Electrophotographic organophotoreceptors

摘要

An organophotoreceptor that includes (a) a charge transport material having the formula wherein A is selected from heterocyclic groups, naphthyl group, (9H-fluoren-9-ylidene)benzyl group, alkylsulfonylphenyl, or stilbenyl, B is selected from hydrogen, alkyl group, and an aryl group, with the proviso that when A is naphthyl, B is naphthyl; and wherein R1 is selected from the group consisting of N-pyrrolyl, N-pyrazolyl, N-tetrazolyl, N-indolyl, N-carbazolyl, N-triazolyl, N-imidazolyl, N-benzimidazolyl, N-indazolyl, and N-benzotriazolyl group, and R3 is a 9-fluorenone group, (b) a charge generating compound, and (c) an electrically conductive substrate. Therefore, an organophotoreceptor having good mechanical and electrostatic properties can be obtained by using a charge transport material including 9H-fluoren-9-one hydrazino substituted compounds and derivatives thereof. Also, an electrophotographic imaging apparatus for obtaining high quality image even after repeated cycles can be attained by employing the organophotoreceptor.