ELECTROPHOTOGRAPHIC PHOTORECEPTOR AND IMAGE FORMATION METHOD

摘要

PROBLEM TO BE SOLVED: To provide an electrophotographic photoreceptor with excellent wear-resistance capable of obtaining a halftone image with high picture quality in which occurrence of interference stripes and image unevenness are suppressed, and an image formation method using the electrophotographic photoreceptor.

SOLUTION: An electrophotographic photoreceptor includes at least an electrical charge generating layer and at least two electrical charge transmitting layers laminated on a cylindrical substrate in this order. The cylindrical substrate included in the electrophotographic photoreceptor has a cutting shape having a periodical cutting irregularity in a center axis direction on an outer peripheral surface thereof, satisfying formula (1): ΔL≥10 μm [in formula (1), ΔL representing a difference of a maximal value and a minimum value of cycle width of the cutting irregularity in the center axis direction in an image area of the outer peripheral surface of the cylindrical substrate]. The electrical charge transmitting layer at the top layer contains inorganic particles having number average primary particle diameter (Dp) of 3-100 nm.

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