with reference to <figref idref="f0002">Fig. 2</figref>.

0063The developing device 5Y includes a developing roller 51Y facing the photosensitive drum 1Y, a doctor blade 52Y facing the developing roller 51Y, two conveying screws disposed in developer storage units 53Y and 54Y, a density detecting sensor 56Y for detecting the density of the toner contained in the developer, and the like. The developing roller 51Y is configured with a magnet fixedly disposed to the inside thereof, a sleeve rotating around the magnet, and the like. A two-component developer G composed of a carrier and a toner is stored in the developer storage units 53Y and 54Y. The developer storage unit 54Y is communicated with a toner falling conveying path 64Y through an opening formed thereabove.

0064The developing device 5Y having the above described configuration operates as follows.

0065The sleeve of the developing roller 51Y rotates in a direction of an arrow in <figref idref="f0002">Fig. 2</figref>. The developer G supported on the developing roller 51Y by a magnetic field formed by the magnet moves on the developing roller 51Y as the sleeve rotates.

0066The developer G inside the developing device 5Y is adjusted so that a ratio of toner (toner density) contained in the developer can be within a predetermined range. Specifically, as the toner inside the developing device 5Y is consumed, the toner stored in the toner container 32Y is fed to the inside of the developer storage unit 54Y through the toner feeding device 60Y (for example, see <figref idref="f0002">Fig. 3</figref>). A configuration and operation of the toner feeding device will be described later in detail.

0067Thereafter, the toner fed to the inside of the developer storage unit 54Y circulates through the two developer storage units 53Y and 54Y while being mixed and agitated together with the developer G by the two conveying screws 55Y (movement in a direction vertical to a paper plane of <figref idref="f0002">Fig. 2</figref>). The toner in the developer G is absorbed into the carrier by frictional electrification with the carrier and supported on the developing roller 51Y together with the carrier by magnetic force formed on the developing roller 51Y.

0068The developer G supported on the developing roller 51Y is conveyed in a direction of an arrow in <figref idref="f0002">Fig. 2</figref> and then reaches the position of the doctor blade 52Y. The developer G on the developing roller 51Y is adjusted to an appropriate developer amount at this position and then conveyed up to the position (a developing area) facing the photosensitive drum 1Y. The toner is absorbed into a latent image formed on the photosensitive drum 1Y by a magnetic field formed on the developing area. Thereafter, as the sleeve rotates, the developer G remaining on the developing roller 51Y reaches above the developer storage unit 53Y and leaves the developing roller 51Y at this position.

0069Next, the toner feeding devices 60Y, 60M, 60C, and 60K will be described in detail with reference to <figref idref="f0002 f0003">Figs. 3 to 5</figref>.

0070Referring to <figref idref="f0002">Fig. 3</figref>, the toners inside the toner containers 32Y, 32M, 32C, and 32K installed in the toner container storage unit 70 of the apparatus body 100 are appropriately fed to the inside of the developing devices by the toner feeding devices 60Y, 60M, 60C, and 60K respectively installed for toner colors as the toners inside the developing devices of respective colors are consumed.

0071The four toner feeding devices 60Y, 60M, 60C, and 60K and the toner containers 32Y, 32M, 32C, and 32K (the developer containers) have almost the same configuration except that the toner colors used in the image forming process are different, Thus, a description will be made focusing on the toner feeding devices 60Y and the toner container 32Y corresponding to yellow, and a description of the toner feeding devices 60M, 60C, and 60K and the toner containers 32M, 32C, and 32K corresponding to the remaining three colors will be appropriately omitted.

0072Referring to <figref idref="f0001">Fig. 1</figref>, if a body cover (not shown) installed on the front side of the apparatus body 100 (the front side in a direction vertical to the paper plane in <figref idref="f0001">Fig. 1</figref>) is opened, the toner container storage unit 70 (an insertion opening 71) is exposed. In the state in which a longitudinal direction of the toner containers 32Y, 32M, 32C, and 32K (the developer containers) is a horizontal direction, performed is an attaching/detaching operation of the toner containers 32Y, 32M, 32C, and 32K to/from the front side of the apparatus body 100 (an attaching/detaching operation in which the longitudinal direction of the toner container is an attaching/detaching direction).

0073As illustrated in <figref idref="f0003">Fig. 4</figref>, when the toner containers 32Y, 32M, 32C, and 32K are mounted on the toner container storage unit 70 of the apparatus body 100 (movement in a direction of an arrow Q), in conjunction with the mounting operation, a shutter member 34d of the toner containers 32Y, 32M, 32C, and 32K moves, and so a toner discharge opening W (a discharging opening) is opened, so that toner feeding openings 73w (for example, see <figref idref="f0002">Fig. 3</figref>) of the toner feeding devices 60Y, 60M, 60C, and 60K are communicated with the toner discharge opening W. The toner stored in the toner containers 32Y, 32M, 32C, and 32K is discharged from the toner discharge opening W and stored in a toner tank unit 61Y through the toner feeding opening 73w of the toner feeding devices 60Y, 60M, 60C, and 60K.

0074Referring to the schematic view of <figref idref="f0002">Fig. 3</figref>, the toner container 32Y includes a cap section 34Y that is a nearly cylindrical-shaped toner bottle and is usually non-rotatably held on the toner container storage unit 70 and a container body 33Y(a bottle body) in which a gear 33c is integrally formed. The container body 33Y is relatively rotatably held on the cap section 34Y and is rotationally driven in a direction of an arrow in <figref idref="f0002">Fig. 3</figref> by a driving unit 91 (including a driving motor, a driving gear 81, and the like). As the container body 33Y rotates, the toner stored inside the toner container 32Y (the container body 33Y) is conveyed in a longitudinal direction (conveyance from the left to the right in <figref idref="f0002">Fig. 3</figref>) by a protrusion 33b formed on an inner peripheral surface of the container body 33Y in a helical form, and the toner is discharged from the toner discharge opening W of the cap section 34Y. That is, as the container body 33Y of the toner container 32Y is appropriately rotationally driven by the driving unit 91, the toner is appropriately supplied to the toner tank unit 61Y. Further, when each of the toner containers 32Y, 32M, 32C, and 32K reaches the end of its life (when the stored toner is almost consumed and becomes empty), it is replaced with a new one.

0075Referring to <figref idref="f0002">Fig. 3</figref>, the toner feeding devices 60Y, 60M, 60C, and 60K include the toner container storage unit 70, the toner tank unit 61Y, a toner conveying screw 62Y, an agitating member 65Y, a toner end sensor 66Y, the driving unit 91, and the like.

0076The toner tank unit 61Y is disposed below the toner discharge opening W of the toner container 32Y and stores the toner discharged from the toner discharge opening W of the toner container 32Y. The bottom of the toner tank unit 61Y is connected with an upstream section of the toner conveying screw 62Y.

0077The toner end sensor 66Y that detects that the toner stored in the toner tank unit 61Y has become smaller than a predetermined amount is installed on the wall surface of the toner tank unit 61Y (at the position of a predetermined height from the bottom). A piezoelectric sensor or the like may be used as the toner end sensor 66Y. When the control unit 90 detects that the toner stored in the toner tank unit 61Y has become smaller than a predetermined amount (toner end detection) through the toner end sensor 66Y, the driving unit 91 rotationally drives the container body 33Y the toner container 32Y during a predetermined time under control of the control unit 90, so that the toner is fed to the toner tank unit 61Y. Further, when toner end detection by the toner end sensor 66Y is not released even if such control is repeated, it is recognized that there is no toner in the toner container 32Y, and a message for encouraging the replacement of the toner container 32Y is displayed on a display unit (not shown) of the apparatus body 100.

0078Further, the agitating member 65Y that prevents the toner stored in the toner tank unit 61Y from being agglomerated is installed on the central section of the toner tank unit 61Y (near the toner end sensor 66Y). The agitating member 65Y has a flexible member installed on a shaft section and rotates clockwise in <figref idref="f0002">Fig. 3</figref> to agitate the toner inside the toner tank unit 61Y. Further, the leading end of the flexible member of the agitating member 65Y comes in sliding contact with the detection surface of the toner end sensor 66Y at a rotation period, thereby preventing a problem in that the toner is fixed to the detection surface of the toner end sensor 66Y and so a degree of detection accuracy decreases.

0079Even though not shown, the toner conveying screw 62Y conveys the toner stored in the toner tank unit 61Y obliquely upward. Specifically, the toner conveying screw 62Y linearly conveys the toner from the bottom of the toner tank unit 61Y (the lowest point) toward the top of the developing device 5Y. The toner conveyed by the toner conveying screw 62Y falls through the toner falling conveying path 64Y (for example, see <figref idref="f0002">Fig. 2</figref>) by its own weight and is fed to the inside of the developing device 5Y (the developer storage unit 54Y).

0080Referring to <figref idref="f0003">Fig. 4</figref>, the toner container storage unit 70 mainly includes a cap receiving section 73 for holding the cap section 34Y of the toner container 32Y, a bottle receiving section 72 (a container body bearing) for holding the container body 33Y of the toner container 32Y, and an insertion opening 71 that functions as an insertion opening at the time of the mounting operation of the toner container 32Y.

0081Next, the toner container storage unit 70 (the bottle receiving section 72 and the cap receiving section 73) will be described in detail with reference to <figref idref="f0004 f0005 f0006 f0007 f0008 f0009 f0010">Figs. 6 to 15</figref>.

0082First, as described above with reference to <figref idref="f0003">Figs. 4 and 5</figref>, the bottle receiving section 72, the cap receiving section 73, and the insertion opening 71 (that is not shown in <figref idref="f0003">Fig. 5</figref>) are formed in the toner container storage unit 70. The toner container 32Y is mounted on the toner container storage unit 70 through the insertion opening 71 by a user gripping a gripping section 33d in a state in which the longitudinal direction is the horizontal direction and the longitudinal direction is the mounting direction in which the cap section 34Y is the head of the container body 33Y. The toner container 32Y inserted through the insertion opening 71 is pushed toward the cap receiving section 73 by the user while sliding on a bottle receiving surface 72a of the bottle receiving section 72 (for example, see <figref idref="f0003">Figs. 5</figref>, <figref idref="f0004">6</figref>, and <figref idref="f0005">9</figref>). Referring to <figref idref="f0004">Fig. 6</figref>, in the bottle receiving section 72, the bottle receiving surface 72a is formed for each color, and the toner containers 32Y, 32M, 32C, and 32K corresponding to respective colors are inserted (inserted in a direction of a white allow). Further, referring to <figref idref="f0005">Fig. 8</figref>, even in the cap receiving section 73, bottle receiving sections 73Y, 73M, 73C, and 73K are formed for respective colors, and the toner containers 32Y, 32M, 32C, and 32K corresponding to respective colors are inserted(inserted in a direction of a white allow). At this position, the cap receiving section is non-rotatably held.

0083Referring to <figref idref="f0003">Figs. 5</figref> and <figref idref="f0012">18(A)</figref>, the bottle receiving surface 72a, a stopper release urging section 72b, and the like are formed in the bottle receiving section 72 of the toner container storage unit 70.

0084The bottle receiving surface 72a functions as a sliding surface of the toner container 32Y at the time of the attaching/detaching operation of the toner container 32Y and functions as a holding unit of the rotationally driven container body 33Y after the toner container 32Y has been completely set.

0085Referring to <figref idref="f0003">Fig. 5</figref>, the stopper release urging section 72b is a trapezoidal rib formed above the bottle receiving surface 72a (at the downstream side of the toner container 32Y in the mounting direction). Referring to <figref idref="f0015">Fig. 24</figref>, the stopper release urging section 72b pushes a stopper release section 34d21 of the shutter member 34d up and releases a contact state between a stopper section 34d22 and a contact section 34n5 in conjunction with the mounting operation of the toner container 32Y (allows an opening operation of the shutter member 34d).

0086Referring to <figref idref="f0008">Figs. 12A, 12B</figref>, and <figref idref="f0009">13</figref>, in the cap receiving section 73 of the toner container storage unit 70, a main reference pin 73a, a sub reference pin 73b, a contacted groove 73m, a lateral groove 73h, a wall section 73g, a through hole 73f, and the like are disposed.

0087The main reference pin 73a and the sub reference pin 73b as positioning pins are fitted into a first positioning hole 34a and a second positioning hole 34b of the cap section 34Y of the toner container 32Y. Positioning of the cap section 34Y is performed in the cap receiving section 73.

0088Referring to <figref idref="f0004">Fig. 7</figref>, the main reference pin 73a is formed to be longer than the sub reference pin 73b in the longitudinal direction (the position of the reference surface that is the base section is formed on the same plane surface). Further, the main reference pin 73a has a tapered leading end portion. Thus, in the attaching operation of the toner container 32Y to the cap receiving section 73 in the longitudinal direction, the toner container 32Y can be smoothly mounted on the cap receiving section 73.

0089Further, referring to <figref idref="f0008">Figs. 12A, 12B</figref>, and <figref idref="f0009">13</figref>, the contacted groove 73m is the inner wall of the cap receiving section 73 and is also a concave section that is formed, above the main reference pin 73a, in a groove shape at an upstream side in the mounting direction further than the leading end section of the main reference pin 73a. A guide rail section 34e that is formed to extend in the longitudinal direction in an upper outer circumference of the cap section 34Y of the toner container 32Y which will be described later is fitted into the contacted groove 73m before the main reference pin 73a is inserted into the positioning hole 34a.

0090Referring to <figref idref="f0009">Fig. 13</figref>, the lateral groove 73h that is formed to extend in the longitudinal direction and is penetrated toward the outer circumferential side of the cap receiving section 73 is formed on each of both sides of the inner wall of the cap receiving section 73 in a left-right symmetrical relation. Further, cap section sandwiching members that have a nearly pentagonal shape when viewed from the top and a groove section (that is formed to be connected with a lateral groove 73h) when viewed in the longitudinal direction are disposed on an outer circumferential side of the cap receiving section 73 in a left-right symmetrical relation.

0091The cap section sandwiching member is formed of a member different from the cap receiving section 73, fitted into a dent formed on the outer circumferential surface of the cap receiving section 73, urged by a torsion coil spring disposed thereabove centering on a cylindrical axis, and thus pressed against the side of the lateral groove 73h. As a result, the lateral groove 73h is connected with the groove section of the cap section sandwiching member, and a pair of deeper left and right groove sections is apparently formed.

0092In the case of attaching or detaching the toner container 32Y, the lateral protrusion 34c formed in the cap section 34Y pushes and passes through the cap section sandwiching member 73r urged by the torsion coil spring 93 inside the above described deeper groove section (one in which the groove section is formed integrally with the lateral groove 73h). Thus, the user who performs the attaching/detaching operation of the toner container 32Y to/from the image forming apparatus body 100 (the cap receiving section 73) can feel a click feeling synchronized with the attaching/detaching operation and perform the attaching/detaching operation of the toner container 32Y at an optimum speed (acceleration) other than a half-hearted speed.

0093Referring to <figref idref="f0008">Figs. 12A</figref> and <figref idref="f0009">13</figref>, on the inner side wall surface of the cap receiving section 73 (the wall surface rising in a vertical direction at an apparatus direction inner side), the through hole 73f having a shape obtained by connecting and overlapping edge lines of an elliptical hole and a quadrate hole extending in the vertical direction is formed. A connector 73e which will be described later is installed to be exposed in the inner wall side of the cap receiving section 73 through the through hole 73f. When the toner container 32Y is mounted on the cap receiving section 73 (the apparatus body 100), the connector 73 e comes in face contact with an ID chip disposed at the leading end of the cap section 34Y, and so information communication can be performed between the ID chip 35 and the apparatus body 100 (the control unit 90).

0094An installation form of the connector 73e on the cap receiving section 73 of the toner container storage unit 70 will be described below.

0095The four connectors 73e are disposed in the cap receiving sections 73, corresponding to the toner containers 32Y, 32M, 32C, and 32K of respective colors of yellow, magenta, cyan, and black. Referring to <figref idref="f0005">Fig. 8</figref>, the four connectors 73e are disposed in line on a single rectangular common electronic substrate 95. Specifically, by fitting a snap fit 73e4 formed on the bottom of the connector 73 e into a hole (not shown) formed in the common electronic substrate 95, the connector 73e is fixed onto the common electronic substrate 95.

0096Further, referring to <figref idref="f0005">Figs. 8</figref>, the common electronic substrate 95 to which the four connectors 73e are fixed are installed and fixed along the arrangement direction of the four cap receiving sections 73K, 73C, 73M, and 73Y in the state in which the four connectors 73e are inserted into the inside of the cap receiving section 73 through the through holes 73f, respectively. Specifically, four screws 99 are screwed into female screw sections 73x formed below the outer wall sections of the four cap receiving sections 73K, 73C, 73M, and 73Y through holes formed in the common electronic substrate 95, and the common electronic substrate 95 is screw-coupled with the cap receiving section 73 from the outside.

0097Referring to <figref idref="f0008">Figs. 12A, 12B</figref>, and <figref idref="f0009">13</figref>, a wall section 73g is installed to surround the lower section and the side section of the through hole 73f in which the connector 73e is installed. By forming the wall section 73g, even if the toner is scattered from the vicinity of the toner discharge opening W of the toner container 32Y to the outside, since the scattered toner is blocked by the wall section 73g, the scattered toner is difficult to stick directly to the connector 73e and the ID chip 35. Thus, a contact failure (a communication failure) between the connector 73e (the body side terminal) and the ID chip (the metallic pad 35a) caused by the scattered toner can be suppressed.

0098Necessary information is exchanged between the ID chip (the information storage device) of the toner containers 32Y, 32M, 32C, and 32K and the connector 73e of the apparatus body 100. Information communicated between both sides includes information such as a manufacturing number, a manufacturing date, and the number of recycling times of the toner container or the ID chip, information such as capacity, a lot number, and color of a toner, and information such as a use history of the image forming apparatus body 100. In the ID chip (the information storage device), the electronic information is stored in advance before it is installed in the image forming apparatus body 100 (or information received from the apparatus body 100 after it is installed is stored). The ID chip (the information storage device) will be described later in further detail.

0099Next, the toner containers 32Y, 32M, 32C, and 32K will be described in detail with reference to <figref idref="f0010 f0011 f0012 f0013 f0014">Figs. 14 to 22</figref>.

0100Referring to <figref idref="f0010">Figs. 14 and 15</figref>, the toner container 32Y mainly includes the container body 33Y (a bottle body) and the cap section 34Y (a bottle cap) disposed at the head thereof. Further, the ID chip 35 as the information storage device or the like is detachably installed in the cap section 34Y of the toner container 32Y.

0101On the head of the container body 33Y, the gear 33c that integrally rotates together with the container body 33Y and an opening A are disposed on one end side in the longitudinal direction (the left-right direction in <figref idref="f0014">Fig. 22</figref>) (for example, see <figref idref="f0010">Figs. 15</figref> and <figref idref="f0014">22</figref>). The opening A is disposed on the head of the container body 33Y (the position that becomes the front side in the mounting operation) and discharges the toner stored in the container body 33Y toward the space inside the cap section 34Y (a hollow space, for example, see <figref idref="f0014">Fig. 22</figref>).

0102Further, as the toner is consumed at the image forming apparatus body side, toner conveyance from the inside of the container body 33Y to the hollow space inside the cap section 34Y (rotational driving of the container body 33Y) is appropriately performed.

0103The gear 33c meshes with a driving gear 81 disposed in the toner container storage unit 70 of the apparatus body 100 and rotationally drives the container body 33Y centering on a rotational shaft. Specifically, the gear 33c is exposed through a notch hole 34x (for example, see <figref idref="f0010">Fig. 14</figref>) formed on the outer circumferential surface of the cap section 34Y which will be described later and meshes with the driving gear 81 of the apparatus body 100 at a obliquely downward meshing position in <figref idref="f0002">Fig. 3</figref>. Further, driving force is transferred from the driving gear 81 to the gear 33c, and the container body 33Y rotates clockwise. In the present first embodiment, the driving gear 81 and the gear 33c are spur gears.

0104Referring to <figref idref="f0010">Fig. 14</figref>, on the other end side of the container body 33Y in the longitudinal direction (the rear end section in the mounting direction), the gripping section 33d gripped by the user when performing the attaching/detaching work of the toner container 32Y is disposed. The user mounts the toner container 32Y to the image forming apparatus body 100 while gripping the gripping section 33d (movement of the toner container 32Y in a direction of an arrow in <figref idref="f0010">Fig. 14</figref>).

0105Further, on the outer circumferential surface of the container body 33Y, the helical protrusion 33b (a helical groove when viewed from the outer circumference surface side) is disposed. The helical protrusion 33b rotationally drives the container body 33Y in a predetermined direction and discharges the toner through the opening A. The container body 33Y having the above described configuration may be fabricated by blow molding together with the gear 33c disposed on the circumferential surface thereof and the gripping section 33d.

0106Referring to <figref idref="f0014">Fig. 22</figref>, in the toner container 32Y according to the present first embodiment, an agitating member 33f that rotates together with the container body 33Y is fitted into a bottle mouth section 33a (the opening A) illustrated in <figref idref="f0010">Fig. 15</figref>. The agitating member 33f is a rod-like member that extends from the hollow space inside the cap section 34Y to the inside of the container body 33Y. Since the agitating member 33f rotates together with the opening A of the container body 33Y, discharging efficiency of the toner from the opening A is improved.

0107Referring to <figref idref="f0010">Figs. 15</figref> and <figref idref="f0014">22</figref>, an engaged section 33j (a flange section), which is engaged with a claw section 34j of the cap section 34Y to connect both members 33Y and 34Y with each other, is formed around the opening A of the container body 33Y to make one round around the outer circumference. As described above, the container body 33Y is rotatably fitted into the cap section 34Y.

0108Further, referring to <figref idref="f0010">Figs. 15</figref> and <figref idref="f0014">22</figref>, a head section 33Yc of the container body 33Y (near the position at which the gear 33c is formed) is formed to have the inner diameter smaller than the inner diameter of a storage section 33Ya storing the toner (the position at which the helical protrusion 33b is formed). In the container body 33Y, a pumping section 33Yb formed to protrude from the inner circumferential surface thereof toward the inside is disposed between the head section 33Yc and the storage section 33Ya. As the container body 33Y rotates, the toner conveyed toward the opening A by the helical protrusion 33b is pumped to the small diameter section of the head section 33Yc by the pumping section 33Yb. Thereafter, the toner pumped to the small diameter of the head section 33Yc is discharged toward the hollow space of the cap section 34Y from the opening A while being agitated by the agitating member 33f.

0109Referring to <figref idref="f0011">Figs. 16 and 17</figref>, the ID chip (the information storage device), the shutter member 34d, a shutter seal 36, and the like are installed in the cap section 34Y of the toner container 32Y.

0110Referring to <figref idref="f0011">Fig. 16</figref>, the cap section 34Y has a structure in which roughly a cylindrical section (a larger diameter cylindrical section 34Y1, a medium diameter cylindrical section 34Y2, and a small diameter cylindrical section 34Y3) in which the outer diameter and the inner diameter decreases from the container body 33Y side toward the shutter member 34d side in three stages is combined with a box section (a wide width box section 34Y11 and a narrow width box section 34Y12), disposed at the bottom, in which the width in the horizontal direction decreases in two stages are combined.

0111An insertion section 34z (for example, see <figref idref="f0014">Fig. 22</figref>) including the larger diameter cylindrical section 34Y1, the medium diameter cylindrical section 34Y2, the wide width box section 34Y11, and part of the narrow width box section 34Y12 is formed in the cap section 34Y. The head section 33Yc of the container body 33Y and part of the pumping section 33Yb are inserted into the insertion section 34z. Referring to <figref idref="f0014">Fig. 22</figref>, in the insertion section 34z, the medium diameter cylindrical section 34Y2 is formed to have the inner diameter D smaller than the tip diameter of the gear 33c and larger than the outer diameter of the opening A of the container body 33Y. Further, the small diameter cylindrical section 34Y3 is formed to have the inner diameter B smaller than the inner diameter D of the medium diameter cylindrical section 34Y2 and smaller than the outer diameter of the opening A.

0112An annular cap seal 37 (an elastic seal) in which the opening diameter becomes nearly the same as the inner diameter B is attached to an annular vertical wall surface (the surface facing the circumference of the opening A of the container body 33Y), which connects the medium diameter cylindrical section 34Y2 with the small diameter cylindrical section 34Y3, by a double-sided tape. The head section 33Yc and part of the pumping section 33Yb are inserted into the insertion section 34z such that an edge of the opening A of the head section 33Yc of the container body 33Y comes in contact with and bites into the cap seal 37. By the above described configuration, a functional section such as part of the gear 33c (a section excluding a section exposed from the notch hole 34x) and a connection section between the cap section 34Y and the container body 33Y are covered with the larger diameter cylindrical section 34Y1. For this reason, even when the toner container 32 is solely held by the user, the user can be prevented from touching the functional portion, and even if unexpected external force (for example, careless hitting) is applied to the toner container 32Y, toner leak from the connection section or damage of the tooth surface of the gear 33c can be alleviated. Further, since the annular cap seal 37 is excellent in sliding property and elasticity of the surface, even if the container body 33Y rotates while biting into the annular cap seal 37, there does not occur toner leak caused by a gap generated between the container body 33Y and the cap section 34Y. As a material of the cap seal 37, a high-density microcell urethane sheet having a structure that is high in density, fine, and uniform unlike general soft polyurethane foam (PUR) is used. As a result, compared to the case of using the general PUR, settling of the cap seal 37 is small, and the sealing property between the container body 33Y and the cap section 34Y can be maintained for a long time.

0113Referring to <figref idref="f0011">Figs. 16</figref> and <figref idref="f0014">22</figref>, inside the narrow width box section 34Y12 positioned below the small diameter cylindrical section 34Y3 of the cap section 34Y, disposed is a toner falling path C having a hole of a hexagonal cylindrical shape for discharging the toner discharged from the opening A of the container body 33Y to the container outside downward in the vertical direction (falling by its own weight). The toner falling path C has a predetermined flow passage area of a hexagonal cross section and communicates the lower side circumferential surface inside the small diameter cylindrical section 34Y3 with the toner discharge opening W (discharge opening). The toner discharged to the inside of the small diameter cylindrical section 34Y3 of the cap section 34Y from the opening area A of the container body 33Y falls through the toner falling path C of the hexagonal cylindrical shape by its own weight and then is smoothly discharged from the toner discharge opening W to the container outside (the toner tank section 61Y).

0114On the bottom of the narrow width box section 34Y12, part of the shutter member 34d (a main shutter section 34d1) for performing opening/closing of the toner discharge opening W in conjunction with the attaching/detaching operation of the toner container 32Y to/from the toner container storage unit 70 is held to be slidingly movable.

0115<figref idref="f0011">Figs. 16 and 17</figref> illustrate an operation in which the shutter member 34d starts opening of the toner discharge opening W and then completes opening. <figref idref="f0012">Figs. 18(A) to 18(C)</figref> are schematic views illustrating the opening operation of the shutter member 34d (a shutter deforming section 34d2) at that time. Further, <figref idref="f0013">Figs. 19 and 20</figref> are perspective views illustrating the shutter member 34d. In <figref idref="f0012">Figs. 18(B) and 18(C)</figref>, the cap section 34Y, the cap receiving section 73, and the bottle receiving section 72 which are illustrated in <figref idref="f0012">Fig. 18(A)</figref> are partially omitted.

0116Referring to <figref idref="f0011 f0012 f0013">Figs. 16 to 20</figref>, the shutter member 34d is formed of a resin material such as polystyrene and mainly includes a plate-like main shutter section 34dl and a shutter deforming section 34d2 that protrudes the main shutter section 34d1, is thinner in thickness than the main shutter section 34d1, and has elasticity.

0117Referring to <figref idref="f0013">Figs. 19 and 20</figref>, in the main shutter section 34d1 of the shutter member 34d, vertical wall 34d13 standing at both side end sections (vertical walls extending in parallel to the mounting direction of the toner container 32Y) and a shutter slider 34d12 having a plurality of protruding objects protruding from the vertical walls 34d13 are formed on both side end sections, respectively. The shutter slider 34d12 includes a slide protruding section 34d12a protruding from the inner side surface of the vertical wall 34d13, an L-shaped engaged protruding section 34d12b protruding from the outer side surface of the vertical wall 34d13, and a pair of prismatic sections 34d12c that is disposed to protrude from the same outer side surface as the engaged protruding section 34d12b and extends from the body of the main shutter section 34d1 to the wide width box section 34Y11. Meanwhile, in the narrow width box section 34Y12 of the cap section 34Y, a pair of slide grooves 34t (for example, see <figref idref="f0011">Fig. 17</figref>) extending in both side walls in the longitudinal direction is formed by a rib. The slide protruding section 34d12a is fitted into the slide groove 34t, and thus the main shutter section 34d1 of the shutter member 34d is slide-movably supported on the cap section 34Y.

0118Further, a shutter seal 36 adheres to the upper surface of the main shutter section 34d1 (the surface facing the toner discharge opening W) as a seal member. The shutter seal 36 is a thin rectangular parallelepiped-like elastic seal, and similarly to the cap seal 37, a high density microcell urethane sheet is used as a material in view of sliding property and elasticity of the surface. For this reason, even if the opening/closing operation of the shutter member 34d is repeated, a sealing characteristic in the toner discharge opening W can be maintained in the state in which the shutter member 34d closes the toner discharge opening W.

0119The slide protruding section 34d12a of the shutter slider 34d12 is fitted into the slide groove 34t of the narrow width box section 34Y12 (the cap section 34Y). Further, in this state, the shutter seal 36 is sandwiched between a protrusion 34r (for example, see <figref idref="f0011">Fig. 17</figref>) of a hexagonal ring shape protruding downward along an edge of the hexagonal toner discharge opening W of the narrow width box section 34Y12 and a main shutter section 34d1, and the shutter seal 36 becomes a slightly compressed state. In this state, the shutter member 34d moves along the slide groove 34t, and thus the main shutter section 34d1 opens or closes the toner discharge opening W while suppressing toner leak. Further, in the state in which the main shutter section 34d1 (the shutter member 34d) has closed the toner discharge opening W, the toner leak from between the main shutter section 34d1 and the toner discharge opening W is prevented.

0120Specifically, the shutter member 34d relatively moves in the longitudinal direction from the cap section 34Y side to the container body 33Y side (moves to the left in <figref idref="f0014">Fig. 22</figref>) to open the toner discharge opening W and relatively moves in the longitudinal direction from the container body 33Y side to the cap section 34Y side (moves to the right in <figref idref="f0014">Fig. 22</figref>) to close the toner discharge opening W. The opening/closing operation of the shutter member 34d (the opening/closing operation of the toner discharge opening W) is performed in conjunction with the attaching/detaching operation of the toner container 32Y to/from the toner container storage unit 70 (the apparatus body 100) in the longitudinal direction.

0121Referring to <figref idref="f0013">Figs. 19 and 20</figref>, the shutter deforming section 34d2 of the shutter member 34d is formed integrally with the main shutter section 34d1 and formed at the board thickness thinner than the board thickness of the main shutter section 34dl as described above. The shutter deforming section 34d2 mainly includes two spindly flat plate sections 34d23 extending from the end surface of the main shutter section 34d1 at the container body 33Y and a plate-like member 34d24 extending in a direction orthogonal to the longitudinal direction to connect the two flat plate sections 34d23 with each other near the leading end sections (the free ends). The shutter deforming section 34d2 is formed to be elastically deformed in the vertical direction from a fixed end (a connection portion) with the main shutter section 34d1 as a reference point. On the leading end sections (the free ends) of the two flat plate sections 34d23, formed are stopper sections 34d22 for fixing the shutter member 34d so as to prevent careless opening of the toner discharge opening W as will be described later. On the bottom side of the plate-like member 34d24, formed is the stopper release section 34d21 that is an inclined protrusion (having a triangular cross section) protruding, in a mountain shape, downward in the vertical direction and that releases fixing of the shutter member 34d in cooperation with the stopper release urging section 72b of the cap receiving section 73 as will be described later.

0122Referring to <figref idref="f0011">Figs. 16 and 17</figref>, in the wide width box section 34Y11 positioned below the larger diameter cylindrical section 34Y1 of the cap section 34Y, formed is a shutter storage section 34n that stores the shutter deforming section 34d2 thereinside at the time of shutter opening. Among the four side surfaces of the wide width box section 34Y11, the two side surfaces facing in the longitudinal direction (a direction of an arrow in <figref idref="f0011">Fig. 16</figref>) are opened. Particularly, in the side surface formed at the toner discharge opening W side, part of the wall surface is formed at both side ends of the bottom side, but most of it functions as an opening 34n1 extending in the horizontal direction. The opening 34n1 is formed such that two surfaces including the side surface and the bottom surface that are at the toner discharge opening W side of the wide width box section 34Y11 are cut out. Among edge sections of the opening 34n1, an edge section formed to stand from the bottom surface of the wide width box section 34Y11 in the vertical direction becomes the contact section 34n5.

0123The stopper section 34d22 of the shutter deforming section 34d2 is a wall section formed at a farthest end section of the shutter deforming section 34d2 (the leading end of the shutter deforming section 34d2 away from the main shutter section 34d1) in the opening direction (the left direction in <figref idref="f0012">Fig. 18</figref>). The stopper section 34d22 of the shutter deforming section 34d2 comes in contact with the contact section 34n5 and thus restricts the shutter member 34d from moving in the direction of opening the toner discharge opening W from the state in which the toner discharge opening W is closed. That is, when the toner container 32Y is in a separated state (the state in which it is not set to the apparatus body 100 yet), since the stopper section 34d22 of the shutter member 34d comes in contact with the contact section 34n5, a phenomenon that the shutter member 34d moves in the opening direction on its own and so opens the toner discharge opening W does not happen.

0124Meanwhile, the stopper release section 34d21 comes in contact with the stopper release urging section 72b (for example, see <figref idref="f0003">Figs. 5</figref> and <figref idref="f0012">18</figref>) formed in the bottle receiving section 72 in conjunction with the mounting operation of the toner container 32Y to the toner container storage unit 70 and is pushed upward by the stopper release urging section 72b (as external force is applied upward). Then, the shutter deforming section 34d2 is elastically deformed upward, and the stopper section 34d22 is also displaced upward. As a result, the contact state between the stopper section 34d22 and the contact section 34n5 is released, so that the shutter member 34d can move in the opening direction.

0125An operation of the shutter member 34d in conjunction with the mounting operation of the toner container 32Y to the toner container storage unit 70 will be described below in detail with reference to <figref idref="f0012">Figs. 18(A) to 18(C)</figref>. The position of the shutter member 34d in <figref idref="f0012">Figs. 18(A) and 18(C)</figref> corresponds to the position of the shutter member 34d in <figref idref="f0011">Figs. 16 and 17</figref>, respectively.

0126As illustrated in <figref idref="f0012">Fig. 18</figref>, the mounting operation of the toner container 32Y to the toner container storage unit 70 (movement in the left direction in <figref idref="f0012">Fig. 18</figref>) starts, and when the stopper release section 34d21 of the shutter member 34d does not reach the position of the stopper release urging section 72b (for example, also see <figref idref="f0003">Fig. 5</figref>) formed in the bottle receiving section 72, the stopper section 34d22 of the shutter member 34d comes in contact with the contact section 34n5, and thus movement of the shutter member 34d in the opening direction is restricted. Further, on the upper surface of the bottle receiving section 72 at the cap receiving section 73 side near the stopper release urging section 72b, a bristle brush 72f is disposed to rub the bottom surface of the shutter member 34d and clean contamination. Particularly, the bristle brush 72f is effective in cleaning flying toner sticking to the bottom surface of the shutter member 34d during an operation of attaching/detaching the toner container 32Y.

0127Thereafter, when the mounting operation of the toner container 32Y proceeds, as illustrated in <figref idref="f0012">Fig. 18(B)</figref>, the stopper release section 34d21 is pushed up by the stopper release urging section 72b, and so the shutter deforming section 34d2 is elastically deformed from the connection position (a section encircled by an alternate long and short dash line) as the reference point. As a result, the contact state between the stopper section 34d22 and the contact section 34n5 is released, and so the shutter member 34d can relatively move in the opening direction.

0128Thereafter, the shutter member 34d comes in contact with the wall section (a section indicated as "contact position" in the drawings) formed around the toner feeding opening 73w of the cap receiving section 73, and so movement in the toner container storage unit 70 (the cap receiving section 73) is restricted (the shutter member 34d does not absolutely move in the longitudinal direction). However, since movement in the mounting direction of the toner container 32Y is performed, the shutter member 34d moves relative to the toner discharge opening W in the opening direction. That is, as illustrated in <figref idref="f0012">Fig. 18(C)</figref>, the shutter member 34d relatively moves to the container body 33Y side, and so the shutter deforming section 34d2 is stored in the shutter storage section 34n. As a result, opening of the toner discharge opening W is completely finished by movement of the shutter member 34d in the opening direction. Further, the toner discharge opening W matches with the toner feeding opening 73w of the cap receiving section 73 in a superimposed manner, and an integrated toner feeding passage leading from the toner container 32Y to the toner feeding device is formed. At this time, the stopper release section 34d21 of the shutter member 34d is stored in an extension section of the opening 34n1 of the cap storage section 34n. Thus, it is possible to prevent a problem in that the shutter deforming section 34d2 stored in the shutter storage section 34n is held in a greatly elastically deformed state by contact between the stopper release section 34d21 and the shutter storage section 34n.

0129As described above, in the toner container 32Y according to the present first embodiment, the shutter deforming section 34d2 that is elastically deformed from the connection position with the main shutter section 34d1 as the reference point is disposed in the shutter member 34d, and the stopper section 34d22 that restricts movement of the shutter member 34d in the opening direction and the stopper release section 34d21 that releases the stopper section 34d22 are disposed in the shutter deforming section 34d2. Thus, the shutter member 34d does not open the toner discharge opening W as it pleases in the state in which the toner container 32Y is removed, and only when the toner container 32Y is set to the image forming apparatus body 100, the shutter member 34d opens the toner discharge opening W in conjunction with the mounting operation thereof.

0130An operation of the L-shaped engaged protruding section 34d12b related to the shutter opening/closing operation will be described below.

0131As illustrated in <figref idref="f0013">Fig. 19</figref>, the L-shaped engaged protruding sections 34d12b are formed on both side end sections of the main shutter section 34d1, respectively. Meanwhile, even though not shown because it is illustrated in the drawings of Japanese Patent Application No. <patcit id="pcit0014" dnum="JP2011009782A"><text>2011-9782</text></patcit>, on the bottom surface inside the cap receiving section 73, a pair of urging members is installed to face a pair of engaged protruding sections 34d12b. The pair of urging members is an L-shaped lever (a spindle that becomes a rotation center is formed near an L-shaped curved portion) that forms a shape symmetrical to each other, and an arm section at one side thereof is urged by a torsion coil spring. If the toner container 32Y (the cap section 34Y) is mounted on the cap receiving section 73, an arm section of the other end side of the urging member is engaged with the engaged protruding section 34d12b and applies urging force in a direction resisting the direction in which the shutter member 34d is opened. The user pushes the toner container 32Y by force overcoming urging force by the above described urging member, and opening of the shutter member 34d is rapidly performed. As a result, a state in which the toner discharge opening W does not match with the toner feeding opening 73w of the cap receiving section 73 occurs only instantaneously, and toner leak from between the toner discharge opening W and the toner feeding opening 73w can be suppressed.

0132On the other hand, when the toner container 32Y (the cap section 34Y) is removed from the cap receiving section 73, the arm section of the urging member becomes a state urged to push the engaged protruding section 34d12b in the mounting direction. The user attempts to pull out the toner container 32Y by force overcoming urging force by the urging member, and so closing of the shutter member 34d is rapidly performed. As a result, similarly to the time of the opening operation, toner leak from between the toner discharge opening W and the toner feeding opening 73w can be suppressed.

0133Referring to <figref idref="f0014">Fig. 22</figref>, in the upper section (the ceiling portion) of the cap section 34Y, the first positioning hole 34a extending in the longitudinal direction from the end surface of the cap section 34Y orthogonal to the longitudinal direction is formed. The first positioning hole 34a becomes a main positioning reference of the cap section 34Y in the image forming apparatus body 100. Specifically, the main reference pin 73a (for example, see <figref idref="f0008">Figs. 12A and 12B</figref>) as the positioning pin of the cap receiving section 73 is fitted into the first positioning hole 34a of the cap section 34Y in conjunction with the mounting operation of the toner container 32Y to the toner container storage unit 70 in the longitudinal direction.

0134In the lower section (the bottom portion) of the cap section 34Y, the second positioning hole 34b extending in the longitudinal direction from the end surface of the cap section 34Y orthogonal to the longitudinal direction is formed not to reach the position of the toner discharge opening W. The second positioning hole 34b becomes a sub positioning reference of the cap section 34Y in the image forming apparatus body 100. Specifically, the sub reference pin 73b (for example, see <figref idref="f0008">Figs. 12A and 12B</figref>) as the positioning pin of the cap receiving section 73 is fitted into the second positioning hole 34b of the cap section 34Y in conjunction with the mounting operation of the toner container 32Y to the toner container storage unit 70 in the longitudinal direction. Further, the second positioning hole 34b is a oblong hole in which a vertical direction is a longitudinal direction (this "longitudinal direction" has a different meaning from the "longitudinal direction" of the toner container 32Y described in the other sections).

0135Positioning of the cap section 34Y in the toner container storage unit 70 is performed by the two positioning holes 34a and 34b having the above described configuration.

0136The hole depth of the first positioning hole 34a is set to be larger than the hole depth of the second positioning hole 34b. The length of the main reference pin 73a in the longitudinal direction is set to be larger than the length of the sub reference pin 73b in the longitudinal direction. In the mounting operation of the toner container 32Y to the toner container storage unit 70 (the cap receiving section 73) in the longitudinal direction, the main reference pin 73a starts to be fitted into the first positioning hole 34a that is the main positioning reference, and then the sub reference pin 73b starts to be fitted into the second positioning hole 34b that is the sub positioning reference, so that the toner container 32Y can be smoothly mounted on the toner container storage unit 70 (the cap receiving section 73). Further, since the first positioning hole 34a that is long in the longitudinal direction is disposed in the ceiling section of the cap section 34Y (a section that is not buried in the toner), there is no influence on a conveying property (a flow property) of the toner inside the cap section 34Y. The second positioning hole 34b that is short in the longitudinal direction is formed on the bottom of the cap section 34Y but sufficiently performs a function as the sub positioning reference since it can be disposed using a small space from the end surface of the cap section 34Y to the position of the toner discharge opening W.

0137On the outer circumferential surface of the cap section 34Y above the first positioning hole 34a of the cap section 34Y, a guide rail section 34e extending in an axial direction of the first positioning hole 34a is formed. The guide rail section 34e protrudes upward in the vertical direction from the outer circumferential surface of the cap section 34Y to be line-symmetrical to a virtual vertical line passing through the hole center of the first positioning hole 34a when viewed in a cross section orthogonal to the longitudinal direction and extends in the longitudinal direction. Before the main reference pin 73a is inserted into the positioning hole 34a, the guide rail section 34e is fitted into the contacted groove 73m (a concave section), which is formed in a groove shape in the inner wall of the cap receiving section 73 above the main reference pin 73a, from the upstream side in the mounting direction further than the leading end section of the main reference pin 73a and restricts a posture of the cap section 34Y in the horizontal direction orthogonal to the longitudinal direction at the time of mounting movement to the image forming apparatus body 100 (the cap receiving section 73). Further, in the leading end of the guide rail section 34e, a protruding section 34el slightly protruding in the longitudinal direction from the end surface of the first positioning hole 34a is formed. The protruding section 34e1 is formed in a tapered shape. The guide rail section 34e enters the contacted grooves 73m formed on the cap receiving section 73, and so the cap section 34Y is guided to the inside of the cap receiving section 73. Thus, when the cap section 34Y is mounted on the cap receiving section 73, in the first positioning hole 34a, the tapered protruding section 34e1 is fitted into the contacted groove 73m before the first positioning hole 34a is fitted into the main reference pin 73a, and thus the cap section 34Y is smoothly mounted on the cap receiving section 73.

0138Lateral protrusions 34c for restricting a posture of the cap section 34Y in the rotation direction in the image forming apparatus body 100 (the cap receiving section 73) are formed on both side sections of the cap section 34Y, respectively. The lateral protrusion 34c protrudes to both sides in the horizontal direction from the outer circumferential surface of the cap section 34Y to be disposed on a virtual horizontal line passing through the center of a virtual line segment connecting the hole center of the first positioning hole 34a with the hole center of the second positioning hole 34b when viewed in a cross section orthogonal to the longitudinal direction and extends in the longitudinal direction. The two lateral protrusions 34c are engaged with the lateral groove 73h and the groove section 73r1, for example, while being pressed to be pushed back in a direction opposite to pushing by the cap section sandwiching member 73r in the cap receiving section 73. Thus, the cap section 34Y is attached to or detached from the cap receiving section 73 while the posture of the cap section 34Y in the rotation direction is being restricted, and the posture of the cap section 34Y in the rotation direction is restricted in the state in which the cap section 34Y is mounted on the cap receiving section 73.

0139In further detail, in the lateral protrusion 34c, the leading end in the longitudinal direction (the mounting direction) is formed in a tapered shape. Here, when the cap section 34Y is mounted on the cap receiving section 73, the guide rail section 34e is first fitted into the contacted groove 73m, and then the two lateral protrusions 34c having the tapered leading end are fitted into the lateral grooves 73h and the groove sections 73r1. Thus, the cap section 34Y is smoothly mounted on the cap receiving section 73 in the state in which the posture of the cap section 34Y is restricted with a high degree of certainty.

0140On both ends of the bottom of the cap section 34Y, disposed are convex sections 34g and 34h for securing incompatibility of the toner container 32Y (the developer container). In detail, on the upper surface side of a flat plate-like blade member extending laterally from the bottom of the cap section 34Y, the convex sections 34g and 34h are disposed to protrude upward. The convex sections 34g and 34h are configured to be fitted into a fitting section 72m (that is formed in the bottle receiving section 72 of the toner container storage unit 70) illustrated in <figref idref="f0005">Fig. 9</figref> when the mounting operation of the toner container 32Y to the toner container storage unit 70 is correct (when the toner container 32Y is mounted to the true position of the toner container storage unit 70).

0141Specifically, even though not shown, the convex sections 34g and 34h are disposed at the different positions depending on color of the toner stored in the toner container (the container body). In detail, if it is assumed that the leading end in the mounting direction when the toner container 32Y is mounted on the image forming apparatus body 100 is the front, the convex sections 34g and 34h are disposed so that the protruding positions are not superimposed when viewed from the front and are disposed at the different positions depending on the color. The convex sections 34g and 34h of the toner container corresponding to cyan are formed at the position to be fitted only into the cyan fitting section 72m of the toner container storage unit 70, the convex sections 34g and 34h of the toner container corresponding to magenta are formed at the position to be fitted only into the magenta fitting section 72m of the toner container storage unit 70, the convex sections 34g and 34h of the toner container corresponding to yellow are formed at the position to be fitted only into the yellow fitting section 72m of the toner container storage unit 70, and the convex sections 34g and 34h of the toner container corresponding to black are formed at the position to be fitted only into the black fitting section 72m of the toner container storage unit 70.

0142The above described configuration prevents a problem in that the toner container of a different color (for example, the toner container of yellow) is set to the toner container storage unit of a predetermined color (for example, the toner container storage unit of cyan) and thus a predetermined color image cannot be formed. That is, the toner container is prevented from being erroneously set to the toner container storage unit.

0143<figref idref="f0006">Fig. 10</figref> illustrates the state when the mounting operation of the toner container 32Y to the toner container storage unit 70 is correct. The convex sections 34g and 34h of the cap section 34Y do not interfere with the fitting section 72m of the bottle receiving section 72. On the other hand, <figref idref="f0007">Fig. 11</figref> illustrates the state when the mounting operation of the toner container 32Y to the toner container storage unit 70 is not correct. The convex sections 34g and 34h of the cap section 34Y interfere with the fitting section 72m of the bottle receiving section 72.

0144The ID chip (the information storage device) that is characteristic in the toner container 32Y (the removable device) according to the present first embodiment will be described below in detail.

0145On the end surface of the cap section 34Y, the ID chip 35 as the information storage device in which various electronic information is stored is installed at the position of a holding member 34k installed between the first positioning hole 34a and the second positioning hole 34b. The ID chip is configured to be connected to the connector 73e of the cap receiving section 73 in the state in which the cap section 34Y is mounted to the toner container storage unit 70 (the cap receiving section 73) (for example, see <figref idref="f0002">Figs. 3</figref>). Specifically, in the state in which the cap section 34Y is mounted on the toner container storage unit 70 (the cap receiving section 73), a plurality of metallic pads (metallic plates) of the ID chip come in contact with a plurality of body side terminals of the connector 73e. The ID chip performs communication (wire line communication) with the control unit 90 through the connector 73e as illustrated in <figref idref="f0002">Fig. 3</figref> in the state in which the cap section 34Y is held on the cap receiving section 73.

0146Referring to <figref idref="f0014">Fig. 21</figref>, in the present first embodiment, a holding mechanism installed in the toner container 32Y (the removable device) removably installed to the image forming apparatus body 100 includes the ID chip as the information storage device, the holding member 34k as the holding section, and the like. The ID chip as the information storage device held on the holding mechanism includes a substrate, an information storage unit, metallic pads as a plurality of terminals (metallic plates), and the like.

0147The information storage unit is an electronic circuit in which various information exchanged between the control unit 90 of the image forming apparatus body 100 and the toner container 32Y is stored. The information storage unit corresponds to an assembly of a memory IC, a condenser for noise reduction, a resistor, and the like. The information storage unit is disposed on the back surface side of the substrate (the side facing the end surface of the cap section 34Y) and electrically connected to all or some of the metallic pads as a plurality of metallic plates.

0148The metallic pads as the plurality of terminals come in contact with the plurality of body side terminals of the connector 73e installed in the cap receiving section 73 (the apparatus body 100), respectively, and exchange an electrical signal related to information with the image forming apparatus body 100 (the control unit 90). The plurality of metallic pads are disposed at the front surface side of the substrate (the side facing the cap receiving section 73). Further, the plurality of metallic pads are formed in a nearly rectangular shape and arrayed in a transverse direction thereof with a clearance therebetween (a Z direction (vertical direction).

0149The ID chip (the information storage device) having the above described configuration is held on the holding member 34k (the holding section) that is configured removably from the cap section 34Y.

0150The holding member 34k (the holding section) holds the contact type ID chip (the information storage device) to be able to move on a virtual plane (a virtual plane substantially orthogonal to) intersecting with the movement direction in which the metallic pads (terminals) approach and come in contact with the body side terminals.

0151Specifically, in the present first embodiment, the holding member holds the ID chip (the substrate) to be able to move on a virtual plane (an XZ plane) orthogonal to the attaching/detaching direction of the toner container 32Y to/from the image forming apparatus body 100. That is, the ID chip (the substrate) is configured to be able to move (about 1 mm) on the XZ plane freely to some extent in a state held by the holding member 34k (the cap section 34Y). Specifically, the ID chip (the substrate) is held loosely to some extent inside the box-like holding member 34k (the holding mechanism). That is, the ID chip is held with a predetermined gap between the ID chip and the side wall inside the holding member 34k. The ID chip is held such that a small clearance Δt (for example, "Δt+t" is about 0.85 to 1.05 mm) is formed in a ±Y direction on the thickness t (about 0.8 mm) of the substrate) inside the holding member 34k. For this reason, it is possible to make the substrate stand to orthogonally cross in the insertion direction of a positioning pin to some extent.

0152Through the above described configuration, even when the size of the image forming apparatus body 100 or the toner container 32Y decreases and so the plurality of metallic pads (terminals) on the substrate 35b are densely arranged so as to reduce the size of the ID chip installed thereon, a contact failure that is caused by a positioning failure between the plurality of metallic pads 35a and the body side terminal 73e2 of the connector 73e is difficult to occur regardless of whether or not a degree of dimension accuracy or a degree of assembly accuracy of an associated component is high or low.

0153The holding member 34k as the holding section is removably configured on the cap section 34Y and is a box-like member having an insertion opening 34k1, formed in the upper side thereof, through which the ID chip is inserted or separated.

0154In detail, when assembling the holding mechanism to the cap section 34Y, the ID chip (the information storage device) is first inserted into the holding member 34k through the insertion opening 34k1. Thereafter, the holding member 34k (the holding section) having the ID chip mounted thereon moves and is press-fitted into the convex section of the cap section 34Y. At this time, the holding member 34k is fixed and held at the position contacting a pedestal section 34q (disposed at the position not contacting the substrate) disposed in the convex section of the cap section 34Y. Further, when ejecting the ID chip 35 from the cap section 34Y, an operation is performed in a procedure reverse to the above described procedure. The pedestal section 34q is a rib standing in the mounting direction of the toner container 32Y (or toward the holding member 34k) inside the concave section of the cap section 34Y and disposed at the position other than a place into which the positioning pin of the connector 73e is to be inserted.

0155In the present first embodiment, the holding member 34k is press-fitted into and fixed to the concave section of the cap section 34Y, but the holding member 34k may be mounted on and screw-fixed to the concave section of the cap section 34Y. Specifically, a flaky rib having a hole in the side wall of the holding member 34k protrudes to form a female screw section in the end surface of the cap section 34Y. The holding member 34k is mounted on the concave section of the cap section 34Y, and in the state in which the flaky rib of the holding member 34k comes in contact with the end surface of the cap section 34Y, a screw is screwed into the female screw section of the cap section 34Y through the hole of the rib related to the holding member 34k. Even in this configuration, the holding member 34k can be comparatively easily attached to or detached from the cap section 34Y.

0156As described above, since the ID chip (the substrate) is configured to be attached to or detached from the cap section 34Y, efficiency of assembling the ID chip (the substrate) to the toner container 32Y as the removable device increases, and at the same time, efficiency of a disassembly operation of the ID chip (the substrate) when recycling the toner container 32Y increases. Particularly, in the present first embodiment, the substrate of the ID chip is a small substrate having the size of about 12 mm × 8 mm to 15 mm × 10 mm. If data input/output (data input/output when a probe terminal comes in contact with the metallic pad) is about to be performed in the state in which the substrate is mounted on the cap section 34Y in the manufacturing process, it may be difficult to do a work on the cap section 34Y of a complicated shape, and a process time may increase. Thus, in the present first embodiment, the ID chip (the substrate) is removably configured, and thus there is a great effect since a data input/output operation can be performed on the ID chip alone (or for each holding member 34k) if necessary.

0157In the cap section 34Y, formed is a standing member 34f that blocks the insertion opening 34k1 in the state in which the holding member 34k is mounted on the concave section.

0158Thus, prevented is a problem in that the ID chip falls off from the insertion opening 34k1 of the holding member 34k after the ID chip (the holding member 34k) is mounted on the cap section 34Y.

0159Referring to <figref idref="f0014">Fig. 21</figref>, inside the holding member 34k (the box-like member), formed are a first facing section 34k4 and a second facing section 34k5. The first facing section 34k4 faces a first plane of the substrate 35b (a surface where the plurality of metallic pads are disposed) and is formed to come in contact only with and slide on an outer peripheral area of the first plane where the metallic pads are not disposed so as not to interfere with the plurality of metallic pads. The second facing section 34k5 faces a second plane of the substrate 35b (a surface where the information storage unit 35c is disposed) and is formed to slide on part of the second plane so as not to interfere with the information storage unit. Thus, inside the holding member 34k, the ID chip can freely move on the XZ plane (can move to slide on the facing sections 34k4 and 34k5) without falling off from the holding member 34k, and without the metallic pads or the information storage unit getting damaged.

0160Further, openings 34k2 and 34k3 are formed in the front and back surfaces of the holding member 34k, respectively. The first opening 34k2 is formed to allow the plurality of metallic pads 35a to be exposed at the side facing the connector 73e even when the substrate moves in the XZ plane to some extent. Thus, in accompany with movement of the substrate in the XZ plane, the metallic pads and the body side terminals can be connected with (come in contact with) each other. Further, the second opening 34k3 to allow the information storage unit to be exposed at the side facing the concave section of the cap section 34Y even when the substrate moves on the XZ plane to some extent.

0161Referring to <figref idref="f0014">Fig. 21</figref>, the opening 34k2 formed in the front surface of the holding member 34k is formed such that the left side has a convex shape and the right side has a concave shape. Thus, an area encircled by a dotted line in <figref idref="f0014">Fig. 21</figref> functions as a hook (a stopper) for preventing the ID chip from falling off from the opening 34k2.

0162In the ID chip, the metallic pads are disposed in line in the Z direction on the first plane of the substrate. The metallic pad has a multi-layer structure having three layers of a copper layer, a nickel layer, and a metallic layer which are disposed in order from the substrate side, and the metallic layer as the surface layer is comparatively expensive but disposed to prevent oxidization. The metallic pad is formed by electric field evaporation on the substrate that is masked in advance.

0163As described above, since the ID chip is disposed be fixed between the first positioning hole 34a (the main reference) and the second positioning hole 34b (the sub reference), the position of the ID chip 35 with respect to the connector 73e of the cap receiving section 73 is decided with a high degree of accuracy. Thus, the communication failure caused by position misalignment between the connector 73e and the ID chip can be suppressed. Particularly, since the positioning direction of the cap section 34Y in the cap receiving section 73 (the arrangement direction of the positioning pins 73a and 73b and the positioning holes 34a and 34b) is the same as the positioning direction of the connector 73e and the substrate , the positioning operation of the toner container 32Y on the image forming apparatus body 100 contributes to making it easier to position of the substrate on the connector 73e. As a result, there is an effect in that the contact failure between the body side terminal 73e2 and the metallic pad is difficult to occur.

0164Further, a procedure in which components of the bottle receiving section 72 and the cap receiving section 73 are concerned with the cap section 34Y when the mounting operation of the toner container 32Y on the toner container storage unit 70 proceeds is as follows.

0165First, the cap section 34Y slides on the bottle receiving surface 72a, and thereafter, the guide rail section 34e of the cap section 34Y is fitted into the engaged groove 73m of the cap receiving section 73, the lateral protrusion 34c of the cap section 34Y is fitted into the lateral groove 73h and the groove section 73rl of the cap receiving section 73, and the posture of the cap section 34Y in the cap receiving section 73 in the vertical and horizontal directions is restricted. At this time, shaking of the cap section 34Y before being inserted into the cap receiving section 73 is prevented by the cap section sandwiching member 73r. The first positioning hole 34a of the cap section 34Y is fitted into the main reference pin 73a of the cap receiving section 73, and so positioning of the main reference is performed. Thereafter, the second positioning hole 34b of the cap section 34Y is fitted into the sub reference pin 73b of the cap receiving section 73, and so main and sub positioning is completed. Further, while the positioning is being completed, the contact state between the stopper section 34d22 of the shutter member 34d of the cap section 34Y and the contact section 34n5 is released by the stopper release urging section 72b, and the postures of the shutter member 34d and the cap section 34Y in the cap receiving section 73 are decided by a body side shutter closing mechanism (not shown). In this state, the opening operation of the shutter member 34d is performed. The toner discharge opening W opened in the cap section 34Y is communicated with the toner feeding opening 73w of the cap receiving section 73. The position of the ID chip in the cap section 34Y is decided, and the plurality of metallic pads of the ID chip come in contact with the plurality of body side terminals of the connector 73e, respectively, with a high degree of certainty. Thus, setting of the cap section 34Y (the toner container 32Y) in the cap receiving section 73 (the toner container storage unit 70) is completed. At this time, the gear 33c of the container body 33Y meshes with the driving gear 81 of the apparatus body 100.

0166Meanwhile, when extracting (removing) the toner container 32Y from the toner container storage unit 70 (the cap receiving section 73), the procedure reverse to the procedure at the time of mounting is performed.

0167As described above, in the image forming apparatus according to the present first embodiment, as the user performs one action of moving the toner container 32Y in the longitudinal direction while gripping the gripping section 33d (excluding the opening/closing operation of the body cover), the opening/closing operation of the toner discharge opening W by the shutter member 34d is also performed in conjunction with the operation, and the mounting operation and the removing operation of the toner container 32Y is completed.

0168Further, in the toner container 32Y according to the present first embodiment, the toner discharge opening W having the comparatively large opening area size is disposed downward in the vertical direction, and so the toner can be discharged such that it falls directly from the toner discharge opening W by its own weight.

0169Further, since the toner container 32Y is not placed from above the toner container storage unit 70 (the apparatus body 100) but attached to or detached from the front surface of the toner container storage unit 70 (the apparatus body 100), a degree of freedom of the layout above the toner container storage unit 70 increases. For example, even when a scanner (a document reading section) is disposed directly above the toner feeding device, operability or workability at the time of attachment/detachment of the toner container 32Y does not deteriorate.

0170Further, since the toner container 32Y is disposed in the apparatus body 100 such that the longitudinal direction is the horizontal direction, it does not have any influence on the overall layout of the image forming apparatus body 100 in the height direction. The toner capacity of the toner container 32Y increases, and so the replacement frequency can be reduced.

0171As described above, in the present first embodiment, the contact-type ID chip (the information storage device) is held on the holding member 34k (the holding section) to be movable on the virtual plane that is substantially orthogonal to the movement direction in which the metallic pads (terminals) approach and come in contact with the body side terminals. Thus, even when the contact-type ID chip (the information storage device) is installed in the toner container 32Y (the removable device) installed removably on the image forming apparatus body 100, the contact failure caused by the positioning failure with the body side terminals of the connector 73e of the image forming apparatus body 100 is difficult to occur.

Second Embodiment

0172A second embodiment of the present invention will be described in detail with reference to <figref idref="f0015 f0016">Figs. 23 to 25</figref>.

0173<figref idref="f0015">Fig. 23</figref> is a schematic cross sectional view illustrating a toner container 232Y according to the present second embodiment. <figref idref="f0015">Fig. 24</figref> is a back view illustrating a cap section 234Y of a toner container 232Y. <figref idref="f0016">Fig. 25</figref> is a perspective view illustrating a holding cover 234k8 that is fitted into a holding member 234k.

0174The toner container 232Y according to the present second embodiment is different from the first embodiment in configuration of the holding member 234k in a holding mechanism for holding the information storage device.

0175Similarly to the first embodiment, the toner container 232Y according to the present second embodiment includes the container body 33Y and a cap section 234Y. The ID chip 35 as the information storage device is removably installed in the cap section 234Y.

0176In the cap section 234Y according to the present second embodiment, the holding member 234k in which the opening 34k2 exposing part of the ID chip 35 is formed is integrally formed.

0177The ID chip 35 is inserted into from the inner side of the cap section 234Y in a direction of an arrow in <figref idref="f0015">Fig. 23</figref> and set at the position of the holding member 234k. In the state in which the ID chip 35 is set at the position of the holding member 234k, the holding cover 234k8 is inserted into from the inner side of the cap section 234Y in the direction of the arrow in <figref idref="f0015">Fig. 23</figref> and fitted into the holding member 234k (the state of <figref idref="f0015">Fig. 24</figref>).

0178In the holding cover 234k8, a pedestal section 234q that is fitted into the holding member 234k is disposed so as not to come in contact with the substrate 35b.

0179Further, the holding cover 234k8 is tightly installed without a clearance with the inner wall of the cap section 234Y so as to prevent the toner leaking from the toner container 232Y from sticking to the ID chip 35.

0180Even in the present second embodiment, the ID chip 35 (the substrate 35b) is held in the holding member 234k (and the holding cover 234k8) to be movable on the XZ plane.

0181As described above, similarly to the first embodiment, even in the present second embodiment, the contact-type ID chip 35 (the information storage device) is held on the holding member 234k (the holding section) to be movable on the virtual plane that is substantially orthogonal to the movement direction in which the metallic pads 35a (terminals) approach and come in contact with body side terminals 73e2. Thus, even when the contact-type ID chip 35 (the information storage device) is installed in the toner container 232Y (the removable device) installed removably on the image forming apparatus body 100, the contact failure caused by the positioning failure with the body side terminals 73e2 of the connector 73e of the image forming apparatus body 100 is difficult to occur.

Third Embodiment

0182A third embodiment of the present invention will be described in detail with respect to a state in which the information storage device 35 of a toner container 332Y according to the present third embodiment is set to the connector 73e of the cap receiving section 73

0183The present third embodiment is different from the first embodiment in that a cushion material is installed inside the holding member 34k and a configuration of a wall section of a cap receiving section 373 is different.

0184Similarly to the above embodiments, a toner container 332Y according to the present third embodiment includes a container body 33Y and the cap section 34Y. The ID chip as the information storage device is removably installed in the cap section 34Y. Further, the ID chip 35 is held in the holding member 34k to be movable in the XZ plane.

0185In the present third embodiment, the cushion material is disposed between the inner wall (the second facing section 34k5) of the holding member 34k and the substrate 35b. The cushion material 334k10 is made of an elastic material such as foamed polyurethane, and a low frictional material adheres to a section facing the substrate 35b.

0186In the present third embodiment, the wall section of the cap receiving section 373 is installed to surround four sides of the connector 73e. In order to cope with it, the concave section for avoiding interference with the wall section is formed in the cap section 34Y. By disposing the wall section 373g as described above, even if the toner is scattered from the vicinity of the toner discharge opening W of the toner container 332Y to the outside, the scattered toner is difficult to stick directly to the connector 73e or the ID chip 35. Thus, the contact failure (the communication failure) between the connector 73e (the body side terminal) and the ID chip 35 (the metallic pad 35a) caused by the scattered toner can be prevented.

0187As described above, similarly to the above embodiments, even in the present third embodiment, the contact-type ID chip (the information storage device) is held on the holding member 34k (the holding section) to be movable on the virtual plane that is substantially orthogonal to the movement direction in which the metallic pads (terminals) approach and come in contact with body side terminals 73e2. Thus, even when the contact-type ID chip 35 (the information storage device) is installed in the toner container 332Y (the removable device) installed removably on the image forming apparatus body 100, the contact failure caused by the positioning failure with the body side terminals of the connector 73e of the image forming apparatus body 100 is difficult to occur.

Fourth Embodiment

0188A fourth embodiment of the present invention will be described in detail with reference to <figref idref="f0016 f0017 f0018 f0019">Figs. 26 to 31</figref>.

0189<figref idref="f0016">Fig. 26</figref> is a three-plane view illustrating a substrate of an information storage device 535 according to the present fourth embodiment. <figref idref="f0017">Fig. 27</figref> is a perspective view illustrating the information storage device 535, a holding member 534k (534k25), and a connector 573e and is a perspective view illustrating a relative positional relation of the three members 534k (534k25), 535, and 573e. <figref idref="f0017">Fig. 28</figref> is a perspective view illustrating a condition in which the information storage device 535 is engaged with the connector 573e. <figref idref="f0018">Figs. 29A and 29B</figref> are circuit diagrams illustrating an electric circuit of the information storage device 535 and an electric circuit of the connector 573e. <figref idref="f0019">Fig. 30A</figref> is a front view illustrating a condition in which the information storage device 535 is held on the connector 573e, and <figref idref="f0019">Fig. 30B</figref> is a front view illustrating a condition in which the information storage device 535 is rotating on a positioning hole 535b21. <figref idref="f0019">Fig. 31</figref> is a view illustrating the information storage device 535 that comes in contact with a probe 400 in an inspection process when manufactured in a factory.

0190The present fourth embodiment corresponds to the first to third embodiments and according to the fourth embodiment only one positioning hole 535b21 is formed in the substrate 535b of the information storage device 535, and the positioning hole 535b21 is disposed between a plurality of rectangular metallic pads 35al, 35a2, and 35a3 (metallic pads).

0191Referring to <figref idref="f0016">Fig. 26</figref>, the ID chip 535 as the information storage device according to the present fourth embodiment has the positioning hole 535b21 that is formed at the upper position in the vertical direction further than the gravity center of the substrate 535b. An earth metallic terminal 535d is disposed on an inner surface of the hole 535b21 and around the hole 535b21. In the present fourth embodiment, the metallic terminal 535d formed on the surface of the substrate 535b includes two protruding sections 535d1 that are formed to extend from a ring-like section in the horizontal direction.

0192Further, the rectangular metallic pad 35a1 is installed above the positioning hole 535b21 in the vertical direction, and the two rectangular metallic pads 35a2 and 35a3 are installed below the positioning hole 535b21 in the vertical direction.

0193Further, on the back side of the substrate 535b (the side facing the cap section 34Y), a protection member 535e that is made of a resin material having a substantially hemispherical shape or a shape of an inverted pan such as epoxy and covers the information storage unit is disposed. In the present fourth embodiment, although it depends on the shape of the substrate 535b or the configuration/arrangement of the back surface such as the protection member 535e, by disposing the hole 535b21 above the protection member 535e that may include the information storage unit such an integrated circuit (IC) thereinside and is a heaviest component, a positional relation in which the hole 535b21 is installed vertically above the gravity center of the ID chip 535 is implemented. Specifically, referring to <figref idref="f0019">Fig. 30A</figref>, the ID chip 535 (the information storage device) according to the present fourth embodiment is formed so that the center position of the positioning hole 535b21 is at the distance Za above the gravity center of the ID chip 535.

0194Referring to <figref idref="f0017">Fig. 27</figref>, the connector 573e includes a connector body 573e21 that is made of resin and is a hollow box, and a positioning pin 573e23 (a positioning protruding section) that is a hollow cylinder and having a tapered tip is disposed on the connector body 573e21 to stand in the horizontal direction. A body side earth terminal 573e25 (an earth terminal) is installed in the positioning pin 573e23. The body side earth terminal 573e25 is a plat-like (or linear) metallic member, partially stored in the hollow section of the positioning pin 573e23 formed integrally with a connector 573e21, and has a curved section that is exposed from a slit-like opening formed in part of the circumferential surface of the hollow cylinder and protrudes from the cylindrical outer circumferential surface. Further, one body side terminal 573e2 is installed vertically above the positioning pin 573e23 (the body side earth terminal 573e25), and two body side terminals 573e2 are installed vertically below the positioning pin 573e23 (the body side earth terminal 573e25). The body side terminals 573e2 are plat-like (or linear) metallic members and are formed almost in the same manner as in the above embodiments except that the installation position is different.

0195Further, swing preventing members 573e24 as a pair of guiding members protrude from the right and left sides of the positioning pin 573e23. The guiding members include a pair of plates whose tips have inner tapered surfaces facing each other and the guide the both sides of the ID chip 535 to be upright.

0196Similarly to the above embodiments, the holding member 534k (the holding section) is fixed to a toner container (532Y) and positioned between the connector 573e and the ID chip 535. The holding member 534k has a function for movably holding the ID chip 35. Referring to <figref idref="f0017">Fig. 27</figref>, the holding member 534k according to the present fourth embodiment has a first facing section 534k24 that is configured to be linearly symmetrical on an center axis in the vertical direction and is formed to cover an area from two upper corners of the ID chip 535 to both sides of the hole 535b21. The holding member 534k is formed to cover the lower section of the substrate 535b further than the lowest metallic pad 35a3, and through the above described configuration, the ID chip 535 is prevented from falling from the holding member 534k.

0197Further, in the holding member 534k, the first facing section 534k24 including an area facing the four body side terminals 573e2 and 573e25 of the connector 573e is formed of an opening. Particularly, in the holding member 534k, formed is an opening 534k22 that is opened up to a section corresponding to a pair of swing preventing members 573e24. At the time of mounting of the toner container 532Y, the positioning pin 573e23 is inserted into the opening 534k22, and thereafter the pair of swing preventing members 573e24 (the pair of guiding members) is also inserted into the holding member 534k through the opening 534k22.

0198A second facing section 534k25 of a flat plate form facing the back surface of the ID chip 535 (the side of the holding member 535e) is fixed to the holding member 534k by adhesion or a snap fit (not shown). The second facing section 534k25 includes a opening 534k26 similarly to the opening 534k22 and so can avoid interference with the holding members 535e or the inserted swing preventing member 573e24. Meanwhile, when the positioning pin 573e23 is inserted into the hole 535b21 of the ID chip 535, the ID chip 535 is pushed, but since the second facing section 534k25 supports the substrate 535b from the rear side, the contact condition between the terminals can be maintained.

0199<figref idref="f0017">Fig. 28</figref> is a schematic perspective view illustrating the condition in which positioning of the connector 573e and the ID chip 535 at the apparatus body 100 side is completed. The condition is that the toner container 532Y according to the fourth embodiment is mounted on the apparatus body 100, and the body side terminals 573e2 and 573e25 are connected with the abovementioned metallic pads 35a1 to 35a3 and the earth terminal 535d. In <figref idref="f0017">Fig. 28</figref>, for the sake of easy understanding, the holding member 534k (534k25) between the connector 573e and the ID chip 535 and the metallic pads 35a1 to 35a3 are omitted.

0200When mounting the toner container on the image forming apparatus body, the main and subordinate positioning holes 34a and 34b of the cap section are fitted into the main and subordinate positioning pins 73a and 73b of the cap receiving section 73, and positioning of the cap section is performed. This mounting operation is the same as the mounting operation of the first embodiment. After the position of the cap section is decided, the hole 535b21 of the ID chip 535 is fitted into the positioning pin 573e23 to be picked up by the tapered tip of the positioning pin 573e23 of the connector 573e. As a result, the position of the ID chip 535 in the horizontal direction and the vertical direction is decided at the same time. Further, as illustrated in <figref idref="f0019">Fig. 30A</figref>, the swing preventing members 573e24 (the pair of guiding members) of the connector 573e that includes the pair of plates are inserted into the lower edge portions that are at both right and left sides of the substrate 535b and at the lower area further than the center of the hole 535b21. At this time, it is a possible case that the posture of the ID chip is misaligned as illustrated in <figref idref="f0019">Fig. 30B</figref>. Even in this case, if the inner tapered surfaces of the plates comes in contact with the lower edge portions, it causes the substrate 535b to rotate in a direction for having the posture to be vertical by the action of the gravity center, and the misalignment of the posture in the rotation direction (rotation in a direction of an arrow illustrated in <figref idref="f0019">Fig. 30B</figref>) is corrected (it becomes a condition of <figref idref="f0019">Fig. 30A</figref>). Thus, positioning of the ID chip 535 is completed. At this time, part of the earth terminal 535d of the ID chip 535 (a section corresponding to the inner surface of the hole 535b21) comes in contact with the body side earth terminal 573e25 of the positioning pin 573e23 illustrated in <figref idref="f0017">Fig. 28</figref>, and the ID chip 535 is earthed (conduction). Further, after the earth is connected the three metallic pads 35a (35a1, 35a2, and 35a3) of the ID chip 535 also come in contact with the three body side terminals 573e2 of the connector 573e, respectively, and so information can be transmitted between the ID chip 535 and the body side connector 573e (the apparatus body 100).

0201As described above, in the present fourth embodiment, a high-accuracy positioning mechanism is implemented by an inexpensive configuration by adding various ideas such as the following ideas (1) to (5). <ol id="ol0001" compact="compact"><li>(1) It is only one positioning hole 535b21 for ID chip 535 to need to be positioned. Thus, the drill processing time of the substrate 535b in the manufacturing become shorter than two positioning holes type's ID chip, and the manufacturing cost can be reduced.</li><li>(2) The body side earth terminal 573e25 is integrally installed on the side circumferential surface of the positioning pin 573e23. Thus, the distance between the positioning pin 573e23 and the body side earth terminal 573e25 can become real zero (0), and a degree of position accuracy of the earth terminal 535d with respect to the body side terminal 573e25 can increase.</li><li>(3) In the mounting completion condition of <figref idref="f0017">Fig. 28</figref>, the positional relation between the positioning hole 535b21 and the curved sections of the body side terminals 573e2 is adjusted so as to match the hole center of the hole 535b21 with the line that connects the curved sections (connection sections) of the three body side terminals 573e2 at the connector 573e side. Thus, the distance in the horizontal direction from the hole 535b21 as the positioning section to the contact sections can be reduced to nearly 0 mm. As a result, when the three metallic pads 35a1, 35a2, and 35a3 come in contact with the body side terminals 573e2, a degree of position accuracy is improved.</li><li>(4) A plurality of metallic pads 35a1, 35a2, and 35a3 are lined, and the positioning hole 535b21 is arranged at either of two spaces formed between two of the three lined pads. Thus, compared to another arrangement type's ID chip in which the hole is disposed at the lower side or the upper side outside a row of the plurality of metallic pads 35a1, 35a2, and 35a3, the distance (that corresponds to the arm length of the pendulum) from the center of the positioning hole 535b21 to the farthest metallic pad 35a can be reduced. Specifically, on the another type, the arm length becomes the distance corresponding to the three metallic pads from the hole center. However, in the present fourth embodiment, the arm length can be the distance corresponding to the two metallic pads. Since the arm length of the pendulum is short, even if the parallelism of the farthest metallic pad 35a on the body side terminal 73e2 is misaligned due to, for example, variability in the mass production, the misalignment can be suppressed to a minimum.</li><li>(5) When a user stores the toner container in some space out of the image forming apparatus, an alien substance may enter the holding member 534k and so the nipping position between the ID chip 535 and the facing sections 534k24 and 534k25 may remain misaligned. On this problem, in the present fourth embodiment, the positional relation between the hole 535b21 and the gravity center of the ID chip 535 is improved. The hole 535b21 is arranged vertically above the gravity center of the ID chip 535. Thus, when the pair of the swing preventing members 573e24 is inserted below the hole 535b21 that is the rotation center, the substrate 535b contacts with the tapered tips of the swing preventing members 573e24. Then, the posture of the ID chip 535 is urged to rotate in the vertical direction by the force of gravity and is corrected to be upright. As a result, even if there is one positioning hole 535b21, a degree of position accuracy of the plurality of metallic pads 35a1, 35a2, and 35a3 on the plurality of body side terminals 573e2 can be increased at the same time.</li></ol>

0202Depending on a number of produced planned to be made, there is a possibility that it is determined that the conduction inspection device has a margin in durability. In this case, inspection can be conducted using a inspection device having a configuration similar to the connector of the image forming apparatus body 100, i.e. by inserting a conduction probe into the hole in which the earth terminal 535d is formed. In this case, as in a modification of the ID chip illustrated in <figref idref="f0050">Fig. 71</figref>, a circular earth terminal that does not include the protruding sections 535d1 may be employed. The same also applies to a case in which a manufacturing method in which the conduction inspection is omitted based on improvement in production process is employed. With this modification, the area of the metallic members can be reduced and the manufacturing cost can be reduced. In <figref idref="f0050">fig. 71</figref>, the ID chip is illustrated assumed as being of a type in which no protection member is provided on the IC circuit on the back surface and, therefore, the IC circuit is exposed. If the manufacturing environment, etc. allows absence of the protection member, such an ID chip is useful for cost reduction. Although any layout is available so long as the IC circuit keeps out from both the right-and-left areas for smooth sliding, it is preferable to arrange a relatively large IC in a lower section so that the center of gravity is located at a lower position.

0203Moreover, if the earth conduction probe is of one pin, it is allowable to provide, as illustrated in Fig. 72A, one protruding section with which the earth prove 401 comes in contact. For easy earth inspection, the modification illustrated in Fig. 72B that has a size-increased probe contacting section may be employed. This is useful in particular in a case of manual inspection. The modification illustrated in Fig. 72C that has not a circular frame but a square frame may also be employed. Any of the modifications of Figs. 72A, 72B, and 72C are designed freely so long as the outer circumferential area of the terminal formed in the hole keeps out from both the right-and-left sliding areas. The back surfaces of the ID chips of Figs. 72A, 72B, and 72C can be either covered by the protection member or uncovered.

0204As described in the above described ideas (1) to (5), each of the five ideas can provide each function effect, and even if an inexpensive configuration in which the area size of the metallic pad 35a becomes minimal is employed, it is possible to highly increase a degree of positioning accuracy between the plurality of terminals 35a1, 35a2, and 35a3 and 535d including the earth terminal at the ID chip 535 and the plurality of body side terminals 573e2 and 573e25.

0205Firstly, each of the metallic pads 35a1, 35a2, and 35a3 are described. The metallic pad 35a1, which is at the highest level, receives a clock signal for communication control. While a serial communication method that is low-speed but low-cost because of sequential data transfer is employed and an I2C (Inter-Integrated Circuit) is employed as a serial bus, The metallic pad 35a1 forms a signal line to which a serial clock (SCL) is input when the signal line is connected to the body side connector. The metallic pad 35a1 corresponds to a terminal to which a clock-signal is input. Because a clock signal flows in one way, it is expected that the possibility that the ID chip 535 breaks down if to a short circuit occurs between the metallic pad 35a1 and a later-described Vcc (the power supply or the metallic pad 35a3) than between the other terminals and the Vcc. Therefore, to prevent break down of the ID chip 535, the metallic pad 35a1 is arranged more distant from the Vcc. This is because the possibility of break down is lower if a short circuit occurs between the metallic pad 35a1 and the GND (the earth terminal 535d).

0206The metallic pad 35a2 also employs a serial communication method, employing an I2C as a serial bus, and forms a signal line to which serial data (SDA) is input/output when the signal line is connected to the body side connector. Because this pad has a bidirectional input/output mechanism, the possibility that the ID chip 535 breaks down due to a short circuit is lower than the possibility due to the one-way input metallic pad 35a1.

0207The metallic pad 35a3 forms a power input portion (Vcc) to which a 5V voltage or a 3.3V voltage is input when it is connected to the body side connector. To decrease the risk of break down of the entire device due to a short circuit between the power supply and the GND, the serial-data input terminal (the metallic pad 35a2) is arranged between the GND (the earth terminal 535d) and the metallic pad 35a3. As illustrated in <figref idref="f0016">Fig. 26</figref>, the Vcc or the metallic pad 35a3 overlaps with the protection member 535e that is on the back side of the ID chip in such a manner that the substrate 535b is between them; therefore, the metallic pad 35a3 is close to an IC driving circuit included in the protection member 535e. With this arrangement, a short and thick line can be used as a power-supply line, which enables stable power-supply operations (=suppression of malfunction due to noises).

0208Secondly, ideas for earth are described. In the mounting operation of the toner container, the earth terminal 535d of the ID chip 535 comes in contact with the body side earth terminal 573e25 of the positioning pin 573e23 (the connector 573e), and then the three metallic pads 35al, 35a2, and 35a3 of the ID chip 535 start to come in contact with the three body side terminals 573e2 of the connector 573e. That is, in the detaching operation of the toner container 532Y, contact between the three metallic pads 35a1, 35a2, and 35a3 of the ID chip 535 and the three body side terminals 573e2 of the connector is released, and then the earth terminal 535d of the ID chip 535 is released from the contact condition with (separated from) the body side earth terminal 573e25 of the positioning pin 573e23 (the connector 573e). Specifically, referring to <figref idref="f0018">Fig. 29A</figref>, the body side earth terminal 573e25 in the connector 573e has the contact start position closer to the ID chip 535 side than the three body side terminals 573e2.

0209Through the above described configuration, in the mounting operation of the toner container, the metallic pads 35a1, 35a2, and 35a3 always start to be connected with the body side terminals 573e2 in the condition in which the ID chip 535 is earthed, and in the detaching operation of the toner container 532Y, the metallic pads 35al, 35a2, and 35a3 always start to be separated from (released from the contact condition with) the body side terminals 573e2 in the condition in which the ID chip 535 is earthed. Thus, an electric circuit at the ID chip 535 is prevented from being not earthed and so becoming an electrically floating condition, and so the ID chip 535 is difficult to be electrically damaged.

0210In detail, when the electric circuit at the ID chip 535 is not earthed and becomes an electrically floating condition, the electrical circuit becomes a condition that is earthed with very large impendence. If static electricity, which is generated when the metallic pads 535a come in contact with or are separated from the body side terminals 573e2, slightly flows to the electric circuit, a high voltage that is the same as impedance is applied to the current is generated. The high voltage causes insulation breakdown inside the IC in the ID chip 535, and thus the IC is broken. This problem easily occurs when the contact start positions of the three body side terminals 573e2 and the body side earth terminal 573e25 on the ID chip 535 are formed at the same position, with respect to the connector 573e, as illustrated in <figref idref="f0018">Fig. 29B</figref>.

0211On the other hand, in the present fourth embodiment, the curved section of the body side earth terminal 573e25 exposed from the slit-like opening of the positioning pin 573e23 is disposed to be closer to the ID chip 535 than the curved section of the body side terminal 73e2 that most protrudes to the ID chip 535 side. Thus, since the earth is first connected, and at the time of separation and the earth is lastly disconnected at the time of contact, the impedance is always theoretically zero, and even if static electricity flows to the inside of the electric circuit, insulation breakdown inside the IC is prevented.

0212Further, in the ID chip 535 (the information storage device) according to the present fourth embodiment, the two protruding sections 535d1 are disposed on part of the outer circumference of the earth terminal 535d as described above with reference to <figref idref="f0016">Fig. 26</figref>.

0213Since the protruding sections 535d1 are disposed on the front surface of the substrate 535b of the ID chip 535 as described above, in the inspection process (a process of inspecting whether or not the ID chip 535 is defective) at the time of manufacturing in a factory, an operation of contacting a conduction inspection probe can be easily performed. In detail, as illustrated in <figref idref="f0019">Fig. 31</figref>, leading ends of a plurality of probes 401 of a conduction inspection device 400 are pressed downward against the metallic pads 35a and the earth terminal 535d of the ID chip 535 placed on an inspection table. At this time, since the protruding section 535d1 of the earth terminal 535d has an area that can sufficiently come in contact with the leading ends of the probes 401, a conduction inspection failure caused by a contact failure of the probes 401 can be prevented. Further, since conduction inspection is performed by pressing the leading end sections of the probes 401 downward against the earth terminal 535d (the protruding section 535d1), compared to when conduction inspection is performed by inserting the probes 401 into the hole 535b21, a resistance characteristic of the probes 401 that are repetitively used for inspection can be improved, and a problem in that the hole 535b21 of the ID chip 535 wears by conduction inspection can be prevented.

0214In a surplus space broadening in a wedge form between the annular earth terminal 535d and the rectangular metallic pad 35a1, 35a2, the protruding section 535d1 has a horizontal direction boundary (boundary line) that comes in contact with the annular outer circumference and is disposed to be parallel to the metallic pads 35a1, 35a2, and 35a3. Thus, the protruding section 535d1 does not protrude in the vertical direction, the protruding section 535d1 can be prevented from protruding to the left and sliding areas of the substrate 535b that slides against the first facing section 534k24 (protruding in the horizontal direction). As a result, the size of the substrate 535b does not increase, and at the time of manufacturing, it is possible to obtain as many substrates 535b as possible from a substrate material having the standard size. Further, the cost of the ID chip 535 can be suppressed from increasing.

0215As described above, similarly to the above embodiments, even in the present fourth embodiment, the contact-type ID chip 535 (the information storage device) is held on the holding member 534k (the holding section) to be movable on the virtual plane that is substantially orthogonal to the movement direction in which the metallic pads 35a1, 35a2, and 35a3 (terminals) approach and come in contact with body side terminals 573e2. Thus, even when the contact-type ID chip 535 (the information storage device) is installed in the toner container 532Y (the removable device) installed removably on the image forming apparatus body 100, the contact failure caused by the positioning failure with the body side terminals 573e2 of the connector 573e is difficult to occur.

0216Further, in the present fourth embodiment, even when the contact-type ID chip 535 (the information storage device) is installed in the toner container 532Y (the removable device) installed removable on the image forming apparatus body 100, since the earth terminal 535d that is engaged with the body side earth terminal 573e25 formed in the positioning pin 573e23 (the protruding section) of the connector 573e (the image forming apparatus body 100) is formed in one hole 535b21 formed in the substrate 535b of the ID chip 535, the ID chip 535 is difficult to be electrically damaged.

Fifth Embodiment

0217A fifth embodiment of the present invention will be described in detail with reference to <figref idref="f0020 f0021 f0022 f0023 f0024">Figs. 32A to 37C</figref>.

0218<figref idref="f0020">Figs. 32A and 32B</figref> are perspective views illustrating a toner container 632Y according to a fifth embodiment. Particularly, <figref idref="f0020">Fig. 32A</figref> is an exploded view illustrating a state in which the ID chip 535 described in the fourth embodiment is not mounted, and <figref idref="f0020">Fig. 32B</figref> is a view illustrating a state in which the ID chip 535 is mounted. <figref idref="f0015">Fig. 23</figref> is a front view illustrating the toner container 632Y in which a face plate 634p is not installed. <figref idref="f0015">Fig. 24</figref> is a cross-sectional view illustrating a main part of the toner container 632Y in which the ID chip 535 and the face plate 634p are installed. <figref idref="f0016">Fig. 25</figref> is a view illustrating a state in which the ID chip 535 is inserted into the connector 573 e.

0219In the present fifth embodiment, the ID chip 535 as the information storage device is the same as in the fourth embodiment. The present fifth embodiment is different from the fourth embodiment in that the ID chip 535 is loosely held in a concave section disposed in a cap section 634Y and movably covered by the face plate 634p, and the remaining configuration is the same as in the fourth embodiment.

0220Similarly to the above embodiments, the toner container 632Y according to the present fifth embodiment also includes the container body 33Y and the cap section 634Y. The ID chip 535 as the information storage device is removably installed in the cap section 634Y.

0221Referring to <figref idref="f0020">Figs. 32A and 32B</figref>, in the present fifth embodiment, the ID chip 535 is not installed in the cap section 534Y in a state in which it is loosely inserted into the holding member 534k, and the falling prevention face plate 634p is screw-coupled to the cap section 634Y in a state in which the ID chip 535 is loosely held in the concave section (in which a pedestal section 634q is formed) formed in the cap section 634Y.

0222In detail, referring to <figref idref="f0020">Fig. 32A</figref> and <figref idref="f0021">Fig. 33</figref>, the concave section for holding the ID chip 535 to be movable in the XZ plane is formed on the end surface of the cap section 634Y. In the concave section, formed is the pedestal section 634q that comes in surface contact with part of the ID chip 535. In the state in which the ID chip 535 is loosely held in the concave section of the cap section 634Y, the face plate 634p for preventing the ID chip 535 from falling from the concave section is attached. Referring to <figref idref="f0020">Fig. 32B</figref>, <figref idref="f0021">Fig. 33</figref>, and <figref idref="f0022">Fig. 34</figref>, the face plate 634p is screw-coupled to come in contact with part of the substrate 35b of the ID chip 35 in the state in which the metallic pads 35a1, 35a2, and 35a3, the positioning hole 535b21 (the earth terminal 535d), and the like of the ID chip 535 formed similarly to the fourth embodiment are exposed.

0223In further detail, in the cap section 634Y, a positioning pin 634s1 for positioning the face plate 634p is formed on the right side of the concave section, and a screw hole 634s2 for screw-fixing the face plate 634p is formed on the left of the concave section with the concave section interposed therebetween. Meanwhile, in the face plate 634p, a positioning hole 634pl is formed at the position corresponding to the positioning pin 634s1, and a hole 634p2 through which a screw 680 passes is formed at the position corresponding to the screw hole 634s2. In the lower section of the face plate 634p, a contact section 634p3 that comes in contact with the outer circumferential edge of the second positioning hole 34b and functions as a rotation stopper is formed. The position of the face plate 634p with respect to the cap section 634Y is decided by the positioning hole 634p1 and the contact section 634p3 for rotation stopping. The screw 680 is screwed into the screw hole 634s2 formed in the cap section 634Y through the hole 634p2 formed in the face plate 634p, and so the face plate 634p is fixed to the cap section 634Y. Thus, the ID chip 535 does not fall from the cap section 634Y and is held on the cap section 634Y to be movable in the XZ plane. Referring to <figref idref="f0022">Fig. 35</figref>, similarly to the fourth embodiment, in accompany with the mounting operation of the toner container 632Y, the positioning hole 535b21 (the earth terminal 535d) of the ID chip 535 is engaged with the positioning pin 573e23 (the body side earth terminal 573e25) of the connector 573e of the apparatus body 100, thereafter the body side terminal 573e2 of the connector 573e comes in contact with the metallic pads 35a1, 35a2, and 35a3 of the ID chip 535, and so electrical contact between the connector 573e and the ID chip 535 is completed. In this case, since the ID chip 535 in the cap section 634Y of the toner container 632Y is held to be movable in the XZ plane, similarly to the above embodiments, the contact failure caused by the positioning failure with the body side terminals 73e2 and 573e25 of the connector 573e of the apparatus body 100 is difficult to occur. In the normal state, the ID chip 535 remains down to the lower side of the concave section of the cap section 534Y due to gravity, and the center position of the hole 535b21 of the ID chip 535 is misaligned downward on the axial center position of the positioning pin 573e23 like the most left one among the three ID chips 535 illustrated in <figref idref="f0022">Fig. 35</figref>.

0224Then, when the mounting operation of the toner container 632Y starts and the ID chip 535 comes in contact with the positioning pin 573e23, the ID chip 535 moves upward (in the Z direction) (is scooped up) such that the hole 535b21 follows the tapered leading end section of the positioning pin 573e23, the hole 535b21 is fitted into the positioning pin 573e23, and finally the body side terminals 573e2 comes in contact with the metallic pads 35al, 35a2, and 35a3.

0225In the present fifth embodiment, the face plate 634p has been fixed (screw-coupled) to the cap section 34Y by the screw 680.

0226On the other hand, as illustrated in <figref idref="f0023">Figs.36A and 36B</figref>, a face plate 734p may be fixed to a cap section 734Y by snap fit fixing. In detail, as illustrated in <figref idref="f0023">Fig. 36A</figref>, a plurality of snap fit fixing engaging section 734p2 are formed on the outer circumferential section of the face plate 734p, and snap fit fixing engaged sections 734s2 are formed at the positions of the cap section 734Y corresponding thereto. As illustrated in <figref idref="f0023">Fig. 36B</figref>, in the state in which the ID chip 535 is loosely inserted into the concave section of the cap section 734Y, the face plate 734p is snap fit-fixed to the cap section 734Y. In further detail, while aligning a hole 734p3 formed in the face plate 734p with a positioning boss section 734s3 formed in the cap section 734Y, the engaging section 734p2 of the face plate 734p is engaged with the engaged section 734s2 of the cap section 734Y, and the face plate 734p is positioned and fixed to the cap section 734Y. Even in the case of this configuration, the same effect as in the fifth embodiment can be obtained.

0227Further, in the present fifth embodiment, since replacement can be made again even after the face plate 634p (or the face plate 734p illustrated in <figref idref="f0023">Figs. 36A and 36B</figref>) is assembled, the toner container can be manufactured by a procedure in which the toner container and the face plate manufactured by a foreign partner company are first imported, and then, within the country, after or before a process of filling the toner container with the toner, the ID chip 535 purchased from another company is assembled, and toner information is input to the ID chip 535. Thus, the manufacturing process of the toner container can be effectively performed.

0228Further, a recycling process of collecting the used toner container from the market and filling the toner again after cleaning it may be performed by a procedure of replacing the ID chip 535 or removing the ID chip 535 from the toner container, rewriting information, and mounting the ID chip 535 on the cap section again. Thus, the reusing process of the toner container can be effectively performed.

0229However, referring to <figref idref="f0024">Fig. 37C</figref> (that is a cross-sectional view illustrating a cap section 834Y on which the ID chip 535 is mounted), when it is desired to increase a assembly strength between a face plate 834p and a cap section 834Y without needing to remove the ID chip 535, only the positioning boss 734s3 (for example, see <figref idref="f0023">Figs. 36A and 36B</figref>) may be disposed in the cap section without disposing the shape for screw coupling or the shape for snap fitting. Then, after the ID chip 535 and the face plate 834p are assembled in the cap section 834Y, the leading end of the positioning boss 734s3 may be thermally molten to fix the face plate 834p to the cap section 834Y, or an adhesive may be coated between the face plate 834p and the cap section 834Y to fix the face plate 834p to the cap section 834Y.

0230As described above, in the present fifth embodiment, the contact-type ID chip 535 (the information storage device) is held on the cap section 634Y, 734Y, or 834Y to be movable on the virtual plane that is substantially orthogonal to the movement direction in which the metallic pads 35a1, 35a2, and 35a3 (terminals) approach and come in contact with body side terminals 573e2. Thus, even when the contact-type ID chip 535 (the information storage device) is installed in the toner container 632Y, 732Y, or 832Y (the removable device) installed removably on the image forming apparatus body 100, the contact failure caused by the positioning failure with the body side terminals 573e2 of the connector 573e of the image forming apparatus body 100 is difficult to occur.

0231Further, even in the present fifth embodiment, similarly to the fourth embodiment, even when the contact-type ID chip 535 (the information storage device) is installed in the toner container 632Y (the removable device) installed removably on the image forming apparatus body 100, since the earth terminal 535d engaged with the body side earth terminal 573e25 formed in the positioning pin 573e23 (the protruding section) of the connector 573e (the image forming apparatus body 100) is formed in one hole 535b21 formed in the substrate 535b of the ID chip 535, the ID chip 535 is difficult to be electrically damaged.

0232<figref idref="f0024">Figs. 37A and 37B</figref> are views illustrating a toner container 932Y of another embodiment. Particularly, <figref idref="f0024">Fig. 37A</figref> is a front view illustrating a cap section 934Y on which the ID chip 535 is mounted, and <figref idref="f0024">Fig. 37B</figref> is a front view illustrating the cap section 934Y and the ID chip 535 before the ID chip 535 is mounted. In the toner container 932Y illustrated in <figref idref="f0024">Figs. 37A and 37B</figref>, unlike the above embodiments, the ID chip 535 (the information storage device) is fixed to and held on the cap section 934Y (held to be immovable in the XZ direction). Specifically, a concave section of the cap section 934Y (a section encircled by a dotted line in <figref idref="f0024">Fig. 37B</figref>) is formed in a shape according to an outer circumferential shape of the ID chip 535 so that the ID chip 535 can be fitted thereinto (fitted thereinto within a dimension variation range by a fitting tolerance of about 0.3 mm at maximum even if shaken). In this case, unlike the above embodiments, the ID chip 535 cannot move in the XZ plane, but the function effects of the ideas (1) to (4) among the five ideas (1) to (5) described in the fourth embodiment can be obtained. That is, since one positioning hole 535b21 in which the earth terminal 535d is formed is installed in the ID chip 535, the effects described in the fourth embodiment can be obtained.

Sixth Embodiment

0233A sixth embodiment of the present invention will be described in detail with reference to <figref idref="f0025">Figs. 38 and 39</figref>. <figref idref="f0025">Fig. 38</figref> is an exploded perspective view illustrating a toner container 1032Y according to the sixth embodiment. <figref idref="f0025">Fig. 39</figref> is a cross-sectional view illustrating the toner container 1032Y.

0234The toner container according to the present sixth embodiment is different from the above embodiments in which the container body 33Y is rotatably held on the toner container storage unit 70 in that a container body 1033Y is combined with any one of the cap sections 634Y, 734Y, 834Y, and 934Y illustrated in the fifth embodiment and non-rotatably held on the toner container storage unit 70 together with the cap section.

0235Referring to <figref idref="f0025">Figs. 38 and 39</figref>, similarly to the above embodiments, the toner container 1032Y according to the present sixth embodiment mainly includes the container body 1033Y (the bottle body) and the cap section 634Y installed on the head section thereof (or the cap section 734Y, 834Y, or 934Y of another form). Hereinafter, the cap section according to the present seventh embodiment will be described using the cap section 634Y described with reference to <figref idref="f0020">Figs. 32A and 32B</figref> in the fifth embodiment.

0236Unlike the above embodiments, in the toner container 1032Y according to the present sixth embodiment, the container body 1033Y (the bottle body) is fixed to the cap section 634Y by a fixing method, for example, it adheres to (fuses with) or is engaged with the cap section 634Y (the bottle cap). That is, the container body 1033Y is non-rotatably fixed to the cap section 634Y.

0237Unlike the above embodiments, in the container body 1033Y according to the present sixth embodiment, a helical protrusion is not formed on the circumferential surface thereof. Further, the gear 33c in the above embodiments is not integrally formed with the container body 1033Y, and a gear member 1042Y is installed rotatably on the container body 1033Y and the cap section 634Y together with the agitating member 33f. Inside the container body 1033Y, unlike the above embodiments, a conveying member 1041Y for conveying the toner stored in the container body 1033Y toward the opening A is formed such that one end thereof is fixed to the gear 1042Y, and the other end thereof is rotatably supported on a bearing 1033d1 of the container body 1033Y which will be described later.

0238The cap section 634Y has almost the same configuration as in the fourth embodiment except that it non-rotatably adheres to or is fixed to the container body 1033Y.

0239The agitating member 33f has almost the same configuration, form, and function as in the above embodiments except that it is not fixed to the container body 1033Y but held only on the gear 1042Y.

0240A further detailed description will be made with reference to <figref idref="f0025">Figs. 38 and 39</figref>.

0241Referring to <figref idref="f0025">Fig. 38</figref>, even in the sixth embodiment, on the other end side of the container body 1033Y in the longitudinal direction (the side opposite to one end side, at which the cap section 634Y is installed, in the longitudinal direction and an end section at the rear side in the mounting direction on the apparatus body 100), disposed is a gripping section 1033d gripped by the user when the attaching/detaching operation of the toner container 1032Y is performed. In the gripping section 1033d, a through hole communicating with the inside and outside of the container body 1033Y is formed, and a cover member 1049Y that is formed of deformable flexible resin such as polypropylene or polyethylene is removably installed in the through hole. The cover member 1049Y is used when filling the inside of the toner container 1032Y (the container body 1033Y) with the toner (or cleaning), for example, at the time of manufacturing or recycling. The cover member 1049Y is removed from the container body 1033Y when filling the toner (cleaning) and mounted to the container body 1033Y after filling of the toner is completed.

0242Referring to <figref idref="f0025">Fig. 39</figref>, the conveying member 1041Y installed inside the container body 1033Y is formed such that a thin flexible agitating member 1041Yb formed of a material such as mylar (a trade name: a polyester film) adheres to a shaft section 1041Ya, and an agitator member 1041Yc is formed at the opposite side. In the shaft section 1041Ya of the conveying member 1041Y, an end section at one end side in the longitudinal direction is engaged with and fixed to a connection section 1033f20 installed at the position of the rotation center of the agitating member 33f. An end section at the other side in the longitudinal direction is rotatably supported on the bearing section 1033d1 (which is a base section of the gripping section 1033d and formed in a section stuck into the container body 1033Y). In the state in which the container body 1033Y and the cap section 634Y are non-rotatably held on the toner container storage unit 70, the agitating member 33f receives driving force from the driving unit 91 and rotates together with the gear member 1042Y, and so the conveying member 1041Y connected with the agitating member 33f at the position of the connection section 1033f20 also rotates. Thus, the toner stored in a container body 1044Y is agitated by agitating force of the agitator member 1041Yc installed in the conveying member 1041Y, and the toner stored in the container body 1033Y is conveyed toward the cap section 1034Y by conveying force of the flexible agitating member 1041Yb installed in the conveying member 1041Y in the shaft direction.

0243The flexible agitating member 1041Yb of the conveying member 1041Y includes cutouts 1041Yb1 formed at a plurality of positions (in the present sixth embodiment, six positions) in the longitudinal direction. Thus, in accompany with rotation of the conveying member 1041Y, the leading end of the flexible agitating member 1041Yb (the free end side that is not supported on the shaft section 1041Ya) comes in sliding contact with the inner circumferential surface of the container body 1033Y, and the flexible agitating member 1041Yb rotates in the appropriately twisted and bent state, so that the toner stored in the container body 1033Y is agitated and conveyed toward the right side in <figref idref="f0025">Fig. 39</figref> in the shaft direction.

0244As described above, even in the toner container 1032Y according to the present sixth embodiment, similarly to the above embodiments, the toner is discharged from the toner discharge opening W of the cap section 1034Y.

0245Here, the gear member 1042Y is rotatably attached to the container body 1033Y.

0246In detail, a gear engaging section (a claw section snap fitted into) (not shown) formed in the gear member 1042Y is caught in a flange section (in which a protrusion 1033e which will be described later is formed) formed to make one round around the outer circumferential surface of a bottle mouth section 1033a of the container body 1033Y, and so the gear member 1042Y is rotatably held on the container body 1033Y. Further, a gear section (a spur gear) is formed on the outer circumferential surface of the gear member 1042Y, and when the toner container 1032Y is set to the apparatus body 100, the gear section meshes with the driving gear 81 of the apparatus body 100.

0247A seal material is disposed between the gear member 1042Y and the end surface of the bottle mouth section 1033a so as to prevent the toner from leaking to the outside of the toner container 1032Y. The seal material is made of a foamed elastic material such as foamed polyurethane, formed in an annular shape to be bitten into the end surface of the bottle mouth section 1033a, and adheres to the gear member 1042Y. When the gear member 1042Y is set to the container body 1033Y, the seal material is pressed against the opening end surface of the bottle mouth section 1033a, and so a sealing characteristic between both members 1033Y and 1042Y is secured.

0248The gear member 1042Y is not fixed to the cap section 1034Y but rotatably held on the claw section 34j of the cap section 634Y. A method of holding the gear member 1042Y on the cap section 634Y is similar to the method of holding the cap section 34Y on the bottle mouth section 33a of the container body 33Y described in the above embodiments. That is, the claw section 34j of the cap section 634Y is engaged with a flange-like engaged protruding section 1033j disposed to make one round around the outer circumference of the gear member 1042Y, and the gear member 1042Y is rotatably supported on the cap section 1034Y. Through the above described configuration, the container body 1033Y is connected with the cap section 634Y via the gear 1042Y. Further, in order to prevent the container body 1033Y from rotating on the cap section 634Y, the protrusion 1033e formed near the bottle mouth section 1033a of the container body 1033Y is fitted into a notch groove 1034t formed on the side surface of the cap section 634Y to play a role of a rotation stopper.

0249Further, in the cap section 634Y, a cap seal made of a foamed elastic material adheres to a section where the end surface of the gear member 1042Y (the end surface at the side opposite to the container body 1033Y side) is pressed. Thus, the toner leak from between the gear member 1042Y and the cap section 634Y can be prevented.

0250The agitating member 33f is attached to the inner surface of the gear member 1042Y. Further, the shaft section 1041Ya (the end section at one end side) of the conveying member 1041Y is connected to the connection section 1033f20 of the agitating member 33f as described above.

0251As described above, even in the present sixth embodiment, similarly to the above embodiments, the contact-type ID chip 535 (the information storage device) is held on the cap section 634Y to be movable on the virtual plane that is substantially orthogonal to the movement direction in which the metallic pads 35a1, 35a2, and 35a3 (terminals) approach and come in contact with body side terminals 573e2. Thus, even when the contact-type ID chip 535 (the information storage device) is installed in the toner container 1032Y (the removable device) installed removably on the image forming apparatus body 100, the contact failure caused by the positioning failure with the body side terminals 573e2 of the connector 573e of the image forming apparatus body 100 is difficult to occur.

0252Further, in the present sixth embodiment, the cap section 634Y described, for example, with reference to <figref idref="f0020">Figs. 32A and 32B</figref> in the fifth embodiment has been used as the cap section of the toner container, but as the cap section of the toner container in the present sixth embodiment, the cap section 734Y described with reference to <figref idref="f0023">Figs. 36A and 36B</figref> in the fifth embodiment may be used, the cap section 834Y described with reference to <figref idref="f0024">Fig. 37C</figref> in the fifth embodiment may be used, or the cap section 934Y described with reference to <figref idref="f0024">Figs. 37A and 37B</figref> in the fifth embodiment may be used.

0253Further, even in the present sixth embodiment, similarly to the fourth and fifth embodiments, even when the contact-type ID chip 535 (the information storage device) is installed in the toner container (the removable device) installed removably on the image forming apparatus body 100, since the earth terminal 535d engaged with the body side earth terminal 573e25 formed in the positioning pin 573e23 (the protruding section) of the connector 573e (the image forming apparatus body 100) is formed in one hole 535b21 formed in the substrate 535b of the ID chip 535, the ID chip 535 is difficult to be electrically damaged.

Seventh Embodiment

0254A seventh embodiment of the present invention will be described in detail with reference to <figref idref="f0026 f0027">Figs. 40 to 41B</figref>.

0255<figref idref="f0026">Fig. 40</figref> is an exploded perspective view illustrating an image forming apparatus 1100 according to the seventh embodiment. <figref idref="f0027">Fig. 41A</figref> is a cross-sectional view illustrating part of a toner cartridge 1106Y installed in the image forming apparatus, and <figref idref="f0027">Fig. 41B</figref> is a bottom view illustrating part of the toner cartridge 1106Y. In <figref idref="f0026 f0027">Figs. 40 to 41B</figref>, a toner discharge mechanism and a positioning mechanism for having the toner cartridge to operate are omitted.

0256The image forming apparatus 1100 according to the present seventh embodiment is different from those according to the above embodiments in which the toner container 532Y, 632Y, 732Y, 832Y, 932Y, or 1032Y in which the ID chip 535 is installed is mounted on the apparatus body 100 in the horizontal direction, where the longitudinal direction is the mounting direction, in that the toner cartridge 1106Y in which the ID chip 535 is installed is mounted on the apparatus body 1100 from above.

0257Referring to <figref idref="f0026">Fig. 40</figref>, the image forming apparatus 1100 according to the present seventh embodiment is configured so that toner cartridges 1106Y, 1106M, 1106C, and 1106K as four removable devices are attached or detached from above. <figref idref="f0033">Fig. 50</figref> illustrates the state in which the three toner cartridges 1106M, 1106C, and 1106K except the yellow toner cartridge 1106Y have been mounted on the apparatus body 1100.

0258The toner cartridges 1106Y, 1106M, 1106C, and 1106K are attached to or detached from an installation section of the apparatus body 1100 in the state in which a body cover 1110 (a body door) is opened as illustrated in <figref idref="f0026">Fig. 40</figref>.

0259Meanwhile, the toner cartridges 1106Y, 1106M, 1106C, and 1106K include an opening with a shutter that is disposed at the position of the lower side facing the developing device and store toner of corresponding color (one-component developer) thereinside. Referring to <figref idref="f0027">Figs. 41A and 41B</figref>, on the lower surfaces of the end sections of the toner cartridges 1106Y, 1106M, 1106C, and 1106K in the longitudinal direction, the ID chip 535 (the information storage device) is movably held by a holding member 1134k in the horizontal plane direction (the paper surface direction of <figref idref="f0027">Fig. 41B</figref>).

0260The holding member 1134k is screw-coupled to the toner cartridge 1106Y to come in contact with part of the substrate 535b of the ID chip 535 in the state in which the metallic pads 35al, 35a2, and 35a3, the positioning hole 535b21 (the earth terminal 535d), and the like of the ID chip 535 that is the same as that in the fourth embodiment are exposed. In detail, the hole of the holding member 1134k is combined with a boss section 1181 formed in the end section of the toner cartridge 1106Y, a screw 1180 is screwed into a screw hole formed at the opposite side with the ID chip 535 interposed between the boss section 1181 of the toner cartridge 1106Y and the hole formed in the holding member 1134k, and the holding member 1134k is fixed to the toner cartridge 1106Y. Thus, the ID chip 535 does not fall from the toner cartridge 1106Y and is held to be movable in the horizontal plane. Referring to <figref idref="f0026">Fig. 40</figref>, in accompany with the mounting operation of the toner cartridge 1106Y from above on the apparatus body 1100, the positioning pin 573e23 (the body side earth terminal 573e25) of the connector 573e installed in the installation section of the apparatus body 1100 is fitted into the positioning hole 535b21 (the earth terminal 535d) of the ID chip 535. Thereafter, the body side terminal 73e2 of the connector 573e comes in contact with the metallic pads 35a1, 35a2, and 35a3 of the ID chip 535, and electrical contact between the connector 573e and the ID chip 535 is completed. In this case, since the ID chip 535 in the toner cartridge 1106Y is held to be movable in the horizontal plane, similarly to the above embodiments, the contact failure caused by the positioning failure with the body side terminals 73e2 and 573e25 of the connector 573e of the apparatus body 1100 is difficult to occur.

0261As described above, in the present seventh embodiment, the contact-type ID chip 535 (the information storage device) is held on the toner cartridge 1106Y to be movable on the virtual plane that is substantially orthogonal to the movement direction in which the metallic pads 35al, 35a2, and 35a3 (terminals) approach and come in contact with body side terminals 573e2. Thus, even when the contact-type ID chip 535 (the information storage device) is installed in the toner cartridge 1106Y (the removable device) installed removably on the image forming apparatus body 1100, the contact failure caused by the positioning failure with the body side terminals 73e2 of the connector 573e of the image forming apparatus body 1100 is difficult to occur.

0262Further, even in the present seventh embodiment, similarly to the fourth to sixth embodiments, even when the contact-type ID chip 535 (the information storage device) is installed in the toner cartridge 1106Y (the removable device) installed removably on the image forming apparatus body 1100, since the earth terminal 535d engaged with the body side earth terminal 573e25 formed in the positioning pin 573e23 (the protruding section) of the connector 573e (the image forming apparatus body 1100) is formed in one hole 535b21 formed in the substrate 535b of the ID chip 535, the ID chip 535 is difficult to be electrically damaged.

Eighth Embodiment

0263A eighth embodiment of the present invention will be described in detail with reference to <figref idref="f0028">Figs. 42</figref> and <figref idref="f0029">43</figref>.

0264<figref idref="f0028">Fig. 42</figref> is a perspective view illustrating an image forming apparatus according to the eighth embodiment and is a view corresponding to <figref idref="f0026">Fig. 40</figref> in the eighth embodiment. <figref idref="f0029">Fig. 43</figref> is a schematic view illustrating a state in which the connector 573e is connected to the ID chip 535 in accompany with a closing operation of a body cover 1210 of an apparatus body 1200.

0265The image forming apparatus 1200 according to the present eighth embodiment is different from those according to the seventh embodiment in that the ID chip 535 is installed on an upper surface of a process cartridge 1206Y rather than the toner cartridge, and the connector 573e is installed in a body cover 1210 of the apparatus body 1200,

0266Referring to <figref idref="f0028">Fig. 42</figref>, the image forming apparatus 1200 according to the present eighth embodiment is configured so that process cartridges 1206Y, 1206M, 1206C, and 1206K as four removable devices are attached or detached from above. <figref idref="f0028">Fig. 42</figref> illustrates the state in which the three process cartridges 1206M, 1206C, and 1206K except the yellow process cartridge 1206Y have been mounted on the apparatus body 1200.

0267The process cartridges 1206Y, 1206M, 1206C, and 1206K are attached to or detached from an installation section of the apparatus body 1200 in the state in which the body cover 1210 (the body door) is opened as illustrated in <figref idref="f0028">Fig. 42</figref>. Here, in the present eighth embodiment, in the body cover 1210, LED units 1207Y, 1207M, 1207C, and 1207K for performing an exposure process are installed at the positions corresponding to the four process cartridges 1206Y, 1206M, 1206C, and 1206K, respectively (in <figref idref="f0028">Fig. 42</figref>, the two LED units 1207Y and 1207M are omitted). Referring to <figref idref="f0029">Fig. 43</figref>, when the body cover 1210 is closed, the LED unit 1207Y moves to face the positioning of the photosensitive drum 1201Y for an electrostatic latent image in the process cartridge 1206Y.

0268Meanwhile, in each of the process cartridges 1206Y, 1206M, 1206C, and 1206K, the photosensitive drum, the charging unit, the developing unit, and the cleaning unit are integrally formed, and toner of corresponding color (one component developer) is stored inside the developing unit. Referring to <figref idref="f0028">Fig. 42</figref>, on the upper surfaces of the end sections of the process cartridges 1206Y, 1206M, 1206C, and 1206K in the longitudinal direction, the ID chip 535 (the information storage device) is held by the holding member (not shown) (or the face plate) to be movable in the horizontal plane direction (the vertical direction and the left-right direction in the paper plane of <figref idref="f0029">Fig. 43</figref>).

0269The holding member is screw-coupled to an outer cover of the process cartridge 1206Y to come in contact with part of the substrate 535b of the ID chip 535 in the state in which the metallic pads 35a1, 35a2, and 35a3, the positioning hole 535b21 (the earth terminal 535d), and the like of the ID chip 535 that is formed similarly to that in the fourth embodiment are exposed. Thus, the ID chip 535 does not fall from the process cartridge 1206Y and is held to be movable in the horizontal plane. Referring to <figref idref="f0028">Fig. 42</figref>, in accompany with the mounting operation of the process cartridge 1206Y from above on the apparatus body 1200 (the mounting operation in accompany with the closing operation of the body cover 1210), the positioning pin 573e23 (the body side earth terminal 573e25) of the connector 573e installed in the body cover 1210 is fitted into the positioning hole 535b21 (the earth terminal 535d) of the ID chip 535. Thereafter, the body side terminal 73e2 of the connector 573e comes in contact with the metallic pads 35a1, 35a2, and 35a3 of the ID chip 535, and electrical contact between the connector 573e and the ID chip 535 is completed. In this case, since the ID chip 535 in the process cartridge 1206Y is held to be movable in the horizontal plane, similarly to the above embodiments, the contact failure caused by the positioning failure with the body side terminals 573e2 and 573e25 of the connector 573e of the apparatus body 1200 is difficult to occur.

0270Further, in the present eighth embodiment, referring to <figref idref="f0029">Fig. 43</figref>, the LED unit 1207Y (having an end section in which the connector 573e is installed) is installed to be rotatable (swingable) on the body cover 1210 clockwise or counterclockwise in <figref idref="f0029">Fig. 43</figref> via a support arm 1211. The LED unit 1207Y is urged by a compression spring 1212 installed inside the support arm 1211. When the body cover 1210 is closed to mount the four LED units on the process cartridges by the swing function and the urging force against the process cartridge side, as illustrated in <figref idref="f0029">Fig. 43</figref>, the LED unit 1207Y shakes the neck along the wall surface of the process cartridge 1206Y and is guided to a predetermined position. At the same time, the connector 573e also moves to approach the ID chip 535 and is positioned similarly to the fourth to seventh embodiments. Thus, due to the urging force of the compression spring 1212, the connector 573e comes in contact with the ID chip 535 of the process cartridge 1206Y mounted on the installation section of the apparatus body 1200 with appropriate force.

0271As described above, in the present eighth embodiment, the contact-type ID chip 535 (the information storage device) is held on the process cartridge 1206Y to be movable on the virtual plane that is substantially orthogonal to the movement direction in which the metallic pads 35a1, 35a2, and 35a3 (terminals) approach and come in contact with body side terminals 573e2. Thus, even when the contact-type ID chip 535 (the information storage device) is installed in the process cartridge 1206Y (the removable device) installed removably on the image forming apparatus body 1200, the contact failure caused by the positioning failure with the body side terminals 573e2 of the connector 573e of the image forming apparatus body 1200 is difficult to occur.

0272Further, in the present eighth embodiment, even when the contact-type ID chip 535 (the information storage device) is installed in the process cartridge 1206Y (the removable device) installed removably on the image forming apparatus body 1200, since the earth terminal 535d engaged with the body side earth terminal 573e25 formed in the positioning pin 573e23 (the protruding section) of the connector 573e (the image forming apparatus body 1200) is formed in one hole 535b21 formed in the substrate 535b of the ID chip 535, the ID chip 535 is difficult to be electrically damaged.

Ninth Embodiment

0273A ninth embodiment of the present invention will be described in detail with reference to <figref idref="f0030">Figs. 44 and 45</figref>.

0274<figref idref="f0030">Fig. 44</figref> is a perspective view illustrating an ink cartridge 1306Y (a developer container) according to the ninth embodiment. <figref idref="f0030">Fig. 45</figref> is a front view illustrating an inkjet printer 1300 as an image forming apparatus in which ink cartridges 1306Y, 1306M, 1306C, and 1306K are installed.

0275The image forming apparatus 1300 according to the present ninth embodiment is different from those according to the above embodiments in that the ink cartridge 1306Y having the side surface on which the ID chip 535 is installed is mounted on the apparatus body 1300 from the side.

0276Referring to <figref idref="f0030">Fig. 45</figref>, the image forming apparatus 1300 (the inkjet printer) according to the present ninth embodiment includes a carriage 1301 that includes recording heads 1301a and 1301b and moves in a direction of an double-headed arrow, a guide lock 1302, a supply tube 1303 that supplies ink from the ink cartridges 1306Y, 1306M, 1306C, and 1306K of respective colors to a sub tank of the carriage 1301, a conveying belt 1304 for conveying a recording medium P in a direction of an arrow, and the like. The ink cartridges 1306Y, 1306M, 1306C, and 1306K of respective colors (the removable devices) are removably installed on an installation section disposed in the end section of the apparatus body 1300 (installation having the vertical direction in <figref idref="f0030">Fig. 45</figref> as the attaching/detaching direction).

0277Further, a main configuration of an image forming apparatus 300 is the same as stated in, for example, Japanese Patent Application Laid-open No. <patcit id="pcit0015" dnum="JP2010234801A"><text>2010-234801</text></patcit> and has been well known, and thus a detailed description thereof will not be repeated.

0278Referring to <figref idref="f0030">Fig. 44</figref>, in the ink cartridge 1306Y (an ink bag 1307 is stored thereinside) as the removable device, the ID chip 535 (the information storage device) held on a holding member 1334k to be movable in the XZ direction is installed on a concave section 1308 formed on the side surface thereof.

0279The holding member 1334k and the ID chip 535 have a configuration similar to those in the fourth embodiment. That is, the holding member 1334k is fitted into the concave section 1308 of the ink cartridge 1306Y in the state in which the metallic pads 35a1, 35a2, and 35a3, the positioning holes 535b21 (the earth terminal 535d), and the like of the ID chip 535 are exposed. Thus, the ID chip 535 does not fall from the ink cartridge 1306Y and is held on the holding member 1334k to be movable in the XZ plane. Referring to <figref idref="f0030">Fig. 44</figref>, in accompany with the mounting operation on the apparatus body 1300, the positioning pin 573e23 (the body side earth terminal 573e25) of the connector 573e installed in the apparatus body 1300 is fitted into the positioning hole 535b21 (the earth terminal 535d) of the ID chip 535. Thereafter, the body side terminal 73e2 of the connector 573e comes in contact with the metallic pads 35al, 35a2, and 35a3 of the ID chip 535, and electrical contact between the connector 573e and the ID chip 535 is completed. In this case, since the ID chip 535 in the ink cartridge 1306Y is held to be movable in the XZ plane, similarly to the above embodiments, the contact failure caused by the positioning failure with the body side terminals 573e2 and 573e25 of the connector 573e of the apparatus body 1300 is difficult to occur.

0280As described above, in the present ninth embodiment, the contact-type ID chip 535 (the information storage device) is held on the ink cartridge 1306Y through the holding member 1334k to be movable on the virtual plane that is substantially orthogonal to the movement direction in which the metallic pads 35a1, 35a2, and 35a3 (terminals) approach and come in contact with body side terminals 573e2. Thus, even when the contact-type ID chip 535 (the information storage device) is installed in the ink cartridge 1306Y (the removable device) installed removably on the image forming apparatus body 1300, the contact failure caused by the positioning failure with the body side terminals 573e2 of the connector 573e of the image forming apparatus body 1300 is difficult to occur.

0281Further, even in the present ninth embodiment, even when the contact-type ID chip 535 (the information storage device) is installed in the ink cartridge 1306Y (the removable device) installed removably on the image forming apparatus body 1300, since the earth terminal 535d engaged with the body side earth terminal 573e25 formed in the positioning pin 573e23 (the protruding section) of the connector 573e (the image forming apparatus body 1300) is formed in one hole 535b21 formed in the substrate 535b of the ID chip 535, the ID chip 535 is difficult to be electrically damaged.

Tenth Embodiment

0282A tenth embodiment of the present invention will be described in detail with reference to <figref idref="f0031 f0032 f0033 f0034 f0035 f0036 f0037 f0038 f0039 f0040">Figs. 46 to 59</figref>.

0283<figref idref="f0031">Fig. 46</figref> is a perspective view illustrating a toner container 1632Y as a removable device according to the tenth embodiment. The toner container 1632Y includes a container body 1633Y having the same configuration as the container body 33Y, a cap section 1634Y that covers a toner discharge opening (not shown) formed in the container body 1633Y from the outer side, an ID chip as an information storage device attached to the leading end of the cap section 1634Y, and a holding mechanism 1635 that holds the ID chip. For example, the ID chip 535 described in the fourth embodiment may be used as the ID chip.

0284The toner container 1632Y relates to a toner container attachable to and detachable from a toner feeding device of a toner suction conveying type disclosed in Japanese Patent No. <patcit id="pcit0016" dnum="JP4396946B"><text>4396946</text></patcit> or <patcit id="pcit0017" dnum="US7835675B"><text>U.S. patent No. 7,835,675</text></patcit>. That is, except for the ID chip, the holding mechanism, and a communication method of the ID chip, the toner container and the toner feeding device disclosed in the relevant patent are employed. The relevant patent is referred to in connection with a positioning configuration, which allows attachment and detachment, disposed in both the toner container and the feeding device, a configuration for driving the container body, and the like. The difference between the toner container of the present embodiment and the toner container of Japanese Patent No. <patcit id="pcit0018" dnum="JP4396946B"><text>4396946</text></patcit> or <patcit id="pcit0019" dnum="US7835675B"><text>U.S. patent No. 7,835,675</text></patcit> will be described later. The toner feeding device of the present embodiment is different from the toner feeding device of Japanese Patent No. <patcit id="pcit0020" dnum="JP4396946B"><text>4396946</text></patcit> or <patcit id="pcit0021" dnum="US7835675B"><text>U.S. patent No. 7,835,675</text></patcit> in that the former employs a contact type communication method, whereas the latter employs a non-contact type communication method (a so-called RFID method). Thus, as the body side connector of the former, the connector 573e of <figref idref="f0017">Figs. 27, 28</figref>, and <figref idref="f0022">35</figref> described with reference to the fourth embodiment is disposed at a position facing the toner container cap end surface of the toner feeding device of Japanese Patent No. <patcit id="pcit0022" dnum="JP4396946B"><text>4396946</text></patcit> or <patcit id="pcit0023" dnum="US7835675B"><text>U.S. patent No. 7,835,675</text></patcit>.

0285As illustrated in <figref idref="f0032">Fig. 47</figref>, the positioning hole 535b21 described above is formed in the ID chip 535, and, for example, the positioning pin 573e23 of the connector installed in the apparatus body described above is inserted into the positioning hole 535b21.

0286The holding mechanism 1635 includes a holding section 1635A that holds the ID chip 535 in a movable manner in the XZ direction and a holding cover 1635B as a cover member that is removably fitted into the holding section 1635A.

0287As illustrated in <figref idref="f0032">Fig. 48</figref>, the holding section 1635A includes a concave section 1635Aa formed on an ID chip mounting surface 1634Ya that is vertically flat and formed at the leading end of the cap section 1634Y, a pedestal section 1635q, formed in the concave section 1635Aa, in which the ID chip 535 is installed, and an ID chip installation wall section 1635Ab of a substantially frame shape formed to surround the concave section 1635Aa and the pedestal section 1635q from the outer side. The ID chip installation wall section 1635Ab is formed to protrude outward from the ID chip mounting surface 1634Ya further than the pedestal section 1635q. The ID chip installation wall section 1635Ab has a size capable of storing the ID chip 535 having an outward rectangular form and holds the ID chip 535 in a movable manner in the XZ direction when the ID chip 535 is placed. That is, the ID chip 535 is installed in the pedestal section 1635q but not fixed to the cap section 1634Y. When installed in the pedestal section 1635q, the ID chip 535 is installed with a clearance with the ID chip installation wall section 1635Ab that is formed to surround the ID chip 535 from the outer side.

0288On the ID chip mounting surfaces 1634Ya, positioning bosses 1615a and 1615b for mounting the holding cover 1635B are formed to protrude from the ID chip mounting surface 1634Ya. The positioning bosses 1615a and 1615b are integrally formed with the cap section 1634Y by resin.

0289The holding cover 1635B is mounted on and fixed to the holding section 1635A by a melt-fixing method (for example, heat calking) described below, with the ID chip being disposed in the holding section 1635A. A central section of the holding cover 1635B is provided with an opening 1635Bc that allows a contact point (not shown) and the positioning hole 535b21 of the ID chip 535 to be exposed to the outside and allows the connector terminal (not shown) of the connector and the positioning pin 573e23 to be inserted therethrough. The holding cover 1635B is configured to sandwich the IC chip 535 set inside the ID chip installation wall section 1635Ab together with the ID chip installation wall section 1635Ab so that the ID chip 535 does not separate. Above and below the opening 1635Bc of the holding cover 1635B, mounting holes 1635Ba and 1635Bb are formed at positions corresponding to the positioning bosses 1615a and 1615b.

0290In this configuration, when mounting the ID chip 535 on the cap section 1634Y, the back surface of the ID chip 535 comes in contact with the pedestal section 1635q so that its position in a depth direction is determined. Along this, up, down, left and right positioning is done by the surrounding thanks to the ID chip installation wall section 1635Ab. The holding cover 1635B is superimposed on the ID chip installation wall section 1635Ab in a direction facing the ID chip installation wall section 1635Ab, and the positioning bosses 1615a and 1615b are inserted into the mounting holes 1635Ba and 1635Bb. Thus, the ID chip 535 is positioned in a state covered by the holding cover 1635B, and mounted and held on the cap section 1634Y. In this state, the ID chip 535 is installed on the ID chip mounting surface 1634Ya of the cap section 1634Y but is not fixed directly to the cap section 1634Y. That is, the ID chip 535 is mounted to the cap section 1634Y through the ID chip installation wall section 1635Ab formed on the ID chip mounting surface 1634Ya.

0291The present embodiment features a fixing method between the holding cover 1635B and the cap section 1634Y. In the present embodiment, a melt-fixing method is employed as a fixing method of the holding cover 1635B and the cap section 1634Y.

0292Since the holding cover 1635B is held such that the positioning bosses 1615a and 1615b formed at the cap section 1634Y side are inserted into the mounting holes 1635Ba and 1635Bb as described above, in the present embodiment, as illustrated in <figref idref="f0033">Fig. 49</figref>, the holding cover 1635B is fixed to the cap section 1634Y by heat calking. In <figref idref="f0033">Fig. 49</figref>, a reference numeral 1640 represents a calking section (a fixing section). For example, the positioning bosses 1615a and 1615b illustrated in <figref idref="f0032">Fig. 48</figref> have the size protruding from the mounting holes 1635Ba and 1635Bb. The positioning bosses 1615a and 1615b are heated by a heating member such as a heatable iron, and the calking section 1640 is formed by crushing and thermally deforming the bosses while melting them by heat. Accordingly, the holding cover 1635B can be fastened to and fixed to the cap section 1634Y.

0293In the present embodiment, as the fixing method between the holding cover 1635B and the cap section 1634Y, fixing by heat calking has been described, but as the fixing method between the holding cover 1635B and the cap section 1634Y, another melt-fixing method such as ultrasonic welding may be used, and a resin melting method not limited to the present embodiment.

Eleventh Embodiment

0294A eleventh embodiment will be described in detail with reference to <figref idref="f0033">Figs. 50</figref> and <figref idref="f0034">51</figref>.

0295In the present embodiment, the holding cover 1635B is not fixed by a process such as heat calking but fixed by a fastening method using a fastening member. The remaining sections of the toner container and the form of the toner feeding device are the same as in the tenth embodiment. In present embodiment, the holding cover 1635B is fixed to the cap section 1634Y such that fastening members 1650a and 1650b are inserted into the mounting holes 1635Ba and 1635Bb formed in the holding cover 1635B that allows the positioning bosses 1615a and 1615b to be inserted into and screwed into the ID chip mounting surface 1634Ya. For example, when the screw fixing is performed using a self-tap screw that creates a screw groove in an opposing hole at the same time when it is screwed into the opposing hole as the fastening members 1650a and 1650b, all you have to do is to form a tubular pilot hole (corresponding to 1651a and 1651b of <figref idref="f0034">Fig. 51</figref>) in the ID chip mounting surface 1634Ya.

0296As another embodiment, for example, there is a case in which the holding cover 1635B is fixed to the cap 1634Y without the ID chip being held therein and then the resultant product is shipped from a toner container manufacturing factory, and then in another factory, the holding cover 1635B is removed, the ID chip is set inside, and the holding cover 1635B is fixed again to the cap 1634Y, or there is a case of recycling the used toner container. In this case, if attachment/detachment of the holding cover 1635B is repeated within a certain range, the above described tubular pilot hole is preferable. However, if five or six times, or more times of attachments/detachments are expected and the stability of fastening force on each occasion should be considered, it is preferable that screw holes 1651a and 1651b are formed in advance in the ID chip mounting surface 1634Ya, and fixing is performed by screwing screws into the screw holes 1651 a and 1651b through the mounting holes 1635Ba and 1635Bb so as to correspond to the pitch of the screw holes 1651a and 1651b as fastening members 1650a and 1650b, as illustrated in <figref idref="f0034">Fig. 51</figref>. In the present embodiment, the fastening members 1650a and 1650b are fixed at two positions below and above the holding cover 1635B but may be fixed at one position, or more positions then the above. Further, the fastening members 1650a and 1650b may be mounted at the left and right sides rather than the upper and lower sides of the holding cover 1635B, and are not limited in terms of number and position to the present embodiment.

Twelfth Embodiment

0297A twelfth embodiment of the present invention will be described in detail with reference to <figref idref="f0034">Figs. 52</figref> and <figref idref="f0035">53</figref>.

0298In the present embodiment, the holding cover is characterized in that it is not fastened to and fixed to the cap section 1634Y by the process such as heat calking or the fastening member but fixed by a fitting method using a claw member. The remaining sections of the toner container and the form of the toner feeding device are the same as those in the tenth embodiment.

0299A holding cover 1635C according to the present embodiment basically has the same function as the holding cover 1635B. Specifically, the mounting holes 1635Ba and 1635Bb are eliminated from the holding cover 1635B, and instead hook sections 1636a and 1636b that pass through up to an opening 1635Cc formed at a central section are formed in an upper section 1635Ca and a lower section 1635Cb. Like the opening 1635Bc, the opening 1635Cc allows the contact point (not shown) and the positioning hole 535b21 of the ID chip 535 to be exposed to the outside and allows the connector terminal (not shown) of the connector and the positioning pin 573e23 to be pass therethrough.

0300In the present embodiment, the cap section 1634Y, as illustrated in <figref idref="f0035">Fig. 53</figref>, is provided with claw sections 1637a and 1637b as engaging sections that enter the inside of the hook sections 1636a and 1636b and engage with the hook sections 1636a and 1636b. In the present embodiment, the claw sections 1637a and 1637b are formed to be disposed respectively on the upper section and the lower section of the ID chip installation wall section 1635Ab covered with the holding cover 1635C. The claw sections 1637a and 1637b have inclined surfaces 1637a1 and 1637b1 formed at the insertion side and are configured so as to guide the holding cover 1635C to the tops of the claw sections 1637a when the holding cover 1635C is aligned and mounted.

0301With this configuration, when the ID chip 535 is set in the ID chip installation wall section 1635Ab and the holding cover 1635C is moved toward the ID chip installation wall section 1635Ab so as to be superimposed on the ID chip installation wall section 1635Ab, the claw section 1637a formed in the ID chip installation wall section 1635Ab that becomes the cap section 1634Y side enters the inside of the hook sections 1636a and 1636b formed in the holding cover 1635C, and the holding cover 1635C can be fixed to the cap section 1634Y by fitting between both sides.

0302In the present embodiment, the hook sections 1636a and 1636b are fitted into the claw sections 1637a and 1637b at the two positions of the upper and lower sections of the holding cover 1635C, but they may be fitted at the left and right sections or at the upper, lower, left, and right sections of the holding cover 1635C instead of the upper and lower sections. The fitting position and number are not limited to the present embodiment.

0303In the eleventh and twelfth embodiments, the method of fastening or fitting the holding cover 1635C to be attached to or detached from the cap section 1634Y has been described. However, as another fixing method, for example, the cover member may be fixed to the ID chip installation wall section 1635Ab by an adhesive. In this case, the cover member preferably has adhesive force sufficient not to fall off at the time of detachment of the toner container 1632Y from the apparatus body, and a kind of an adhesive and an adhesion area are not particularly limited.

0304In the tenth to twelth embodiments, even in any embodiment, even when the ID chip 535 that is the contact-type information storage device is installed in the toner container 1632Y, the contact failure caused by the unsatisfactory positioning relative the terminal of the connector of the apparatus body is difficult to occur.

Thirteenth Embodiment

0305In the toner container according to any one of the first to sixth embodiments, part of the inventive (the shutter mechanism) for solving the above described third problem will be described in detail once again as a thirteenth embodiment.

0306The stopper release urging section 72b in <figref idref="f0003">Fig. 5</figref> will be described with reference to <figref idref="f0010">Fig. 14</figref> and the subsequent figures. The stopper release urging section 72b is a section used to open the toner discharge opening W by displacing the shutter 34d disposed in the cap section 34Y from the closed state to the open state in conjunction with the insertion (mounting) operation of the developer storage containers 32Y, 32M, 32C, and 32K. The stopper release urging section 72b is configured with a trapezoidal rib that protrudes upward from the upper surface of the bottle receiving surface 72a toward the shutter.

0307Meanwhile, <figref idref="f0010">Fig. 14</figref> illustrates the entire configuration of the developer storage containers 32Y, 32M, 32C, and 32K (see <figref idref="f0010">Fig. 14</figref>).

0308In <figref idref="f0010">Fig. 14</figref>, the developer storage container 32Y mainly includes the container body 33Y (the bottle body) and the cap section 34Y (the bottle cap) disposed at the head thereof. Further, the ID chip 35 as the information storage device or the like is detachably installed in the cap section 34Y of the developer storage container 32Y.

0309Among the sections described above, the configuration is used at the position where the ID chip 35 is installed so that the ID chip 35 can be mounted.

0310On the leading end surface of the cap section 34Y, the first and second positioning holes 34a and 34b that can be engaged with the first and second positioning pins (not shown) disposed in the cap receiving section 73 are disposed at the two positions in the longitudinal direction (the vertical direction).

0311Between the first and second positioning holes 34a and 34b, formed is a rectangular concave section 34t that has a shape connectable with the connector disposed at the developer storage container storage unit 70 (see <figref idref="f0003">Fig. 5</figref>) and extends in the vertical direction as illustrated in <figref idref="f0035">Figs. 54</figref> and <figref idref="f0036">55</figref>. Inside the concave section, as illustrated in <figref idref="f0035">Fig. 54</figref>, the holding member 34k to which the ID chip is attachable is mounted. A reference numeral 33f illustrated in <figref idref="f0035">Fig. 54</figref> represents the agitating member having an agitating section positioned inside the cap, and the agitating member rotates in conjunction with the gear 33c which will be described later.

0312The mounting position of the holding member 34k is vertically higher than the position of the toner discharge opening W that is opened or closed by the shutter 34d which will be described later with reference to <figref idref="f0038">Figs. 57A to 57C</figref> (in <figref idref="f0035">Fig. 54</figref>, for convenience, the position having the height H between a bottom section 34t1 of the concave section 34t and the toner discharge opening W), and thus the holding member 34k is separated from the toner discharge opening W. Further, a convex wall is disposed at a circumferential edge of the rectangular concave section. Thus, obtained is the state in which part of the concave section 34t is difficult to be superimposed on part of the toner discharge opening W in the transverse direction. That is, the bottom section 34t1 of the concave section 34t does not get close to the toner discharge opening W. Thus, part of the toner discharge opening W is prevented from being filled with the bottom section 34t1, and discharging of the toner is not inhibited. Further, even when the toner leaks and is scattered from the toner discharge opening W of the developer storage container 32Y to the outside, the scattered toner does not reach the connector against its own weight, and the scattered toner is blocked by the convex wall. Thus, the contact failure caused when the toner sticks to the connector can be prevented, and the occurrence of the communication failure can be prevented. The concave section 34t is disposed at the first positioning hole 34a side.

0313Meanwhile, in the head section of the container body 33Y, as illustrated in <figref idref="f0035">Fig. 54</figref>, the gear 33c integrally rotating together with the container body 33Y and the opening A are disposed at one end side in the longitudinal direction (the left-right direction in <figref idref="f0035">Fig. 54</figref>).

0314The opening A is disposed on the head section positioned at the front side when the container body 33Y is mounted and allows the toner stored in the container body 33Y to be discharged toward a hollow space section B inside the cap section 34Y.

0315Further, as the toner is consumed at the image forming apparatus body side, toner conveyance (rotation driving of the container body 33Y) from the inside of the container body 33Y to the hollow space B inside the cap section 34Y is appropriately performed.

0316Next, the configuration of the cap section 34Y of the developer storage container 32Y will be described below with reference to <figref idref="f0035">Figs. 54</figref> and <figref idref="f0036">55</figref>.

0317In the cap section 34Y of the developer storage container 32Y, installed are the ID chip 35 (the information storage device), the shutter member 34d, and the shutter seal 36.

0318As illustrated in <figref idref="f0036">Fig. 55</figref>, the cap section 34Y has a structure in which roughly a cylindrical body in which the outer diameter and the inner diameter decreases from the container body 33Y side toward the shutter member 34d side in three stages (large, medium, and small) is combined with a box section, disposed at the bottom, in which the width in the horizontal direction decreases in two stages (wide width and narrow width). The cap section 34Y includes an insertion section including the large diameter section and the medium diameter section of the cylindrical section and the wide width box section 34n.

0319In the large diameter section of the cap section 34Y, a cut-out hole 34P0 formed such that part of the outer circumference is removed is disposed, and as illustrated in <figref idref="f0036">Fig. 55</figref>, part of the teeth of the gear 33c is exposed to the outside.

0320In the insertion section, in <figref idref="f0036">Fig. 55</figref>, a circumferential section 34P1 adjacent to the cut-out hole 34P0 in the shaft direction has the outer diameter smaller than a circumferential section 34P2 that is not adjacent to the cut-out hole 34P0 in the circumferential direction. In <figref idref="f0036">Fig. 55</figref>, for convenience, D1 and D2 representing the outer diameters are attached to the reference numerals of the circumferential sections 34P1 and 34P2, and the relation between the outer diameters is D1&lt;D2.

0321As described above, the circumferential section adjacent to the cut-out hole 34P0 of the insertion section in the shaft direction has the outer diameter smaller than other sections, and thus the teeth surface of the gear engaged with the gear 33c, which is exposed to the outside through the cut-out hole 34P0, in the shaft direction becomes difficult to interfere with the insertion section outer circumference. As a result, the engagement operation of the gear 33c with the gear moving in the shaft direction can be smoothly performed without being disturbed by part of the insertion section.

0322Further, in <figref idref="f0036">Fig. 55</figref> and <figref idref="f0044">Fig. 64</figref> illustrating a fourteenth embodiment, which will be described later, that is a modification in which a main part is shared with the configuration illustrated in <figref idref="f0036">Fig. 55</figref>, a reference numeral 34YG0 represents a retaining section configured by a step section at the leading end side of a guide rail 34YG. The retaining section 34YG0 is a section that is hit by a slide protruding section 34d1c (see <figref idref="f0038">Figs. 57A to 57C</figref>) disposed at the shutter 34d side so that the shutter 34d cannot move forward further, thereby retaining the shutter 34d as will be described later.

0323As illustrated in detail in <figref idref="f0044">Fig. 64</figref>, an upper rail rib 34SG that is at a predetermined distance from the guide rail 34YG and parallel to the guide rail 34YG is disposed above the guide rail 34YG. The upper rail rib 34SG prevents a sandwiching section of a body side shutter closing mechanism 73d (see <figref idref="f0040">Fig. 59</figref>) illustrated in <figref idref="f0040">Fig. 59</figref> and drawings subsequent thereto from entering between the cylindrical circumferential surface of the cap 34Y and the guide rail 34YG.

0324On the upper surface of the guide rail 34YG, a shutter protruding section 34YG2 including a protruding section is disposed at the position that the shutter 34d reaches before hitting the retaining section 34YG0 (see <figref idref="f0044">Fig. 64</figref>). The shutter protruding section 34YG2 is used as a section for restricting movement of the shutter 34d when the shutter 34d is in the closed state.

0325An insertion/removal (attachment/detachment) operation of the developer storage container 33Y can be performed by the user gripping the gripping section disposed on the rear side end section of the container body 33Y in the insertion (mounting) direction as indicated by a reference numeral 33d in <figref idref="f0010">Fig. 14</figref>.

0326A narrow width box section 34Y1 is formed in the small diameter cylindrical section of the cap section 34Y, and inside the box section 34Y1, as illustrated in <figref idref="f0037">Fig. 56B</figref>, the toner discharge opening W for discharging (falling by its own weight) the toner, discharged from the opening A of the container body 33Y to the lower side in vertical direction, that is, to the container outside, is disposed to communicate with the hollow space section B illustrated in <figref idref="f0035">Fig. 54</figref>.

0327As illustrated in <figref idref="f0037">Fig. 56B</figref>, the toner discharge opening W is formed in a hexagonal shape that is one of polygonal shapes and has a predetermined flow passage area and communicates the lower side circumferential surface of the space B inside the small diameter cylindrical section with the toner discharge opening W (discharge opening). Thus, the toner discharged to the space B inside the small diameter cylindrical section of the cap section 34Y from the opening A of the container body 33Y falls from the toner discharge opening W of the hexagonal cylindrical shape by its own weight and then is smoothly discharged to the container outside (the toner tank section 61Y).

0328In the toner discharge opening W, as illustrated in <figref idref="f0035">Fig. 54</figref> and <figref idref="f0037">56B</figref>, a rib W1 protruding toward a seal material 36 of the shutter 34d which will be described later is formed along the opening circumferential edge. The rib W1 has a function of folding and riding up the end section of the seal material 36 which will be described later, a function of improving adhesion of the seal material 36 by coming in press contact with a section other than the end section, and a function of damming the toner that is about to leak from the toner discharge opening W.

0329In <figref idref="f0037">Figs. 56A and 56B</figref>, in the bottom section of the narrow width box section 34Y1 disposed in the lower section of the cap section 34Y, the shutter 34d for performing opening and closing of the toner discharge opening W in conjunction with the attaching/detaching operation of the developer storage container 32Y on the developer storage container storage unit 70 is held to be slidingly movable.

0330The shutter 34d is a feature section of the present invention and has the following configuration which will be described with reference to <figref idref="f0038">Figs. 57A and 57B</figref>. In addition, <figref idref="f0038">Fig. 57A</figref> is a perspective view in which the shutter 34d is viewed from the bottom surface side, and <figref idref="f0038">Fig. 57B</figref> is a perspective view in which the shutter 34d is viewed from the top surface.

0331The shutter 34d is made of a resin material such as polystyrene and mainly includes a plate-like main shutter section 34d1 and a shutter deforming section 34d2 that protrudes the main shutter section 34d1, is thinner in thickness than the main shutter section 34d1, and has elasticity.

0332In the main shutter section 34dl, vertical wall 34d1a standing at both side end sections of a plate section and a pair of shutter sliders 34d12 having a protruding objects protruding from the vertical walls are disposed.

0333The vertical walls 34d1a includes a pair of slide protruding sections 34dlc that are disposed at the inner side surfaces of the vertical walls to protrude facing each other and L-shaped engaged protruding sections 34d1b that are disposed on the outer side surfaces at the side opposite to the slide protruding sections 34dlc.

0334The engaged protruding section 34d1b is shaped such that a plate section extending in the shutter moving direction is present on the upper surface, and a protrusion 34d1b1 engaged with a sandwiching section which will be described later extends downward from a section positioned in the front side of the plate section in an insertion direction of the developer storage container.

0335The shutter slider 34d12 includes a pair of prismatic sections that is disposed to protrude from the surface of the same side as the engaged protruding section 34dlb of the vertical wall 34d1a and extends toward the rear side in the direction of closing the toner discharge opening W of the shutter 34d indicated by an arrow.

0336In the present embodiment, as illustrated in <figref idref="f0038">Fig. 57B</figref>, the protrusion 34d1b1 disposed in the engaged protruding section 34d1b is disposed at the position offset from the front end surface of the main shutter section 34d1 (the position where a section corresponding to a distance indicated by a symbol S1 in <figref idref="f0038">Fig. 57B</figref> is removed). As will be described in <figref idref="f0040">Fig. 59</figref> and drawings subsequent thereto, the protrusion 34d1b1 is used as a section for preventing interference when one of sandwiching sections 73d2 (see <figref idref="f0040">Fig. 59</figref>) disposed in a body side shutter closing mechanism 73d starts to turn.

0337In the shutter 34d, the shutter deforming section 34d2 is configured in a cantilever shape, and an inner side angular section of a base station connected to the main shutter section 34d1 is formed of an arc-like curvature-shaped section (a shape indicated by symbol R in <figref idref="f0038">Figs. 57A and 57B</figref>) and functions to avoid stress concentration when deflectively deformed.

0338Further, the shutter deforming section 34d2 is formed such that part of the base end positioned at the main shutter section 34dl side becomes a horizontal surface (a section indicated by symbol S2 in <figref idref="f0038">Fig. 57C</figref>), and the remaining section is inclined from the leading end of the horizontal surface as illustrated in <figref idref="f0038">Fig. 57C</figref> in which the engaged protruding section 34dlb is omitted. In this configuration, unlike when the inclined base end of the shutter deforming section 34d2 is directly connected with the main shutter section 34dl, it is possible to avoid stress from being concentrated at the connection position between the inclined base end of the shutter deforming section 34d2 and the main shutter section 34dl when the base end side of the shutter deforming section 34d2 oscillates.

0339The shutter deforming section 34d2 is configured with a cantilever shaped piece section (a section having the length indicated by symbol L in <figref idref="f0038">Fig. 57A</figref>) extending to the rear side in the insertion direction of the developer storage container as the base end of the main shutter section 34d1. The shutter deforming section 34d2 is inclined such that it goes downward from the base end side to the rear side in the insertion direction.

0340The free ends of the shutter deforming section 34d2 are integrated by a connecting plate section 34d2a that bridges them laterally. In the central section of the connecting plate section 34d2a in the bridging direction, a stopper release section 34d21 is disposed to face the stopper release urging section 72b (see <figref idref="f0003">Fig. 5</figref>) that is configured with a trapezoidal rib disposed at the cap receiving section 73 side. On both sides in the bridging direction, as will be described later, disposed are stopper sections 34d22 for fixing the shutter 34d so as to prevent careless opening of the toner discharge opening W.

0341The stopper release section 34d21 is formed to have a triangular cross section. By running on the stopper release urging section 72b (see <figref idref="f0003">Fig. 5</figref>) disposed at the cap receiving section 73 side, the stopper release section 34d21 changes the shutter deforming section 34d2 from an inclined state to a horizontal state, so that engagement between the stopper section 34d22 and an engaging end surface 34nl (see <figref idref="f0037">Figs. 56A and 56B</figref>) positioned in the wide width box section 34n that is present on the bottom of the cap section 34Y can be released. Thus, the shutter 34d can move in the direction of opening or closing the toner discharge opening W.

0342The engaging end surface 34nl positioned in the wide width box section 34n is disposed as a section for restricting movement of the shutter 34d in the direction of opening the toner discharge opening W in the state in which the toner discharge opening W is closed.

0343<figref idref="f0039">Figs. 58B and 58C</figref> are views for explaining the relation between the engaging end surface 34n1 and the stopper section 34d22 at the shutter deforming section 34d2 side. At the time of closing of the toner discharge opening W illustrated in <figref idref="f0039">Fig. 58C</figref>, since the shutter deforming section 34d2 at the shutter 34d side in the inclined state as the initial state, the stopper section 34d22 positioned at the inclined free end faces the engaging end surface 34n1, and the shutter 34d cannot move independently. Thus, the state in which the toner discharge opening W is not carelessly opened is maintained.

0344Further, as illustrated in <figref idref="f0037">Figs. 56B</figref> and <figref idref="f0039">58B</figref>, when the shutter 34d has moved in the direction of opening the toner discharge opening W, the front end 34d1d of the main shutter section 34dl in the moving direction comes in contact with the engaging end surface 34n1, and thus the moving position of the main shutter section 34dl can be specified. <figref idref="f0039">Fig. 58C</figref> illustrates the case in which the shutter 34d has moved in the direction of closing the toner discharge opening W. In this case, the free end section of the shutter deforming section 34d2 becomes inclined, and so the stopper section 34d22 positioned at the free end section comes in face contact with the engaging end surface 34nl. Thus, movement of the shutter 34d is stopped unless the stopper release section 34d21 is pushed up.

0345The seal material 36 is composed of a rectangular parallelepiped body attached to the main shutter section 34d1. As the seal material 36 hits against the rib W1 illustrated in <figref idref="f0035">Fig. 54</figref>, the end section is folded and rides up, and a section other than the end section comes into press contact with the rib W1 and thus is deflectively deformed toward the toner discharge opening W in the fractional contact state. The seal material 36 is an elastic seal made of a flexible material. As the material, a high-density microcell urethane sheet is employed in view of sliding property and elasticity of the surface.

0346The seal material 36 has the length (the length indicated by symbol L1 in <figref idref="f0038">Fig. 57A</figref>) at which the leading end in the direction of closing the toner discharge opening W by the shutter 34d protrudes to the outer side further than the leading end of the main shutter section 34d1. The protruding leading end section is a section that easily rides up when hitting against the rib W1 disposed at the circumferential edge of the toner discharge opening W.

0347The shutter 34d is stored inside the wide width box section 34n positioned in the lower portion of the large diameter cylindrical section of the cap section 34Y and slidably moves.

0348In the wide width box section 34n, among four wall surfaces disposed at the side surface, two wall surfaces facing in the longitudinal direction (the shaft direction of the cap section cylinder) are opened. Particularly, since the wall surface is partially left on the corner at the bottom side, an opening extending in the horizontal direction is formed on most of the wall surface at the toner discharge opening W side. The opening is formed such that two surfaces of the side surface and the bottom surface at the toner discharge opening W side in the longitudinal direction of the wide width box section 34n are cut out.

0349Meanwhile, in <figref idref="f0036">Figs. 55, 55A</figref>, <figref idref="f0037">56B</figref>, and <figref idref="f0039">58A</figref>, lateral protrusions 34c for restricting the posture of the cap section 34Y in the rotation direction in the image forming apparatus body 100 (the cap receiving section 73) are formed on both side sections of the cap section 34Y, respectively.

0350The lateral protrusions 34c are positioned on both sides in a right angle direction in the same plane as a column direction of the positioning holes 34a and 34b in the circumferential surface of the medium diameter cylindrical section, has a triangular shape in a planar view, and has the top section at the position away from the circumferential surface of the medium diameter cylindrical section from the head section of the cap section 34Y to the rear side.

0351In the inclined surface of the lateral protrusion 34c, a rising edge angle of an inclined piece positioned behind the top section is larger than a rising edge angle of an inclined piece positioned at the head section side of the cap section 34Y ahead of the top section.

0352The inclined piece at the head section is disposed at the cap receiving section 73 side and can move while contacting the lateral protrusions 34c with a thrusting member (not shown) that is subject to tucking behavior by urging of elastic force. That is, if a section having a small inclined angle, so-called inclined plane, faces the thrusting member when thrusting toward the thrusting member, the inclined plane can enter with respect to the thrusting member without any resistance. If the top section of the inclined plane goes beyond the thrusting member, the inclined surface at the rear side is engaged with the thrusting member, movement resistance from the thrusting member abruptly decreases directly after going beyond the thrusting member, and a feeling of resistance when fitted into the thrusting member, so-called click feeling, is caused.

0353In the present embodiment, of the inclined pieces of the later protrusion, the angle of the inclined piece at the head section side is set to 30°, and the angle of the inclined piece at the rear side is set to 45°.

0354In <figref idref="f0036">Figs. 55</figref>, <figref idref="f0037">56A</figref>, <figref idref="f0037">56B</figref>, and <figref idref="f0039">58A to 58C</figref>, reference numerals 34g and 34h are convex sections that are disposed on both ends of the bottom section of the cap section 34Y and are for securing incompatibility of the developer storage container 32Y (the developer storage container).

0355The convex sections 34g and 34h are sections for judging whether or not the mounting operation of the developer storage container 32Y on the developer storage container storage unit 70 is correct. If a fitting state on a fitting section (not shown) disposed at the developer storage container storage unit 70 side is normal, the developer storage container, in which toner of predetermined color is stored, specified at a predetermined position is mounted at that position, and it is judged that it has been correctly mounted. Thus, it is possible to prevent an erroneous operation, so-called erroneous setting, in which color of toner stored in the developer storage container is not mounted in a predetermined mounting section.

0356Meanwhile, the shutter 34d can be maintained in the state in which the toner discharge opening W is closed by the body side shutter closing mechanism 73d illustrated in <figref idref="f0040 f0041 f0042">Figs. 59 to 62D</figref>. The body side shutter closing mechanism 73d is disposed to solve a problem in that the toner container 32Y is extracted from the apparatus body 100 while the toner discharge opening W is not completely closed, for example, at the time of replacement of the developer storage container.

0357In <figref idref="f0040">Fig. 59</figref>, the body side shutter closing mechanism 73d (a shutter sandwiching mechanism) is disposed at the bottom section inside the cap receiving section 73 and at the upstream side of the toner discharge opening W in the mounting direction of the developer storage container 32Y.

0358In <figref idref="f0040">Fig. 59</figref>, the body side shutter closing mechanism 73d is a pair of horseshoe shaped members disposed to face each other in the left-right direction of <figref idref="f0040">Fig. 59</figref> and is configured to be rotatable on a support shaft 73d3 in which a torsion coil spring is installed.

0359The body side shutter closing mechanism 73d (the shutter sandwiching mechanism) includes a first sandwiching section 73d1 formed on one end side and a second sandwiching section 73d2 formed on the other end side.

0360In the sandwiching sections, at the time of the opening/closing operation of the shutter 34d in the developer storage container 32Y, the engaged protruding section 34dlb of the shutter 34d is sandwiched by the second sandwiching members 73d2, and a vertical surface (the surface where an outgoing line leading end section of symbol 34YG in <figref idref="f0040">Fig. 60</figref> is positioned) of the guide rail 34YG (see <figref idref="f0036">Figs. 55</figref>, <figref idref="f0037">56A</figref>, <figref idref="f0037">56B</figref>, and <figref idref="f0039">58A to 58C</figref>) of the cap section 34Y is sandwiched by the first sandwiching members 73d1 (the state illustrated in <figref idref="f0040">Fig. 60</figref>). At the time of the opening/closing operation of the shutter 34d, the postures of the shutter 34d of the cap receiving section 73 and the cap section 34Y are decided, and thus the opening/closing operation can be smoothly performed.

0361<figref idref="f0040 f0041">Figs. 59 to 61</figref> are views illustrating an operation of the body side shutter closing mechanism 73d (the shutter sandwiching mechanism) when opening or closing the shutter 34d.

0362At the time of the opening operation of the shutter 34d, as illustrated in <figref idref="f0040">Fig. 59</figref>, in accompany with the mounting operation of the developer storage container 32Y in a white arrow direction, the first sandwiching members 73d1 first come in contact with a leading end 34YG1 (see <figref idref="f0036">Figs. 55</figref>, <figref idref="f0037">56A</figref>, <figref idref="f0037">56B</figref>, and <figref idref="f0039">58A to 58C</figref>) of the guide rail 34YG of the shutter 34d, and then, as will be described later, the second sandwiching members 73d2 come in contact with the protrusions 34d1b1 positioned in the engaged protruding sections 34dlb of the shutter 34d.

0363As illustrated in <figref idref="f0040">Fig. 60</figref>, when the mounting operation of the developer storage container 32Y proceeds in the white arrow direction, the body side shutter closing mechanism 73d (the shutter sandwiching mechanism) rotates on a support shaft section 73d3.

0364When the body side shutter closing mechanism 73d rotates, the first sandwiching members 73d1 sandwich the vertical surfaces (the surfaces where an outgoing line leading end section of symbol 34YG in <figref idref="f0040">Fig. 60</figref> is positioned) of the guide rails 34YG of the cap section 34Y, and the second sandwiching members 73d2 sandwich the side wall surfaces by coming in face contact with the side wall surfaces of the main shutter section 34dl where the base ends of the engaged protrusion 34dlb are positioned while being engaged with the protrusions 34d1b1 positioned in the engaged protruding section 34d1b of the shutter 34d.

0365Thereafter, even though not shown, the shutter 34d comes in contact with the wall section formed around the toner feeding opening at the cap receiving section 73 side and so stops movement in the mounting direction. Then, the vertical surface of the guide rail 34YG is sandwiched by the first sandwiching sections 73d1, and movement of the shutter 34d in the cap receiving section 73 is restricted (the shutter 34d does not absolutely move in the longitudinal direction).

0366In the state in which movement of the shutter 34d is restricted, when the developer storage container 32Y moves in the mounting direction, the shutter 34d whose movement in the mounting direction is stopped moves in a direction relative to movement of the cap section 34Y in the mounting direction. Further, when the cap section 34Y moves to the front side in the mounting direction further than the shutter 34d whose movement is stopped, the toner discharge opening W is opened as illustrated in <figref idref="f0041">Fig. 61</figref>.

0367At this time, as illustrated in <figref idref="f0041">Fig. 61</figref>, the vertical surfaces of the cap section 34Y are sandwiched by first sandwiching members 73d1, and the protrusions 34d1b1 positioned in the engaged protruding section 34dlb of the shutter 34d are engaged by second sandwiching members 73d2. Since the opening operation of the shutter 34d is performed in the state in which the shutter 34d is sandwiched, the postures of the shutter 34d and the cap section 34Y in the cap receiving section 73 are decided, and thus the opening/closing operation can be smoothly performed.

0368Meanwhile, when extracting (separating) the developer storage container 32Y from the developer storage container storage unit 70 (the cap receiving section 73), the operation is performed in a procedure reverse to the mounting procedure. That is, the operation of the body side shutter closing mechanism 73d (the shutter sandwiching mechanism) accompanying with the closing operation of the shutter 34d is performed in order of <figref idref="f0041">Figs. 61</figref>, <figref idref="f0040">60, and 59</figref>.

0369The seal state of the seal member 36 on the toner discharge opening W at the time of the opening/closing operation of the shutter will be described in connection with the movement position of the shutter 34d with reference to <figref idref="f0042">Figs. 62A to 62D</figref>.

0370<figref idref="f0042">Fig. 62A</figref> illustrates the state in which the toner discharge opening W of the cap 34 is closed by the shutter 34d. In this state, since the developer storage container is not loaded on the cap receiving section 73, the shutter 34d closes the toner discharge opening W. Since the seal material 36 is in press contact with the rib W1 positioned at the circumferential edge of the toner discharge opening W, the state in which the shutter 34d is in close contact with the toner discharge opening W is maintained. A dotted line in <figref idref="f0042">Fig. 62A</figref> represents the state in which the stopper release section 34d21 of the shutter 34d is pushed up by the stopper release urging section 72b at the cap receiving section 73 side. The shutter deforming section 34d2 is deflectively deformed from the inclined state to the horizontal state. The stopper section 34d22 positioned at the free end of the shutter deforming section 34d2 is released from engagement with the engaging end surface 34nl positioned in the wide width box section 34n that is at the bottom side of the cap section 34Y as illustrated in <figref idref="f0037">Figs. 56A and 56B</figref>.

0371Thus, as described in <figref idref="f0040 f0041">Figs. 59 to 61</figref>, it can move up to the position where the engaged protruding section 34dlb at the shutter 34d side is sandwiched by the second sandwiching members 73d2 of the body side shutter closing mechanism 73d. As described in <figref idref="f0040">Fig. 59</figref>, movement of the shutter 34d in the mounting direction is restricted, whereas the cap section 34Y can move in the mounting direction, so that the toner discharge opening W is opened, and the state of <figref idref="f0042">Fig. 62B</figref> is obtained. <figref idref="f0042">Fig. 62B</figref> illustrates the state in which the developer storage container is inserted toward the cap receiving section 73.

0372<figref idref="f0042">Fig. 62C</figref> illustrates a state of a section indicated by symbol C in <figref idref="f0042">Fig. 62B</figref>, that is, a state directly before the toner container starts an removing operation from the main body, and the shutter 34d starts to close the toner discharge opening W during the operation. In <figref idref="f0042">Fig. 62C</figref>, when the shutter 34d further moves in the direction of closing the toner discharge opening W, the corner (a ridgeline section) of the seal material 36 at the leading end side hits against the rib W1 positioned at the circumferential edge of the toner discharge opening W and so gets caught (ride up) between the rib W1 and the upper seal surface.

0373<figref idref="f0042">Fig. 62D</figref> illustrates the state in which the toner discharge opening is completely closed by the shutter 34d, At the time of closing completion, the corner of the seal material 36 at the leading end side gets caught in and comes in close contact with the rib W1 side. The leading end surface of the seal material 36 is pulled by the caught ridgeline section and deformed, and rides up to cover the contact section between the rib W1 and the seal material 36 when the cap section 34Y is viewed from the front.

0374As a result, since the toner discharge opening W is sealed by the seal material 36 until the developer storage container is completely mounted, the toner can be prevented from carelessly leaking from the toner discharge opening W.

0375The shutter mechanism according to the present thirteenth embodiment is the invention for solving the above mentioned third problem. In the present embodiment, by the configuration in which the rib W1 is disposed on the circumferential edge for the toner discharge opening W used as the existing component and the configuration of the seal material 36 having a section that gets caught by hitting against the rib W1 for the seal material used as the existing component, adhesion on the toner discharge opening increases without adding any other component, and so leak of the toner can be prevented with a high degree of certainty.

0376Particularly, since the toner discharge opening W has the hexagonal shape, the leading end of the seal material 36 concentratedly receives a load causing turning-up and is easily turned up, and turning-up can be caused while alleviating sliding resistance in the entire end section in continuity with the top section of the hexagon on which the load is concentrated. Thus, adhesion on the entire circumferential edge of the toner discharge opening W can be secured.

Fourteenth Embodiment

0377Next, a toner container in which both techniques of the shutter configuration mentioned in the toner container according to the thirteenth embodiment and the ID chip 535 according to the fourth embodiment are mounted will be described as a fourteenth embodiment.

0378A target configuration is a configuration related to the body side shutter closing mechanism 73d that has been described in <figref idref="f0040 f0041 f0042">Figs. 60 to 62D</figref>.

0379<figref idref="f0043">Fig. 63</figref> is a perspective view viewed from the front right side in an insertion direction of a cap 2134Y in the state in which the shutter 34d is closed, and <figref idref="f0044">Fig. 64</figref> is a perspective view viewed from the front left side in the insertion direction of the cap 2134Y in the state in which the shutter 34d is opened. These figures are different from the previous drawings in the following points.

0380In <figref idref="f0043">Fig. 63</figref>, unlike the configuration illustrated in <figref idref="f0035">Fig. 54</figref>, a front cover 2134P for preventing falling of the ID chip 535 loaded into the concave section 34t is disposed on the front surface of the cap 2134Y.

0381A configuration for mounting the front cover 2134P includes a heat calking pin 2134P10 disposed, on the front surface of the cap 2134Y, below the front surface center and a pair of main and sub reference pins 734S3 that are disposed at the positions different from the heat calking pin 2134P10 while sandwiching the concave section 34t as illustrated in <figref idref="f0044">Fig. 65</figref>. After the front surface cover 2134P is fixed, the heat calking pin 2134P10 becomes a state in which the leading end is crushed by a jig while being heated, but a non-crushed state is illustrated in <figref idref="f0044 f0045 f0046 f0047 f0048">Figs. 65 to 69</figref>.

0382In the front surface cover 2134P, holes into which the pins 2134P10 and 734S3 are inserted and an opening that exposes part of the ID chip 535 to the outside are formed, respectively.

0383By fitting the main reference pin 734S3 and the sub reference pin 734S3 into and inserting the heat calking pin 2134P10 into, the front surface cover 2134P is positioned in the state in which the ID chip 535 is exposed to the outside. The heat calking pin 2134P10 is heated and compressed, so that the front surface cover 2134P is fixed to the front surface of the cap 2134Y.

0384In the holes, at the front surface cover 2134P side, into which the pins are fitted, one of the reference pins is a round hole, and the other is an elongate hole, a longitudinal direction of which is horizontal. Further, the insertion hole of the heat calking pin 2134P10 has the diameter slightly larger than the heat calking pin 2134P10.

0385By the fixing state, even if the toner container 2132Y is inserted into or separated from the toner container storage unit, the ID chip 535 does not fall off, and communication or electrical connection of the ID chip exposed to the outside through the opening can be performed.

0386Meanwhile, a structure related to the body side shutter closing mechanism 73d includes a guide rail 2134YG disposed at the side surface of the narrow width box 34Y1 of the cap 2134Y.

0387The guide rail 2134YG has a configuration different from the guide rail 34YG illustrated, for example, in <figref idref="f0036">Fig. 55</figref>. As illustrated in <figref idref="f0043">Figs. 63</figref> and <figref idref="f0044">64</figref>, the guide rail 2134YG includes a protruding section 2134YG3 that is configured to protrude to the front side further than the leading end surface of the narrow width box section 34Y1 and have a protruding portion rounding toward the central side. The protruding sections 2134YG3 are symmetrically disposed on both sides of the narrow width box 34Y1.

0388Further, as a configuration different from the configurations of the above embodiments, as illustrated in <figref idref="f0045">Fig. 66</figref>, at the position (the position indicated by a reference numeral 2134P3) facing the engaged protruding section 34d12b of the shutter 34d in the circumferential surface of the medium diameter cylindrical section 34Y2, formed is a concave section that has the outer diameter smaller than the outer diameter of the medium diameter cylindrical section 34Y2. The circumferential surface 2134P3 that forms the concave section is configured not to interfere with turning of a sandwiching member 73d2 disposed in the body side shutter closing mechanism 73d illustrated in <figref idref="f0040">Fig. 59</figref>.

0389In this configuration, when the cap 2134Y is loaded on the cap receiving section 73 of the apparatus body in the same procedure as illustrated in <figref idref="f0040 f0041">Figs. 59 to 61</figref>, the cap 2134Y is sandwiched by the body side shutter closing mechanism 73d. <figref idref="f0046 f0047 f0048">Figs. 67 to 69</figref> are views corresponding to <figref idref="f0040 f0041">Figs. 59 to 61</figref> illustrating the loading state of the cap section 34Y used in the above configuration.

0390At the time of the opening operation of the shutter 34d, first, as illustrated in <figref idref="f0046">Fig. 67</figref>, in accompany with the mounting operation of the developer storage container 32Y in the white arrow direction, the first sandwiching members 73d1 come in contact with the protruding sections 2134YG3.

0391Thereafter, as illustrated in <figref idref="f0047">Fig. 68</figref>, when the mounting operation of the developer storage container 32Y proceeds in the white arrow direction, the body side shutter closing mechanism 73d (the shutter sandwiching mechanism) is pushed by the protruding sections 2134YG3 and so rotates on the support shaft section 73d3.

0392When the body side shutter closing mechanism 73d rotates, the first sandwiching members 73d1 sandwich the vertical surfaces of the guide rails 2134YG continuing from the protruding section 2134YG3, and the second sandwiching members 73d2 sandwich the side wall surfaces of the main shutter section 34d1 while being engaged with the protrusions 34d1b1 positioned in the engaged protruding section 34dlb of the shutter 34d.

0393Thereafter, the shutter 34d comes in contact with the wall section (not shown) formed around the toner feeding opening at the cap receiving section 73 side and so stops movement in the mounting direction. At this time, the vertical surfaces of the guide rails 2134YG are sandwiched by the first sandwiching sections 73d1.

0394In the state in which movement of the shutter 34d is stopped, when the toner container 2132Y moves in the mounting direction, the shutter 34d whose movement in the mounting direction is stopped relatively moves when viewed from the cap section 2134Y, and the narrow width box section 34Y12 of the cap section 2134Y moves to the front side in the mounting direction further than the shutter member 34d. By the relative movement, as illustrated in <figref idref="f0048">Fig. 69</figref>, the toner discharge opening W is opened.

0395At this time, as illustrated in <figref idref="f0041">Fig. 61</figref>, the vertical surfaces of the cap section 2134Y are sandwiched by the first sandwiching members 73d1, and the protrusions 34dlbl positioned in the engaged protruding section 34dlb of the shutter 34d are engaged by the second sandwiching members 73d2. Since the opening operation of the shutter 34d is performed in the state in which the shutter 34d is sandwiched, the postures of the shutter 34d and the cap section 2134Y in the cap receiving section 73 are decided, and thus the opening/closing operation of the shutter 34d can be smoothly performed.

0396Meanwhile, when extracting (separating) the developer storage container 2132Y from the developer storage container storage unit 70 (the cap receiving section 73), the operation is performed in a procedure reverse to the mounting procedure. That is, the operation of the body side shutter closing mechanism 73d (the shutter sandwiching mechanism) accompanying with the closing operation of the shutter 34d is performed in order of <figref idref="f0048">Figs. 69</figref>, <figref idref="f0047">68</figref>, and <figref idref="f0046">67</figref>.

0397In the configuration illustrated in <figref idref="f0044">Fig. 64</figref>, since the protruding section 2134YG3 that is present at the front end of the guide rail 2134YG protrudes to the front side further the front surface of the narrow width box section 34Y12, turning start timing of the body side shutter closing mechanism 73d is delayed. That is, since the protruding section 2134YG3 protrudes from the front surface of the narrow width box section 34Y12 to the outside, when the cap section 2134Y is extracted, a time period when turning of the first sandwiching section 73dl is stopped by the protruding section 2134YG3 is lengthier, and the shutter 34d remains sandwiched for a longer time compared to when the protruding section 2134YG3 is not disposed.

0398When the cap section 2134Y moves in the extracting direction, since the first sandwiching section 73d1 faces the engaged protruding section 34dl of the shutter 34d, the non-turnable state is maintained. For this reason, a protrusion amount of the protruding section 2134YG3 is set so that the body side shutter closing mechanism 73d can be maintained in the non-turnable state until the shutter 34d is completely closed, and sandwiching of the guide rail 2134YG by the first sandwiching section 73d1 can be released when the shutter 34d completely closes the toner discharge opening W.

0399Since the engaged protruding sections 34dlb at the shutter 34d side are sandwiched by the second sandwiching sections 73d2 until the toner discharge opening W is completely closed by the shutter 34d, when the cap 34Y moves in the extracting direction, the shutter 34d traverses the toner discharge opening W in the sandwiched state and so closes the toner discharge opening W.

0400Next, a description will be made in connection with features of the toner used in the developer feeding device as follows.

0401As the toner contained in the toner containers 32Y, 32M, 32C, and 32K, toner formed so that the following relations hold true: <maths id="math0001" num="(1)"><math display="block"><mn>3</mn><mo>≤</mo><mi>Dv</mi><mo>≤</mo><mn>8</mn></math><img file="EP2980656B1_D0001.tif" /></maths><maths id="math0002" num="(2),"><math display="block"><mn>1.00</mn><mo>≤</mo><mi>Dv</mi><mo>/</mo><mi>Dn</mi><mo>≤</mo><mn>1.40</mn></math><img file="EP2980656B1_D0002.tif" /></maths> where Dv (µm) represents a volume-average particle diameter, and Dn (µm) represents a number-average particle diameter. A toner particle is selected according to an image pattern in the developing process and excellent image quality is maintained, and satisfactory developing capability is maintained even if the toner is agitated for a long time in the developing device. Moreover, the toner can be efficiently and reliably conveyed without blocking the toner supply path.

0402The volume average particle diameter and the number average particle diameter of toner can be measured by using a typical device such as a Coulter Counter type particle diameter distribution measuring device: Coulter Counter-TA-II (manufactured by Coulter Electronics Limited); or Coulter Multisizer II (manufactured by Coulter Electronics Limited).

0403Furthermore, in the present embodiment, as toner contained in the developer storage containers 32Y, 32M, 32C, and 32K, used is substantially spherical toner that is formed so that a shape factor SF-1 is in a range of 100 to 180 and a shape factor SF-2 is in a range of 100 to 180. As a result, high transfer efficiency is maintained, and reduction in cleaning performance is suppressed. Moreover, the toner can be efficiently and reliably conveyed without blocking the toner supply path such as the tube 71.

0404Here, the shape factor SF-1 represents the sphericity of the toner particle and obtained by the following equation. <maths id="math0003"><math display="block"><mi>SF</mi><mo>−</mo><mn>1</mn><mo>=</mo><mfenced><mi mathvariant="normal">M</mi><mn>2</mn><mo>/</mo><mi mathvariant="normal">S</mi></mfenced><mo>×</mo><mfenced><mn>100</mn><mi mathvariant="normal">π</mi><mo>/</mo><mn>4</mn></mfenced></math><img file="EP2980656B1_D0003.tif" /></maths>

0405In the above equation, M is the maximum particle diameter (the largest particle diameter in uneven particle diameters) in a project plane of the toner particle, and S is a project area of the toner particle. Therefore, the toner particle whose shape factor SF-1 is 100 is perfectly spherical, and the degree of sphericity lowers as it becomes greater than 100.

0406The shape factor SF-2 represents irregularity of the toner particle and obtained by the following equation. <maths id="math0004"><math display="block"><mi>SF</mi><mo>−</mo><mn>2</mn><mo>=</mo><mfenced><mi mathvariant="normal">N</mi><mn>2</mn><mo>/</mo><mi mathvariant="normal">S</mi></mfenced><mo>×</mo><mfenced><mn>100</mn><mo>/</mo><mn>4</mn><mi mathvariant="normal">π</mi></mfenced></math><img file="EP2980656B1_D0004.tif" /></maths>

0407In the above equation, N is the circumferential length in the project plane of the toner particle, and S is the project area of the toner particle. Therefore, the toner particle whose shape factor SF-2 is 100 has no irregularity and the irregularity becomes larger as it becomes greater than 100.

0408The shape factor SF-1 and the shape factor SF-2 are obtained by photographing the toner particle by a scanning electron microscope "S-800" (manufactured by Hitachi, Ltd.) and analyzing the photograph of the toner particle by an image analyzer "LUSEX3" (manufactured by Nireco Corp.).

0409In the first to seventh embodiments and the eleventh to fourteenth embodiments, only toner (one component developer) is contained in the toner container (designated as 32Y, 32M, 32C, and 32K) as the developer container. However, as for an image forming apparatus that appropriately supplies the developing device with a two component developer composed of toner and a carrier, the two component developer can be contained in the toner container (the developer container). Even in these cases, the same effects as in the above embodiments can be obtained.

0410In the first to seventh embodiments and the tenth to fourteenth embodiments, some or all of image forming units 6Y, 6M, 6C, and 6K can be replaced with process cartridges. Even in this case, the same effects as in the above embodiments can be obtained.

0411Further, in the first to fifth embodiments and the tenth to fourteenth embodiments, by rotatably configuring the container body 33Y, a configuration has been made to convey the toner contained in the container body 33Y toward the opening A. On the other hand, as in the sixth embodiment described with reference to <figref idref="f0025">Figs. 38 and 39</figref>, the toner contained in the container body 1033Y may be conveyed toward the opening A such that the container body 1033Y is configured to be non-rotatably held on the toner container storage unit 70 together with the cap section 1034Y, and a conveying member (for example, a conveying member that includes a plurality of conveying blade members installed on a shape section and rotates in a predetermined direction) that conveys the toner toward the opening A inside the container body 1033Y is installed. Even in this case, the same effects as in the above embodiments can be obtained.

0412Further, in the above embodiments, in the substrate (designated as 35b or 535b) of the ID chip (designated as 35 or 535), a plurality of metallic pads 35a have been arranged in line in the vertical direction so that the position in the longitudinal direction is not misaligned. On the other hand, in the substrate of the ID chip, a plurality of metallic pads 35a may be arranged in the vertical direction so that the position in the longitudinal direction is alternately misaligned in a zigzag form. In this case, in order to conform to the metallic pads 35a arranged in the zigzag form, a plurality of body side terminals (designated as 73e2 or 573e2) in the connector (designated as 73e or 573e) are also arranged in the zigzag form. Even in this case, the same effects as in the above embodiments can be obtained.

0413Furthermore, in the above embodiments, the present invention has been applied to the ID chip (the information storage device) disposed in the toner container 32Y (the developer container) or the like as the removable device removably installed on the image forming apparatus body 100 or the like. However, the application of the present invention is not limited thereto, and the present invention can be applied even to any other removable device removably installed on the image forming apparatus body 100 or the like as long as the information storage device is installed in the removable device similarly to the above embodiments. For example, in the image forming apparatus 100 illustrated in <figref idref="f0001">Fig. 1</figref>, even when the information storage device is installed in the process cartridges 6Y, 6M, 6C, and 6K as the removable device, the fixing device 20 (the fixing unit) as the removable device, the intermediate transfer unit 15 as the removable device, or the like, the present invention can be applied to each of them similarly to the above embodiments. Even in these cases, the same effects as in the above embodiments can be obtained.