Electrophotographic photoreceptor, process cartridge, and image forming apparatus

摘要

An electrophotographic photoreceptor includes: a conductive substrate; a photosensitive layer including a charge-generating layer containing a charge-generating material and a charge-transporting layer containing a charge-transporting material, the charge-transporting layer having a hole mobility of about 5.0×10-6 (cm2/V·sec) or less at an electric field of 2 V/cm; and an overcoat layer that is provided on the photosensitive layer and contains a cured material of a charge-transporting material, wherein relational expression (1) Ip(OCL)>Ip(CTL)>Ip(CGL) is satisfied wherein Ip(CGL) represents an ionization potential (eV) of the charge-generating material contained in the charge-generating layer; Ip(CTL) represents an ionization potential (eV) of the charge-transporting material contained in the charge-transporting layer; and Ip(OCL) represents an ionization potential (eV) of the charge-transporting material contained in the overcoat layer.