Image reading apparatus and image reading system

TECHNICAL FIELD

0001The present invention relates to a technology for setting a scan condition for a scanning operation of an image reading apparatus.

BACKGROUND

0002From document <patcit id="pcit0001" dnum="JP9204515A"><text>JP 09-204515 A</text></patcit> there is known a network scanner device which is connected to a network. A client terminal previously sends the scanning condition information on the reading resolution, etc., to the network scanner device. An operator selects the scanning condition information out of the menus of an operating panel via the network scanner device. Thereafter, a scanning process is performed with the selected scanning condition and the scan data are automatically sent to the client terminal.

0003From document <patcit id="pcit0002" dnum="US20110090543A1"><text>US 2011/0090543 A1</text></patcit> there is known an image reading device which receives setting information for a scanning operation from a computer connected to the image forming device via a network. The image forming device displays on a display section the setting information acquired from the computer and the setting information stored in the image forming device. Then, the user selects necessary setting information as setting information from among the setting information displayed on the display unit. The scanning process is performed with the selected setting information.

0004There have been proposed a related-art technology of registering a plurality of scan condition files in a network scanner capable of communication with a plurality of hosts through a network, and allowing any one of the plurality of scan condition files to be selected according to an instruction from an operation unit of the network scanner or a host (see <patcit id="pcit0003" dnum="JP9284448A"><text>JP-A-09-284448</text></patcit>).

SUMMARY

0005In some cases, it is desired to use an image reading apparatus capable of performing communication with an external apparatus such as a host or an external memory to use a scan condition registered in the external apparatus. However, according to the above-described related-art technology, always, only the scan condition registered on the image reading apparatus side is available. Thus, the convenience of the image reading apparatus may be low.

0006Illustrative aspects of the present invention provide a technology capable of improving convenience as compared to the technology according to the related art in which only the scan condition registered on the image reading apparatus is available.

0007According to the present invention, the user can use the input operation unit of the image reading apparatus to select whether to make the reading device perform the scanning operation preferentially on the basis of the scan condition received from the external apparatus or make the reading device perform the scanning operation preferentially on the basis of the scan condition received by the input operation unit. Therefore, it is possible to improve convenience in reading images, as compared to the related art in which only the scan condition registered on the image reading apparatus side is usable.

BRIEF DESCRIPTION OF THE DRAWINGS

0008<ul id="ul0001" list-style="none" compact="compact"><li><figref idref="f0001">FIG. 1</figref> is a block diagram illustrating an electrical configuration of an image reading system according to an exemplary embodiment of the present invention;</li><li><figref idref="f0002">FIG. 2</figref> is a view illustrating a relation between user's input operation and processes of a multi-function device and a terminal device;</li><li><figref idref="f0003">FIG. 3</figref> is a flow chart illustrating a scanning process;</li><li><figref idref="f0004">FIG. 4</figref> is a schematic view illustrating transitions of display screens on a display part;</li><li><figref idref="f0005">FIG. 5</figref> is a flow chart illustrating a selection receiving process;</li><li><figref idref="f0006">FIG. 6</figref> is a view illustrating a relation among a registered scan condition, an input scan condition, and a scan condition for execution; and</li><li><figref idref="f0007">FIG. 7</figref> is a schematic view illustrating transitions of display screens on a display unit according to a modification.</li></ul>

DETAILED DESCRIPTION

<Exemplary Embodiments>

0009Exemplary embodiments of the present invention will now be described with reference to the Drawings.

0010An image reading system 1 according to an exemplary embodiment will be described with reference to <figref idref="f0001 f0002">FIGS. 1 to 2</figref>.

1. Electrical Configuration of Image Reading System

0011As shown in <figref idref="f0001">FIG. 1</figref>, the image reading system 1 includes a plurality of terminal devices 10 and a multi-function device 30. <figref idref="f0001">FIG. 1</figref> illustrates four terminal devices 10 (a first terminal device 10A, a second terminal device 10B, a third terminal device 10C, and a fourth terminal device 10D), which have a common basic configuration. For this reason, an internal configuration of only the first terminal device 10A is shown, and the internal configurations of the second terminal device 10B, the third terminal device 10C, and the fourth terminal device 10D are omitted. Incidentally, the terminal devices 10 are examples of an external apparatus, and the multi-function device 30 is one example of an image reading apparatus.

1-1. Terminal Device

0012The first terminal device 10A may include, for example, a personal computer or a server computer. The first terminal device 10A includes a control unit 11, a memory 12, an operation unit 13, a display unit 14, a network interface 15, and the like. The control unit 11 includes a CPU 11A, a ROM 11B, and a RAM 11C. The memory 12 is a non-volatile memory such as a hard disk drive (HDD). The operation unit 13 includes a keyboard, a pointing device, and the like. The display unit 14 includes a liquid crystal display and the like. The network interface 15 is connected with the second to fourth terminal devices 10B to 10D and the multi-function device 30 through a communication line 20 in a wired or wireless way such that communication is possible.

0013In the ROM 11B or the memory 12, there are stored an OS, applications capable of processing read data from the multi-function device 30, applications capable of generating image data for print, a printer driver for controlling the multi-function device 30, and various programs such as a scan management program for performing a scan management process to be described below. In accordance with a program read from the ROM 11B or the memory 12, the control unit 11 controls the operation of the first terminal device 10A while storing process results in the RAM 11C.

1-2. Multi-Function Device

0014The multi-function device 30 can perform a plurality of functions, such s a scanner function, a copy function, and a print function, to form images. The multi-function device 30 includes a control unit 31, a reading device 32, a printing device 33, an operation unit 34, a universal serial bus (USB) interface 35, a network interface 36, a display unit 37, and the like. The control unit 31 includes a CPU 31A and a memory 31B. The memory 31B may include, for example, a ROM, a RAM, a NVRAM, a flash ROM, and the like.

0015In the memory 31B, there are recorded various programs for controlling the operation of the multi-function device 30, and an image reading program to be described below. The control unit 31 controls the operation of the multi-function device 30 according to a program read from the memory 31B. The reading device 32 includes, for example, a contact image sensor (CIS) or a charge-coupled drive image sensor (CCD). The reading device 32 can perform a scanning operation of reading images of documents set on a platen (not shown) and outputting read data according to the read image.

0016The printing device 33 prints images based on the read data from the reading device 32 or print data received from the terminal devices 10 onto sheets such as paper sheets or OHP sheets in an electrographic way or an inkjet way, for example. The operation unit 34 includes a plurality of buttons and the like, and can receive various kinds of input operation of a user. The display unit 37 includes a display part such as a liquid crystal display. The operation unit 34 and the display unit 37 are examples of an input operation unit, and may be a touch panel type in which it is possible to perform input operation by touching the display part.

0017The USB interface 35 allows an external apparatus such as a USB memory 40 shown in <figref idref="f0001">FIG. 1</figref> to be detachably connected thereto. The control unit 31 can access information stored in the USB memory 40 that is connected to the USB interface 35. The network interface 36 is connected to the terminal devices 10 and the like through the communication line 20 in a wired or wireless way such that the network interface 36 is capable of perform data communication with the terminal devices 10 and the like. The network interface 36 is one example of a data communication unit. The control unit 31 transmits data to the terminal devices 10 and the like, or receives data from the terminal devices 10 and the like, through the network interface 36.

2. Input Operation of User and Contents of Processes of Multi-Function Device and Terminal Device

0018<figref idref="f0002">FIG. 2</figref> sequentially shows a relation between input operation of the user and processes of the multi-function device 30 and the first terminal device 10A. For example, in STEP U1 shown in <figref idref="f0002">FIG. 2</figref>, when the user sets a document on the platen of the reading device 32 and performs input operation on the operation unit 34 to request performance of scanning, specifically, when the user pushes a scan key to select the scanner function from the plurality of functions of the multi-function device 30, the control unit 31 of the multi-function device 30 performs a scanning process shown in <figref idref="f0003">FIG. 3</figref>. In this case, the control unit 31 can select and perform any one of: a first reading mode to make the reading device 32 perform a scanning operation preferentially on the basis of a scan condition received from the first terminal device 10A; or a second reading mode to make the reading device 32 perform a scanning operation preferentially on the basis of a scan condition received by the operation unit 34.

2-1. Scanning Process

0019Specifically, the CPU 31A reads the image reading program from the memory 31B, and performs a scanning process. <figref idref="f0004">FIG. 4</figref> shows examples of transitions of screens displayed on the display part of the display unit 37 of the multi-function device 30 during the scanning process. First, in STEP S1 shown in <figref idref="f0002">FIGS. 2</figref> and <figref idref="f0003">3</figref>, the CPU 31A makes the display part of the display unit 37 display a function selection screen G1 (see <figref idref="f0004">FIG. 4</figref>). The scanner function may include various functions different from each other in their detailed processes, for example, 'Scan to File', 'Scan to E-mail', 'Scan to OCR', and 'Scan to Image' as shown in <figref idref="f0004">FIG. 4</figref>, and the contents of these functions will be described as follows.

0020The function 'Scan to File' is a function in which the multi-function device 30 transmits read data output from the reading device 32 to the terminal device 10, and the terminal device 10 stores the read data in the memory 12 or the like.

0021The function 'Scan to E-mail' is a function in which the multi-function device 30 transmits read data output from the reading device 32 to the terminal device 10, and the terminal device 10 attaches the read data to a mail displayed on the display unit 14.

0022The function 'Scan to OCR' ("OCR" is an abbreviation for "Optical Character Recognition") is a function in which the multi-function device 30 transmits read data output from the reading device 32 to the terminal device 10, and the terminal device 10 recognizes characters on a read image on the basis of the read data and converts the recognized characters into text data.

0023The function 'Scan to Image' is a function in which the multi-function device 30 transmits read data output from the reading device 32 to the terminal device 10, and the terminal device 10 makes the display unit 14 display a read image based on the read data.

0024Next, when confirming that the operation unit 34 has received a function selection instruction to select any one of the above-described functions on the function selection screen G1 (YES in STEP S2), the CPU 31A makes the display part display a terminal-device selection screen G2 (see <figref idref="f0004">FIG. 4</figref>) in STEP S3 shown in <figref idref="f0002">FIGS. 2</figref> and <figref idref="f0003">3</figref>. In the examples of <figref idref="f0002">FIGS. 2</figref> and <figref idref="f0004">4</figref>, the user selects the function 'Scan to File' in STEP U2. On the terminal-device selection screen G2, identification information items PC1 to PC4 of the four terminal devices 10 are displayed as choices.

0025Next, when confirming that the operation unit 34 has received a terminal-device selection instruction to select any one of the four terminal devices 10 on the terminal-device selection screen G2 (Yes in STEP S4), in STEP S5, the CPU 31A acquires compliance/non-compliance information relative to the selected terminal device 10 from the memory 31B. The compliance/non-compliance information is information on whether each terminal device 10 is compliant with the second reading mode. With respect to each of the above-described functions, compliance/non-compliance information of each terminal device 10 is managed. Specifically, when receiving a scan condition input to the multi-function device 30, the terminal device 10 determines whether an application capable of interpreting the scan condition can be started. As for such application, an application 'Control Center' provided by the applicant of the present invention can be exemplified. The non-compliance with the second reading mode means, for example, that such application has not been installed in the terminal device 10, or such application has been installed in the terminal device 10 but is set to not start even if receiving the scan condition.

0026Further, as shown by STEPS S30 and S31 in <figref idref="f0002">FIG. 2</figref>, the CPU 31A of the multi-function device 30 receives compliance/non-compliance information notified, that is, transmitted from each terminal device 10, and performs an information updating process of updating the compliance/non-compliance information stored in the memory 31B, with the received compliance/non-compliance information. In this case, as compared to a configuration in which compliance/non-compliance information is unable be updated, the multi-function device 30 can grasp changes between compliance and non-compliance information of each terminal device 10 with the second reading mode in real time and reflect the changes to a scanning process. Incidentally, in the present exemplary embodiment, when there is any change between the compliance and non-compliance of each terminal device 10 with the second reading mode, the corresponding terminal device 10 transmits changed compliance/non-compliance information to the multi-function device 30. Alternatively, the multi-function device 30 may ask each terminal device 10 for the compliance/non-compliance information and receive the compliance/non-compliance information, regularly or whenever necessary.

0027When acquiring the compliance/non-compliance information, in STEP S6, the CPU 31A performs a compliance determining process on the basis of the acquired compliance/non-compliance information. Specifically, the CPU 31A determines whether the terminal device 10 selected in STEP S4 is compliant with the second reading mode. In the examples of <figref idref="f0004">FIGS. 4</figref> and <figref idref="f0002">2</figref>, when the user selects the first terminal device 10A (having the identification information PC1) in STEP U3, the multi-function device 30 refers to the compliance/non-compliance information of the first terminal device 10A and determines whether the first terminal device 10A is compliant with the second reading mode in STEPS S5 and S6.

0028Then, the CPU 31A performs a performance determining process in which, when determining that the selected terminal device 10 is compliant with the second reading mode (YES in STEP S6), the CPU 31A allows performance of the second reading mode; whereas when determining that the selected terminal device 10 is not compliant with the second reading mode (NO in STEP S6), the CPU 31A prevents performance of the second reading mode. Therefore, it is possible to suppress the user from selecting the second reading mode although the terminal device 10 is not compliant with the second reading mode.

0029Specifically, when determining that the selected first terminal device 10A is compliant with the second reading mode (YES in STEP S6), the CPU 31A makes the display part display a second scan standby screen G4 as shown in <figref idref="f0004">FIG. 4</figref> in STEP S9 of <figref idref="f0002">FIGS. 2</figref> and <figref idref="f0003">3</figref>. On the second scan standby screen G4, a start scan button and an option change button are displayed. When receiving that the user has pushed the option change button through the operation unit 34 in STEP U4 (NO in STEP S10 and YES in STEP S11 in <figref idref="f0003">FIG. 3</figref>), in STEP S12 of <figref idref="f0003">FIG. 3</figref>, the CPU 31A performs a selection receiving process shown in <figref idref="f0005">FIG. 5</figref>.

2-2. Selection Receiving Process

0030In the selection receiving process, the CPU 31A receives a selection instruction representing whether to set the first reading mode or the second reading mode, through the operation unit 34. Specifically, in STEP S21 of <figref idref="f0002">FIGS. 2</figref> and <figref idref="f0005">5</figref>, the CPU 31A makes the display part display a first setting screen G5 shown in <figref idref="f0004">FIG. 4</figref>. On the first setting screen G5, a button for other options is displayed. When receiving through the operation unit 34 that the button for other options has been pushed by the user, in STEP S21 of <figref idref="f0002">FIGS. 2</figref> and <figref idref="f0005">5</figref>, the CPU 31A makes the display part display a second setting screen G6 shown in <figref idref="f0004">FIG. 4</figref>. On the second setting screen G6, a first-read-mode button and a second-read-mode button are displayed. Then, the user can push any one of the first-read-mode button and the second-read-mode button so as to select the first reading mode or the second reading mode.

0031When determining that the second reading mode has been selected on the basis of the selection instruction (STEP U5 of <figref idref="f0002">FIG. 2</figref>) (YES in STEP S22 of <figref idref="f0005">FIG. 5</figref>), the CPU 31A performs an input receiving process of receiving a scan condition for a scanning operation through the operation unit 34. Specifically, in STEP S23 of <figref idref="f0002">FIGS. 2</figref> and <figref idref="f0005">5</figref>, the CPU 31A makes the display part display a setting screen G7 of the second reading mode shown in <figref idref="f0004">FIG. 4</figref>. On the setting screen G7 of the second reading mode, option items of an input scan condition receivable in the input receiving process on the multi-function device 30 side are displayed.

0032As described above, in the present exemplary embodiment, after receiving a selection instruction to select the second reading mode, the CPU 31A makes the display part display option items of the input scan condition. Therefore, it is possible to suppress display of unnecessary images, as compared to a configuration in which option items of a second scan condition are displayed on the display part from before any selection instruction to select the second reading mode is received. Specifically, in the present exemplary embodiment, on the setting screen G7 of the second reading mode, only the option items of the second scan condition are displayed. Therefore, it is possible to suppress unacceptable scan conditions from being uselessly input in the input receiving process. The input scan condition is one example of a second scan condition.

0033On the setting screen G7 of the second reading mode shown in <figref idref="f0004">FIG. 4</figref>, as the option items of the input scan condition, for example, an option item relative to whether to make the reading device 32 generate read data in color or black and white, an option item relative to a resolution to be used to make the reading device 32 perform a scanning operation, and an option item relative to a file format for read data to be generated by the reading device 32 are displayed. In STEP U6 of <figref idref="f0002">FIG. 2</figref>, the user can perform input operation on the operation unit 34 to set or change a value of each of the option items of the input scan condition. Incidentally, it is preferable for the CPU 31A to be configured to perform the input receiving process on the basis of the input operation of the user, independently from the scanning process, register the input results in the memory 31B in advance, and display the registered values as default values for the option items of the input scan condition on the setting screen G7 of the second reading mode.

0034On the other hand, when determining that the first read mode has been selected (NO in STEP S22), in STEP S24, the display screen returns from the second setting screen G6 to the first setting screen G5. On the first setting screen G5, the items of the input scan condition are not displayed. Therefore, it is possible to suppress input scan conditions from being uselessly input by the user.

0035In a state in which the first setting screen G5 or the setting screen G7 of the second reading mode is displayed by the selection receiving process, when the user pushes a return button (not shown) of the operation unit 34 in STEP U6 of <figref idref="f0002">FIG. 2</figref> (YES in STEP S 13 of <figref idref="f0003">FIG. 3</figref>), in STEP S9 of <figref idref="f0002">FIGS. 2</figref> and <figref idref="f0003">3</figref>, the display screen returns to the second scan standby screen G4. Thereafter, when receiving through the operation unit 34 that the start scan button has been pushed in STEP U7 by the user (YES in STEP S10 of <figref idref="f0003">FIG. 3</figref>), the CPU 31A proceeds to STEP S 14.

0036When determining in STEP S6 of <figref idref="f0003">FIG. 3</figref> that the selected terminal device 10 is not compliant with the second reading mode (NO in STEP S6), in STEP S7, the CPU 31A makes the display part display a first scan standby screen G3 shown in <figref idref="f0004">FIG. 4</figref>. On the first scan standby screen G3, choices of both of the first reading mode and the second reading mode are not displayed. As described above, when it is determined that the selected terminal device 10 is not compliant with the second reading mode, the display part does not display a screen for selecting any one of the first reading mode and the second reading mode. Therefore, it is possible to suppress the second reading mode from being selected even though the selected terminal device 10 is not compliant with the second reading mode. When receiving that the user has pushed the start scan button on the first scan standby screen G3 through the operation unit 34 (YES in STEP S8 of <figref idref="f0003">FIG. 3</figref>), the CPU 31A proceeds to STEP S14.

2-3. Scanning Executing Process

0037When it is determined whether to perform the first reading mode or the second reading mode in the selection receiving process, the CPU 31A performs a scanning executing process of performing the selected read mode. Specifically, in STEP S14 of <figref idref="f0002">FIGS. 2</figref> and <figref idref="f0003">3</figref>, the CPU 31A notifies scan start to the terminal device 10 selected on the terminal-device selection screen G2. This scan start notification includes the read-mode selection result of the selection receiving process. When receiving the scan start notification, the CPU 11A of the terminal device 10 starts the application capable of interpreting the above-described input scan condition in STEP P1 of <figref idref="f0002">FIG. 2</figref>. When the selection result represents that the second reading mode has been selected, in STEP P2, the CPU 11A requests the multi-function device 30 to transmit the input scan condition.

0038In a case where the second reading mode has been selected in the selection receiving process (YES in STEP S 15), in STEP S16 of <figref idref="f0002">FIGS. 2</figref> and <figref idref="f0003">3</figref>, the CPU 31A of the multi-function device 30 performs a scan-condition transmitting process of transmitting option information on the input scan condition to the terminal device 10 in response to the input-scan-condition transmission request of the terminal device 10. When receiving the option information on the input scan condition, in STEP P3, the CPU 11A of the terminal device 10 sets a final scan condition for execution including the input scan condition and some option items of the registered scan condition registered in the memory 12 or the like in advance. The some option items of the registered scan condition are examples of a first scan condition.

0039<figref idref="f0006">FIG. 6</figref> illustrates a registered scan condition, an input scan condition, a scan condition for execution set on the basis of them, various option items for generating read data in the scan condition for execution, and option values of the various option items. In the case where the second reading mode has been selected in the multi-function device 30, the CPU 11A sets a combination of the input scan condition and option items of the registered scan condition which do not overlap with those of the input scan condition, as the scan condition for execution, as shown in <figref idref="f0006">FIG. 6</figref>. In other words, since the option items from the option item 'RESOLUTION' at the top of the scan condition for execution to the option item 'BACKGROUND COLOR REMOVAL' shown in <figref idref="f0006">FIG. 6</figref> overlap between the input scan condition and the registered scan condition, the option information on the input scan condition is preferentially set. In a case where an option item of the registered scan condition is not compatible with the input scan condition, some of the option values of the option items of the registered scan condition may be changed to an option value compatible with the input scan condition.

0040For example, a mode 'AutoCrop' is to read a plurality of documents placed on the platen by moving the reading device 32 in a sub scanning direction and extract read data of each of the documents as separate read data. In <figref idref="f0006">FIG. 6</figref>, the option item 'AutoCrop' of the registered scan condition is set to 'ON'. When the 'AutoCrop' mode is ON, a scanning process is performed in the largest read range in consideration of a possibility that there is a plurality of documents randomly placed on the platen. On the other hand, in the input scan condition, the option item 'AutoCrop' does not exist, and the option item 'DOCUMENT SIZE' is set to A4. Therefore, the option value of the option item 'DOCUMENT SIZE' of the input scan condition is not compatible with the option item 'AutoCrop' which is ON in the registered scan condition. For this reason, in the scan condition for execution, the option item 'AutoCrop' is set to 'OFF'. In this way, it is possible to suppress the contents of the input scan condition from being changed for performing the second reading mode in a case where any option item of the registered scan condition is not compatible with the input scan condition.

0041After setting the scan condition for execution in STEP P3 of <figref idref="f0002">FIG. 2</figref>, the CPU 11A of the terminal device 10 transmits a scan instruction including the scan condition for execution to the multi-function device 30 in STEP P4 of <figref idref="f0002">FIG. 2</figref>. Meanwhile, the CPU 31A of the multi-function device 30 performs a scan-instruction receiving process of receiving the scan instruction (see <figref idref="f0002">FIG. 2</figref>). Next, in STEP S17 of <figref idref="f0002">FIGS. 2</figref> and <figref idref="f0003">3</figref>, the CPU 31A performs the second reading mode according to the scan condition for execution included in the scan instruction while making the display part display a scanning screen G8 (see <figref idref="f0004">FIG. 4</figref>). Subsequently, the CPU 31A transmits read data to the terminal device 10 in STEP S18 of <figref idref="f0002">FIGS. 2</figref> and <figref idref="f0003">3</figref> and finishes the present scanning process. In the scan-instruction receiving process, the process of receiving the scan condition for execution is one example of a communication receiving process.

0042As described above, in the case where the second reading mode has been selected, the multi-function device 30 transmits the input scan condition to the terminal device 10 and receives the scan instruction including the input scan condition and some option items of the registered scan condition which are not receivable in the input receiving process. Therefore, the multi-function device 30 can assign the terminal device 10 the process of merging the registered scan condition and the input scan condition or processing them such that the option items of the registered scan condition are compatible with the input scan condition, and thus the process load on the multi-function device 30 can be reduced.

0043On the other hand, when the selection result included in the scan start notification represents that the first reading mode has been selected, the CPU 11A of the selected terminal device 10 transmits a scan instruction, including the registered scan condition set as the scan condition for execution, to the multi-function device 30, without requesting the multi-function device 30 to transmit the input scan condition. In other words, in the case where the first reading mode has been selected in the selection receiving process (NO in STEP S15), the CPU 31A of the multi-function device 30 does not transmit the input scan condition.

0044Next, the CPU 31A performs the communication receiving process of receiving the scan condition from the terminal device 10 so as to receive the registered scan condition included in the scan instruction. Subsequently, in STEP S17 of <figref idref="f0003">FIG. 3</figref>, the CPU 31A performs the first reading mode according to the registered scan condition while making the display unit display the scanning screen G8. Next, the CPU 31A transmits the read data to the terminal device 10 in STEP S18 of <figref idref="f0003">FIG. 3</figref> and finishes the present scanning process. Incidentally, even in the registered scan condition, the option value of the option item 'DOCUMENT SIZE' and the option value 'ON' of the option item 'AutoCrop' may be not compatible with each other. For example, in a case where the first reading mode is selected in the selection receiving process and the registered scan condition is set as the scan condition for execution, when the registered scan condition is as shown in <figref idref="f0006">FIG. 6</figref>, since the option item 'AutoCrop' is ON, the option value of the option item 'DOCUMENT SIZE' may be invalidated, even though the option item 'DOCUMENT SIZE' for determining the read range is set to a letter size.

0045As described above, after the selection instruction is received in the selection receiving process, the communication receiving process is performed. In other words, the communication receiving process is performed after whether to use the registered scan condition is determined in the selection receiving process. Therefore, it is possible to suppress the communication receiving process from being uselessly performed, as compared to a configuration in which the communication receiving process is performed before the selection instruction is received in the selection receiving process.

0046According to the present exemplary embodiment, the user can use the operation unit 34 of the multi-function device 30 to select whether to perform the first reading mode or the second reading mode. Therefore, it is possible to improve convenience in reading images, as compared to the related art in which only the scan condition registered on the multi-function device 30 side is usable.

0047Further, it is possible to perform the second reading mode on the basis of not only the input scan condition receivable in the input receiving process but also some option items of the registered scan condition receivable only on the terminal device side.

<Modification to Exemplary Embodiments>

0048While the present invention has been shown and described with reference to certain exemplary embodiments thereof, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the scope of the invention as defined by the appended claims.

0049In the above-described exemplary embodiments, the terminal devices 10 have been exemplified as the external apparatus. However, the external apparatus is not limited thereto. For example, the external apparatus may be an external memory such as the USB memory 40 shown in <figref idref="f0001">FIG. 1</figref>. Specifically, a scan condition may be stored in the USB memory 40 in advance, and the control unit 31 may receives the scan condition stored in the USB memory 40, in the communication receiving process or the like. In this case, the USB interface 35 is one example of the data communication unit.

0050In the above-described exemplary embodiments, the multi-function device 30 has been exemplified as the image reading apparatus. However, the image reading apparatus is not limited thereto. For example, the image reading apparatus may be a single scanner configured by removing at least the printing device 33 from the configuration of the multi-function device 30 of <figref idref="f0003">FIG. 3</figref>, a facsimile, or the like.

0051In the above-described exemplary embodiments, the multi-function device 30 receives a scan start instruction on the basis of user's input operation on the operation unit 34. However, the present invention is not limited thereto. The multi-function device 30 may be configured to receive a scan start instruction from the terminal device 10 based on user's input operation on the operation unit 13 of the terminal device 10.

0052In the above-described exemplary embodiments, in response to a scan start instruction, the multi-function device 30 transmits read data, output from the reading device 32, to the terminal device 10. However, the present invention is not limited thereto. For example, in response to a scan start instruction, the multi-function device 30 may store the read data in its own memory 31B or the USB memory 40, or display a read image based on the read data on an image display unit of the operation unit 34, or print the read image based on the read data on a sheet by the printing device 33, or perform other functions.

0053In the above-described exemplary embodiments, as an example of the compliance determining process, the control unit 31 determines whether the terminal device 10 is compliant with the second reading mode, on the basis of the compliance/non-compliance information stored on the multi-function device 30 side. However, the compliance determining process is not limited thereto. For example, as the compliance determining process, the terminal device 10 may determine whether the terminal device 10 is compliant with the second reading mode, according to whether compliance/non-compliance information representing that the terminal device 10 is compliant with the second reading mode has been stored on the multi-function device 30 side, or the control unit 31 may ask the terminal device 10 about whether the terminal device 10 is compliant with the second reading mode, without storing compliance/non-compliance information on the multi-function device 30 side.

0054In the above-described exemplary embodiments, in the input receiving process, only the second scan condition is displayed (see STEP S23 of <figref idref="f0005">FIG. 5</figref>, and the setting screen G7 of the second reading mode shown in <figref idref="f0007">FIG. 7</figref>). However, the present invention is not limited thereto. In the input receiving process, the first scan condition may also be displayed so that its option values are unchangeable. In this case, the user can check the option contents of the first scan condition in the stage of the input receiving process.

0055In the above-described exemplary embodiments, in the case where it is determined that the selected terminal device 10 is not compliant with the second reading mode, the CPU 31A makes the display part not display a screen including choices for the first reading mode and the second reading mode, so as to prevent execution of the second reading mode. However, the present invention is not limited thereto. While the start scan button is displayed as a choice for the first reading mode, a choice for the second reading mode may not be displayed to prevent performance of the second reading mode. In this case, it is possible to suppress the second reading mode from being selected in a case where the terminal device 10 is not compliant with the second reading mode.

0056For example, preferably, as shown in <figref idref="f0007">FIG. 7</figref>, after the terminal device 10 is selected, a selection screen G9 including only a choice for the first reading mode may be displayed, and when the corresponding choice is pushed, the selection screen G9 may transition to the first scan standby screen G3. Incidentally, in <figref idref="f0007">FIG. 7</figref>, in a case where it is determined that the selected terminal device 10 is compliant with the second reading mode, screen display may be performed as follows. After the terminal device 10 is selected, a selection screen G10 including choices for the first reading mode and the second reading mode may be displayed. In this case, when the second reading mode is selected, a second scan standby screen G11 may be displayed. Then, when a start scan button on the second scan standby screen G11 is pushed, the scanning operation is performed.

0057Alternative to the above-described exemplary embodiments, in the case where it is determined that the selected terminal device 10 is not compliant with the second reading mode, the CPU 31A may make the display part display a choice for the second reading mode but gray out the choice to prevent performance of the second reading mode. Further, the CPU 31A may display the display part display a choice for the second reading mode, but notify an error while invalidating selection of the choice for the second reading mode to prevent performance of the second reading mode, even if the corresponding choice is selected.

0058In the above-described exemplary embodiments, the terminal device 10 changes the first scan condition to contents compatible with the second scan condition, and the multi-function device 30 receives the scan instruction including the first scan condition compatible with the second scan condition, from the terminal device 10. However, the present invention is not limited thereto. On the multi-function device 30 side, when a first scan condition received from the terminal device 10 is not compatible with the second scan condition, the first scan condition may be changed to contents compatible with the second scan condition, and perform the second reading mode.

0059In the above-described exemplary embodiments, the control unit 31 includes one CPU. Alternatively, the control unit 31 may be configured to include a plurality of CPUs, or be composed of a hard circuit such as an application specific integrated circuit (ASIC) or the like, or be composed of a CPU and a hard circuit. In a case where the control unit 31 includes a plurality of CPUs and hard circuits, for example, some or all of various processes such as the information changing process, the compliance determining process, the performance determining process, the selection receiving process, the input receiving process, the scanning executing process, the scan-condition transmitting process, the scan-instruction receiving process, the communication receiving process, and the like may be assigned to and performed in the plurality of CPUs and the like.

0060In the above-described exemplary embodiments, the image reading program is stored in the memory 31B. However, the present invention is not limited thereto. The image reading program may be stored in a non-volatile memory such as a hard disk device or a flash memory (registered as a trademark), a storage medium such as a CD-R, or the like.

0061According to another illustrative aspect of the present invention, in the image reading apparatus, wherein in the scanning execution operation, the control unit is configured to transmit read data, obtained by the scanning operation, to the external apparatus through the data communication unit. Further, the control unit is configured to further perform: a compliance determining process of determining whether the external apparatus is compliant with the second reading mode or not; and a performance determining process including: allowing performance of the second reading mode when it is determined in the compliance determining process that the external apparatus is compliant with the second reading mode; and preventing performance of the second reading mode when it is determined that the external apparatus is not compliant with the second reading mode.

0062According to still another illustrative aspect of the present invention, in the image reading apparatus, wherein the input operation unit includes a display unit, and wherein in the performance determining process, when it is determined in the compliance determining process that the external apparatus is not compliant with the second reading mode, the control unit makes the display unit display a choice for the first reading mode but not display any choice for the second reading mode so as to prevent performance of the second reading mode.

0063According to still another illustrative aspect of the present invention, in the image reading apparatus, wherein the input operation unit includes a display unit, and wherein in the performance determining process, when it is determined in the compliance determining process that the external apparatus is not compliant with the second reading mode, the control unit makes the display unit not display any selection screen including choices for the first reading mode and for the second reading mode so as to prevent performance of the second reading mode.

0064According to still another illustrative aspect of the present invention, the image reading apparatus further includes: a memory configured to store compliance/non-compliance information on whether the external apparatus is compliant with the second reading mode or not, wherein when receiving compliance/non-compliance information from the external apparatus through the data communication unit, the control unit performs an information updating process of updating the compliance/non-compliance information stored in the memory with the received compliance/non-compliance information.

0065According to still another illustrative aspect of the present invention, in the image reading apparatus, wherein when the selection instruction received in the selection receiving process is for selecting the second reading mode, the control unit is configured to: receive a first scan condition, which is not receivable in the input receiving process, from the external apparatus through the data communication unit; and perform the second reading mode, on the basis of the first scan condition and a second scan condition receivable in the input receiving process, in the scanning process.

0066According to still another illustrative aspect of the present invention, in the image reading apparatus, wherein the input operation unit includes a display unit, and wherein the control unit makes the display unit display only the second scan condition in the input receiving process.

0067According to still another illustrative aspect of the present invention, in the image reading apparatus, wherein the control unit is configured to further perform: a scan-condition transmitting process of transmitting the second scan condition through the data communication unit when the selection instruction received in the selection receiving process is for selecting the second reading mode; and a scan-instruction receiving process of receiving a scan instruction including the first scan condition and the second scan condition from the external apparatus through the data communication unit, and wherein in the scanning executing process, the control unit performs the second reading mode on the basis of the scan instruction received in the read-instruction receiving process.

0068According to still another illustrative aspect of the present invention, in the image reading apparatus, wherein in the scan-instruction receiving process, the control unit receives the scan instruction including the first scan condition compatible with the second scan condition, from the external apparatus through the data communication unit.

0069According to still another illustrative aspect of the present invention, in the image reading apparatus, wherein after receiving the selection instruction in the selection receiving process, the control unit performs the communication receiving process.

0070According to still another illustrative aspect of the present invention, in the image reading apparatus, wherein the input operation unit includes a display unit, and wherein after receiving the selection instruction for selecting the second reading mode in the selection receiving process, the control unit makes the display unit display option items of a scan condition receivable in the input receiving process.