Patent ID: 9091951
Filing Date: 2015-07-28
Classification: G03G

Abstract:
1. An electrophotographic photosensitive member, comprising: a support; and a photosensitive layer formed on the support, wherein a surface layer of the electrophotographic photosensitive member comprises a polymer obtained by polymerization of a composition comprising: a compound represented by the following formula (1); and a compound represented by formula (A); wherein, in the formula (1), Ar Ar M is a group represented by formula (M) above and, in the formula (M), n represents 3 or 4, and a substituent group of the substituted phenyl group and a substituent group of the substituted phenylene group are each independently an unsubstituted methyl group, an unsubstituted ethyl group, an unsubstituted n-propyl group, an unsubstituted methoxy group, an unsubstituted ethoxy group, or an unsubstituted propoxy group, wherein in the formula (A), R X P at least two of P however, when X R wherein the surface layer further comprises a quinone derivative, the quinone derivative being at least one compound selected from the group consisting of: wherein the content of the quinone derivative in the surface layer is not less than 5 ppm and not more than 1500 ppm relative to the total mass of the polymer; wherein, in the formulae (G) and (H), R at least one of R at least one of R at least one of R at least one of R R at least one of R