Electrophotographic photoreceptor.

摘要

An electrophotographic photoreceptor comprising a support having thereon at least one photoconductive layer containing at least an inorganic photoconductive material and a binder resin, wherein the binder resin contains (A) at least one resin having a weight average molecular weight of from 1 x 10<3> to 3 x 10<4> with at least one substituent selected from -PO3H2, -SO3H, -COOH, <CHEM> wherein R represents a hydrocarbon group having from 1 to 10 carbon atoms or -OR min , wherein R min represents a hydrocarbon group having from 1 to 10 carbon atoms, and a cyclic acid anhydride-containing group, being bonded to one or both of the terminals of the polymer main chain thereof, and (B) at least one resin having a weight average molecular weight of 5 x 10<4> or more and containing, as a polymerization component, at least a repeating unit represented by formula (b-i): <CHEM> wherein T represents -COO-, -OCO-, -CH2OCO-, -CH2COO-, -O- or -SO2-; V represents a hydrocarbon group having from 1 to 22 carbon atoms; and a1 and a2, which may be the same or different, each represents a hydrogen atom, a halogen atom, a cyano group, a hydrocarbon group having from 1 to 8 carbon atoms, -COO-Z, or -COO-Z bonded via a hydrocarbon group having from 1 to 8 carbon atoms, wherein Z represents a hydrocarbon group having from 1 to 18 carbon atoms; and wherein said Resin (B) is partially crosslinked. The photoreceptor exhibits excellent electrostatic characteristics, image forming performance as well as printing suitability regardless of a change in envirorunental conditions or the kind of sensitizing dye used in combination with the photoreceptor. f