Patent ID: 6485873
Filing Date: 2002-11-26
Classification: G03G

Abstract:
An electrophotographic photoconductor comprising;a conductive substrate; a single-layer photosensitive layer disposed on said conductive substrate; said single-layer photosensitive layer including a resin binder, a charge generation substance, a hole transport substance, and an electron transport substance; said single-layer photosensitive layer containing a biphenyl compound; said biphenyl compound is represented by the following structural formula (BP1): wherein RP1 is selected from the group consisting of a hydrogen atom, an optionally substituted aryl group, an optionally substituted aralkyl group, and a cycloalkyl group; each of RP2 to RP10 is independently selected from the group consisting of a hydrogen atom, a halogen atom, an alkyl group of 1 to 18 carbon atoms, an alkoxyl group of 1 to 18 carbon atoms, a hydroxyl group, an alkyl halide group, a cyano group, nitro group, and an alkyl-substituted amino group optionally forming a ring with a nitrogen atom; the substituent being selected from the group consisting of a halogen atom, an alkyl group of 1 to 6 carbon atoms, an alkoxyl group of 1 to 6 carbon atoms, a hydroxyl group, a cyano group, an amino group, a nitro group, and an alkyl halide group; and said electron transport substance includes a compound represented by the following structural formula (ET2): wherein each of RE5 to RE8 is independently selected from the group consisting of a hydrogen atom, an alkyl group of 1 to 12 carbon atoms, an alkoxyl group of 1 to 12 carbon atoms, an optionally substituted aryl group, a cycloalkyl group, an optionally substituted aralkyl group, and an alkyl halide group; the substituent being selected from the group consisting of a halogen atom, an alkyl group of 1 to 6 carbon atoms, an alkoxyl group of 1 to 6 carbon atoms, a hydroxyl group, a cyano group, an amino group, a nitro group, and an alkyl halide group.