Electrophotographic photoreceptor.

摘要

An electrophotographic photoreceptor comprising an electrically conductive substrate and a photosensitive layer formed thereon, wherein said photosensitive layer contains an arylamine compound of the following formula (I): <CHEM> wherein X is a hydrogen atom or a group of the formula (II): <CHEM> Y is a group of the formula (III) or (IV): -O-A<1>-O- (III> -A<2>-O-A<3>- (III> wherein A<1> in the formula (III) is a bivalent hydrocarbon residue which may have substituents, and each of A<2> and A<3> in the formula (IV) is an alkylene group which may have substituents, an arylene group which may have substituents, or a group wherein an alkylene group which may have substituents and an arylene group which may have substituents, are bonded, and A<2> and A<3> may be the same or different from each other; each of Ar<1> and Ar<2> which may be the same or different, is an alkyl group which may have substituents, an aryl group which may have substituents, or a heterocyclic group which may have substituents; each of R<1>, R<2>, R<3> and R<4> which may be the same or different, is a hydrogen atom, a halogen atom, an alkyl group which may have substituents, an alkoxy group which may have substituents, or a substituted amino group; each of R<5>, R<6>, R<7>, R<8>, R<9> and R<1><0> which may be the same or different, is a hydrogen atom, an alkyl group which may have substituents, an aryl group which may have substituents, or a heterocyclic group which may have substituents, or R<6> and R<7>, or R<9> and R<1><0> are condensed to form a carbon ring group which may have substituents, or a heterocyclic group which may have substituents, provided that with respect to the pair of R<6> and R<7> and the pair of R<9> and R<1><0>, when one of each pair is a hydrogen atom or an alkyl group, the other is an aryl group or a heterocyclic group. <IMAGE>