Electrophotographic apparatus and process cartridge

Details Electrophotographic apparatus and process cartridge Electrophotographic apparatus and process cartridge

1997-11-12

1999-02-23

Lee, S.

Electrophotography

Image formation

Photoconductive member

399111, 430 66, 430 69, 430902, G03G 1500, G03G 1504

Patent

active

058753753

ABSTRACT:
An electrophotographic apparatus is constituted by an electrophotographic photosensitive member, a charging member, developing device and transfer device. The charging member is disposed contactable to the photosensitive member and supplied with a voltage so as to charge the photosensitive member. The photosensitive member includes a metal support, a photosensitive layer disposed on the support, and a surface layer disposed on the photosensitive layer. The surface layer has a volume resistivity of 1.times.10.sup.10 -1.times.10.sup.15 ohm.cm, and the metal support has a surface-oxidized film at its surface provided with the photosensitive layer. The use of the above surface layer and the above metal support in combination is effective in stably performing good injection charging.

REFERENCES:
patent: 5384625 (1995-01-01), Anayama et al.
patent: 5434027 (1995-07-01), Oshiba et al.
patent: 5732313 (1998-03-01), Kawada et al.

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