Electrophotographic apparatus
Abstract
Electrophotographic apparatus having a blue (purple) semiconductor laser as a light source as an exposure means, an electrophotographic photosensitive member, a charging means, a developing means, a transfer means and a destaticizing means. The exposure means has a semiconductor laser and the destaticizing means having a light-emitting diode, wherein wavelength λa (nm) of the semiconductor laser, wavelength λb (nm) of the light-emitting diode and wavelength λc (nm) at which the electrophotographic photosensitive member has a maximum spectral sensitivity satisfy the following relationship (1):λa < λc < λb and any of the λa, the λb and the λc is within the range of from 380 nm to 520 nm.

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Projected expiry passed 9 November 2024, 1.9 years ago.
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2 sheets
Sheet 1 Sheet 2
Every citation, both ways
| Document | Relation | Office | Category | Cited during | Relevant claims |
|---|---|---|---|---|---|
| JP2000105478A | Cites | Japan | A | Search report | 5,7,8 |
| JP2000250238A | Cites | Japan | A | Search report | 5,7-9 |
| JP2002371202A | Cites | Japan | A | Search report | 6,10,11 |
| US4607934A | Cites | United States of America | Y | Search report | 1-12 |
| JPH10239956A | Cites | Japan | Y | Search report | 1-12 |
| JPH11133825A | Cites | Japan | A | Search report | 2,3 |
10 members in 5 offices; this record represents the family
Priority claims2
| Document | Office | Kind | Date |
|---|---|---|---|
| 2003395871 | Japan | – | |
| 2003395871 | Japan | A |
Members10
| Document | Office | Kind | |
|---|---|---|---|
| US2005111880A1 | United States of America | A1 | |
| KR20050050596A | Republic of Korea | A | |
| CN1621954A | China | A | |
| EP1536292A2 | European Patent Office (EPO) | A2 | |
| JP2005181991A | Japan | A | |
| KR100612793B1 | Republic of Korea | B1 | |
| US7245851B2 | United States of America | B2 | |
| CN100461012C | China | C | |
| JP4533100B2 | Japan | B2 | |
| EP1536292A3This record | European Patent Office (EPO) | A3 |
16 legal events, as the office reported them to INPADOC
Over the term
Point at a mark for the eventEvents
| Event | Code | |
|---|---|---|
| Application withdrawnWithdrawn18W | 18W | |
| Information on the status of an ep patent application or granted ep patentGrantedSTATUS: THE APPLICATION HAS BEEN WITHDRAWNSTAA | STAA | |
| Intention to grant announcedINTG | INTG | |
| Despatch of communication of intention to grant a patentORIGINAL CODE: EPIDOSNIGR1GRAP | GRAP | |
| First examination report despatched17Q | 17Q | |
| Designation fees paidAKX | AKX | |
| Request for examination filed17P | 17P | |
| Designated contracting statesAK | AK | |
| Request for extension of the european patentAX | AX | |
| Information provided on ipc code assigned before grantRIC1 | RIC1 | |
| Information provided on ipc code assigned before grantRIC1 | RIC1 | |
| Information provided on ipc code assigned before grantRIC1 | RIC1 | |
| Search report despatchedORIGINAL CODE: 0009013PUAL | PUAL | |
| Designated contracting statesAK | AK | |
| Request for extension of the european patentAX | AX | |
| Public reference made under article 153(3) epc to a published international application that has entered the european phaseORIGINAL CODE: 0009012PUAI | PUAI |
Numbers
- Publication
- 1536292
- Application
- 40265621
Titles3
- German
- Elektrophotographisches Gerät
- English
- Electrophotographic apparatus
- French
- Appareil électrophotographique
Classification
- CPC, 11
- G03G5/04
- G03G15/326
- G03G5/047
- G03G5/0629
- G03G5/0644
- G03G5/0646
- G03G5/0679
- G03G5/0681
- G03G5/0696
- G03G2215/00962
- G03G5/14791
- IPC, 4
- G03G5 04
- G03G5 047
- G03G5 06
- G03G15 04
Designated states35
- Contracting states, 29
- Austria
- Belgium
- Bulgaria
- Switzerland
- Cyprus
- Czechia
- Germany
- Denmark
- Estonia
- Spain
- Finland
- France
- United Kingdom
- Greece
- Hungary
- Ireland
- Iceland
- Italy
- Liechtenstein
- Luxembourg
- Monaco
- Netherlands (Kingdom of the)
- Poland
- Portugal
and 5 moreShow fewer
- Romania
- Sweden
- Slovenia
- Slovakia
- Türkiye
- Extension states, 6
- Albania
- Croatia
- Lithuania
- Latvia
- North Macedonia
- Yugoslavia, later Serbia and Montenegro (until 2006)