ELECTROPHOTOGRAPHIC PHOTORECEPTOR, IMAGE FORMING METHOD USING THE SAME, IMAGE FORMING APPARATUS AND PROCESS CARTRIDGE FOR IMAGE FORMATION

摘要

PROBLEM TO BE SOLVED: To provide an electrophotographic photoreceptor satisfying both high wear resistance and excellent electrical properties, an image forming method using the same, an image forming apparatus and a process cartridge for the image forming apparatus. SOLUTION: The electrophotographic photoreceptor has a photosensitive layer 2 formed by sequentially stacking a charge generating layer 3 and a charge transport layer 4 on a conductive support 1, wherein part of the surface side of the photosensitive layer 2 has an inclined structure represented by the formula (1): (D/R)n<(D/R)m wherein (D/R)n and (D/R)m represent the weight ratio between a charge transport material (D) and a binder resin (R) in a point at a distance n from the outermost surface of the photosensitive layer and that in a point at a distance m; and n