Title:
電子写真感光体、プロセスカートリッジおよび電子写真装置
Document Type and Number:
Japanese Patent JP4164491
Kind Code:
B2
Abstract:
The present invention provides an electrophotographic photosensitive member capable of maintaining high transfer efficiency without causing large transfer current for a long-term use, obtaining an excellent image, and achieving those effects especially when being applied to a color electrophotographic apparatus. The invention also provides a process cartridge and an electrophotographic apparatus each having such a photosensitive member. The present invention includes an electrophotographic photosensitive member having a photosensitive layer on a support, a surface layer containing diorganopolysiloxane having specific repeating structure units alpha and beta , and having a weight-average molecular weight of 1,000 to 1,000,000; in which a content of the diorganopolysiloxane in the surface layer is 0.01 to 20% by weight based on the entire weight of the surface layer (except in the case where the surface layer contains fluorine atom-containing resin particles).
Inventors:
Hirotoshi Uesugi
Hideki Anayama
Mountain saki sol
Kazushige Nakamura
Hideki Anayama
Mountain saki sol
Kazushige Nakamura
Application Number:
JP2004517289A
Publication Date:
October 15, 2008
Filing Date:
June 26, 2003
Export Citation:
Assignee:
Canon Inc
International Classes:
G03G5/147; G03G5/05; C08G77/442; C08G77/46
Domestic Patent References:
| JP2000081715A | ||||
| JP2001249481A |
Attorney, Agent or Firm:
Masao Okabe
Nobuaki Kato
Kazuo
Shinichi Usui
Ikuo Fujino
Takao Ochi
Teruhisa Motomiya
Norimichi Takanashi
Asahi Shinmitsu
Seiichiro Takahashi
Koji Yoshizawa
Takao Matsui
Nobuaki Kato
Kazuo
Shinichi Usui
Ikuo Fujino
Takao Ochi
Teruhisa Motomiya
Norimichi Takanashi
Asahi Shinmitsu
Seiichiro Takahashi
Koji Yoshizawa
Takao Matsui