Electrophotographic photosensitive member having S-type photo-in

Details Electrophotographic photosensitive member having S-type photo-in Electrophotographic photosensitive member having S-type photo-in

1997-06-10

1999-08-24

Rodee, Christopher D.

Radiation imagery chemistry: process, composition, or product th

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

Radiation-sensitive composition or product

430 58, 430134, 430130, 399159, G03G 505, G03G 5047

Patent

active

059423617

ABSTRACT:
An electrophotographic photosensitive element having S-type photo-induced potential decay characteristics and an electrophotographic apparatus using the photosensitive member are provided.
The photosensitive member comprises a charge generation layer and a charge transport layer on an electroconductive substrate. The charge transport layer contains a polymer in a phase separated state with a modulated structure, comprising an electrically inactive phase and a charge transporting phase. The amount of exposure required for 50% potential decay is less than 5 times the exposure amount required for 10% potential decay. The modulated structure includes, for example, a mixture of insulating polymer and charge transporting polymer and the like. The modulated structure can be formed by the method of separating a homogeneous phase of these polymers into two phases.

REFERENCES:
patent: 5306586 (1994-04-01), Pai et al.
patent: 5418106 (1995-05-01), Snyder, Jr. et al.
patent: 5654119 (1997-08-01), Ishii et al.
Borsenberger, Paul M. & David S. Weiss. Organic Photoreceptors for Imaging Systems. New York: Marcel-Dekker, Inc. pp. 10-11, 1993.
Chemical Abstracts 113:142244, 1989.
Chemical Abstracts 104:43172, 1985.
Weigl et al., "Current Problems in Electrophotography," Phthalocyanine-Binder Photoreceptors for Xerography, 1972, pp. 287-299.

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