Patent ID: 9029053
Filing Date: 2015-05-12
Classification: G03G

Abstract:
1. An electrophotographic photoreceptor, comprising: a conductive support; and a photosensitive layer on the conductive support, wherein the photosensitive layer comprises: wherein the charge transport substances represented by formulae (2) and (5) and the polyester resin represented by formula (6) are present in the same layer; wherein the photosensitive layer comprises 70 to 110 parts by weight in total of the charge transport substances represented by formulae (2) and (5) to 100 parts by weight of the polyester resin having a structural unit represented by formula (6); and the mixing ratio between the charge transport substance represented by formula (5) and the charge transport substance represented by formula (2) is 40:60 to 90:10: wherein each of Ar X represents a divalent substituent represented by the following formula (3) or (4); wherein each of R each of Ar wherein each of Ar each of R wherein each of Ar X represents a single bond, an oxygen atom, a sulfur atom or an alkylene group, m represents an integer of 0 to 2, and Y represents a single bond, an oxygen atom, a sulfur atom or an alkylene group.