Electrophotographic photoreceptor with copolymer binder or inter

Details Electrophotographic photoreceptor with copolymer binder or inter Electrophotographic photoreceptor with copolymer binder or inter

1989-12-29

1992-10-13

Martin, Roland

Radiation imagery chemistry: process, composition, or product th

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

Radiation-sensitive composition or product

430 60, 430 64, 430 96, G03G 5047, G03G 514

Patent

active

051549964

ABSTRACT:
An electrophotographic photoreceptor comprising an electro-conductive support having thereon at least one charge-generating layer and at least one charge-transporting layer, wherein said charge-generating layer contains, as a resin binder, a copolymer derived from at least one monomer represented by formula (I) and at least one monomer represented by formula (II) and a charge-generating substance, and wherein said charge-transporting layer is formed on said charge-generating layer by a coating solution containing a charge-transporting substance and a solvent not dissolving said resin binder: ##STR1## wherein R.sup.1 and R.sup.3, which may be the same or different, each represents a hydrogen atom or a methyl group; and R.sup.2 represents an unsubtituted or substituted alkyl group or an unsubstituted or substituted aralkyl group. Because of incorporation of the particular copolymer, the photoreceptor has high sensitivity, little fluctuation of electrophotographic characteristic in repeated use, excellent capacity of forming uniform images, excellent charging property and small residual potential. Specifically, the charge-generating layer is not dissolved out in formation of the charge-transporting layer over the charge-generating layer.

REFERENCES:
patent: 3932179 (1976-01-01), Perez-Albuerne
patent: 4082551 (1978-04-01), Steklenski et al.
patent: 4427754 (1984-01-01), Uchida et al.
patent: 4477547 (1984-10-01), Yamada et al.
patent: 4500622 (1985-02-01), Horie
patent: 4933246 (1990-06-01), Teuscher

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