Electrophotographic photoconductor

Details Electrophotographic photoconductor Electrophotographic photoconductor

1997-06-27

1998-08-04

Martin, Roland

Radiation imagery chemistry: process, composition, or product th

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

Radiation-sensitive composition or product

430 59, 430 96, G03G 5047

Patent

active

057891265

ABSTRACT:
Provided is an electrophotographic photoconductor comprising an electroconductive support and a photosensitive layer including a charge generation layer and a charge transport layer formed on the charge generation layer, the photosensitive layer being formed on the electroconductive support either directly or via an intermediate layer,
wherein the charge transport layer contains a polyester resin having a structural unit (1) and a structural unit (2): ##STR1## wherein h:i is from 3:7 to 7:3, (h+i) is an integer from 10 to 1000, and a is an integer from 1 to 10, and the weight of the polyester resin is from 10 to 30 wt % to the total weight of resins contained in said charge transport layer. The residual potential of the photoconductor does not increase even upon repeated use under high temperature and high humidity. When a polycarbonate resin is contained as a binding resin in the charge transport layer, the surface of the photoconductor can be made tough and hardly scratched.

REFERENCES:
patent: 4840861 (1989-06-01), Staudenmayer et al.
patent: 4847175 (1989-07-01), Pavlisko et al.
patent: 5190840 (1993-03-01), Weiss et al.

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