Patent ID: 8703373

Claim:
An electrophotographic photoreceptor comprising: a conductive substrate; and a photosensitive layer on the conductive substrate, wherein: a layer having an outermost surface of the photoreceptor contains a copolymer obtained by polymerizing a crosslinkable charge transport material having an aromatic group and a —CH 2 OH group with a crosslinkable charge transport material having a reactive alkoxyl group; the crosslinkable charge transport material having an aromatic group and a —CH 2 OH group is a compound represented by the following Formula (I-1): F 1 —(L 1 —OH) n (I-1), where: F 1 represents an organic group derived from a compound having a hole transport property and an aromatic group, L 1 represents a linear or branched alkylene group having from 1 to 5 carbon atoms, and n represents an integer of from 1 to 4; the crosslinkable charge transport material having the reactive alkoxyl group is a compound represented by the following Formula (I-2): F 2 —(L 2 —OR) m (I-2) where: F 2 represents an organic group derived from a compound having a hole transport property, L 2 represents a linear or branched alkylene grow having from 1 to 5 carbon atoms, R represents an alkyl group, and m represents an integer of from 1 to 4; and the layer having the outermost surface satisfies the following Formula (1): (Peak 2)/(Peak 1)≦0.05 (1), where: Peak 1 represents a peak area of an absorption peak (from about 1550 cm −1 to about 1650 cm −1 ) of stretching vibration of an aromatic group, which is obtained when an infrared absorption spectrum of the layer having the outermost surface is measured, and Peak 2 represents a peak area of an absorption peak (from about 1670 cm −1 to about 1710 cm −1 ) of aromatic aldehyde, which is obtained when the infrared absorption spectrum of the layer having the outermost surface is measured.