Patent ID: 7700251

Claim:
An electrophotographic photoconductor, comprising a photosensitive layer containing at least a charge-generating agent, a hole-transfer agent, and a binder resin on a conductive substrate, wherein the hole-transfer agent contains compounds represented by any of the following formula (12), (14), (15), (17) and (18) thereof, and the hole-transfer agent has a solubility of 5 to 35% by weight with respect to triglyceride oleate, wherein an amount of the elution of the hole-transfer agent from the surface of the electrophotographic photoconductor per unit area is in a range of 0.05 to 2 g/m 2 when the electrophotographic photoconductor is immersed in triglyceride oleate for 20 hours, and the photosensitive layer contains a compound represented by the following general formula (1) as an additive: wherein in general formula (1), R 1 to R 10 are each independently selected from a hydrogen atom, a halogen atom, a substituted or unsubstituted alkyl group having 1 to 12 carbon atoms, a substituted or unsubstituted alkoxy group having 1 to 12 carbon atoms, a substituted or unsubstituted aryl group having 6 to 30 carbon atoms, a substituted or unsubstituted aralkyl group having 6 to 30 carbon atoms, a substituted or unsubstituted cycloalkyl group having 3 to 12 carbon atoms, a hydroxyl group, a cyano group, a nitro group, and an amino group; R is a substituted or unsubstituted alkylene group having 1 to 12 carbon atoms; and n is a integer of 0 to 3, and