Electrophotographic photosensitive member, process cartridge...

Details Electrophotographic photosensitive member, process cartridge... Electrophotographic photosensitive member, process cartridge...

2011-04-19

2011-04-19

Chapman, Mark A (Department: 1721)

Radiation imagery chemistry: process, composition, or product th

Electric or magnetic imagery, e.g., xerography,...

Radiation-sensitive composition or product

C430S059600, C430S096000, C430S066000

Reexamination Certificate

active

07927774

ABSTRACT:
An object of the present invention is to provide an electrophotographic photosensitive member having high durability and hardly causing sensitivity decrease even if short wavelength light, particularly light having a wavelength of 380 to 450 nm is used as exposure light, and a process cartridge and an electrophotographic apparatus having the electrophotographic photosensitive member. The present invention includes an electrophotographic photosensitive member comprising a support and a photosensitive layer which is provided on the support and contains a charge generation material and a charge transport material, characterized in that the surface layer of the electrophotographic photosensitive member contains an aliphatic dicarboxylic acid polyester resin with a weight average molecular weight of 80,000 or more having a specific repeating structural unit, and a process cartridge and an electrophotographic apparatus having the electrophotographic photosensitive member.

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Japanese Office Action dated Aug. 19, 2009 counterpart application No. 2005-259460 (English-language translation)—11 pages.

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