Canon Kabushiki Kaisha

Fujitsu Corporation

Mayumi Kimura

Hideki Anayama

Toshiyuki Yoshihara

Itaru Yamazaki

Hidetoshi Hirano

Hideyuki Ainoya

Tomokazu Ishikawa

Yoichi Kawamorita

Hiroyuki Ohmori

Tatsuo Maeda

Misako Tagami

China Kamizuru

Hiromu Kosuge

Display screen with animated graphical user interface

An electrophotographic photosensitive member comprises a conductive support and a photosensitive layer which comprises a charge generation layer and a charge transport layer, characterized in that the charge generation layer contains a polycarbonate resin, and the electrophotographic photosensitive member is electrostatically charged by applying a direct current voltage to a charging member in contact with the surface of said electrophotographic photosensitive member.

Electrophotographic apparatus with DC contact charging and photosensitive layer with polycarbonate resin in charge generation layer

An electrophotographic apparatus includes an electrophotographic photosensitive member, a charging member, an imagewise exposure system, a developing system having a toner feed member, a transfer system, and a cleaning system wherein the electrophotographic photosensitive member includes a surface layer containing a lubricative, fluorine-containing resin powder and the toner feed member includes a spacer member coming into contact with the surface layer of the electrophotographic photosensitive member; and also a process cartridge than can be detachably mounted on the electrophotographic apparatus.

Electrophotographic apparatus and process cartridge featuring an

An electrophotographic photosensitive member is constituted by disposing charge generation layer and a charge transport layer in succession on a support. The charge generation layer contains oxytitanium phthalocyanine, an azo pigment and a hindered phenol. The electrophotographic photosensitive member including such a charge generation layer is usable for providing an apparatus unit and an electrophotographic apparatus showing excellent electrophotographic characteristics such as a suppressed photomemory, good potential stability in repetitive use and good image-forming properties.

Electrophotographic photosensitive member, electrophotographic apparatus

An electrophotographic photosensitive member having a surface layer comprising a bisphenol Z-type polycarbonate resin is charged by contact charging. The charged electrophotographic photosensitive member is then subjected to imagewise exposure to form an electrostatic latent image on the photosensitive member, the thus formed electrostatic latent image on the electrophotographic photosensitive member is developed. The electrophotographic photosensitive member shows good resistance to wearing and toner sticking when subjected to electrophotographic image formation including a contact charging process.

Electrophotographic image forming method, apparatus and device unit

Growing community of inventors

Kawasaki, Japan

Mayumi Kimura