JP2007052063A5 - - Google Patents

Claims (4)

Following structural formula (1) to an electrophotographic photoreceptor, characterized by containing the indicated Ru of compounds in any of (6).

(In the formulas (1) to (6), X ₁ and X ₂ are O, C (CN) R, C (CN) COR, C (CN) COOR, C (COOR) ₂ , CHR or N R ( R during a substituted or unsubstituted aromatic group or substituted or indicates shown.) an unsubstituted aliphatic group or a cyano group. formula _{(1) ~ (6),} R 1 ~R 6 may substituted or unsubstituted aromatic group, a substituted or unsubstituted aliphatic group, an alkoxy group, an ester group, a nitro group, a cyano group, a halogen atom or a hydrogen atom.) Following structural formula (7) to an electrophotographic photoreceptor, characterized by containing the indicated Ru of compounds in any of (16).

(In the formula (7) ~ (16), X 1 is, O, C (CN) R , C (CN) COR, C (CN) COOR, C (COOR) 2, CHR or N R (R is a substituted during even properly aromatic group or a substituted or unsubstituted indicates a.) indicating the unsubstituted aliphatic group or a cyano group. equation _{(7) ~ (16),} R 1 ~R 6 may lay also substituted the unsubstituted aromatic group, a substituted or unsubstituted aliphatic group, an alkoxy group, an ester group, a nitro group, a cyano group, a halogen atom or a hydrogen atom.) An electrophotographic photosensitive member according to claim 1 or 2, a charging means, that at least one means selected from the group consisting of the developing means and the cleaning means integrally supported, is detachable to the main body of the electrophotographic apparatus Process cartridge characterized by. The electrophotographic photosensitive member according to claim 1 or 2, a charging means, an exposure means, the electrophotographic apparatus, characterized in that it comprises a developing means and transfer means.