| (19) |
 |
|
(11) |
EP 1 515 192 A8 |
| (12) |
CORRECTED EUROPEAN PATENT APPLICATION |
| (48) |
Corrigendum issued on: |
|
08.06.2005 Bulletin 2005/23 |
| (43) |
Date of publication: |
|
16.03.2005 Bulletin 2005/11 |
| (22) |
Date of filing: 10.09.2004 |
|
| (51) |
International Patent Classification (IPC)7: G03G 5/147 |
|
| (84) |
Designated Contracting States: |
|
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PL PT RO SE SI SK TR
|
|
Designated Extension States: |
|
AL HR LT LV MK |
| (30) |
Priority: |
11.09.2003 JP 2003319362
12.09.2003 JP 2003321814
19.09.2003 JP 2003328177
18.12.2003 JP 2003421103
20.07.2004 JP 2004211846
|
| (71) |
Applicant: Ricoh Company, Ltd. |
|
Tokyo 143-8555 (JP) |
|
| (72) |
Inventors: |
|
- Ikegami, Takaaki
Susono-shi Shizuoka (JP)
- Nohsho, Shinji
Numazu-shi Shizuoka (JP)
- Kurimoto, Eiji
Numazu-shi Shizuoka (JP)
- Kami, Hidetoshi
Numazu-shi Shizuoka (JP)
- Sugino, Akihiro
Numazu-shi Shizuoka (JP)
- Yamashita, Yasuyuki
Numazu-shi Shizuoka (JP)
- Nakamori, Hideo
Numazu-shi Shizuoka (JP)
- Takada, Takeshi Kishinekoen Southern Hills 2-102
Yokohama-shi Kanagawa (JP)
|
| (74) |
Representative: Schwabe - Sandmair - Marx |
|
Stuntzstrasse 16
81677 München
81677 München (DE) |
|
| |
|
| (54) |
Electrophotographic photoconductor, electrophotographic process, electrophotographic
apparatus, and process cartridge |
(57) The present invention relates to an electrophotographic photoconductor comprising
a photoconductive layer, a protective layer, and a conductive support, wherein the
protective layer is disposed as the outermost layer of the photoconductive layer,
and 20 % by volume to 60 % by volume of fine particles of fluorine-contained resin
and at least one compound selected from amine aromatic compounds and hydroxy aromatic
compounds are incorporated into the protective layer.
According to the present invention, high durability may be achieved, image degradation
such as lags may be controlled from the increase of residual potential and decrease
of charging, and high quality images may be formed stably even after the prolonged
and repeated usage.
The present invention also relates to an electrophotographic process, an electrophotographic
apparatus and a process cartridge for the electrophotographic apparatus which utilize
the electrophotographic photoconductor respectively.