Electrophotographic photosensitive member, process cartridge, and electrophotographic apparatus

摘要

An electrophotographic photosensitive member is comprised of a support, and a charge generation layer and a charge transport layer provided on the support in this order. The charge generation layer contains a charge-generating material in an amount of more than 2 parts by weight and not more than 5 parts by weight based on 1 part by weight of a binder resin, and the support has a surface roughness in which a maximum height RmaxD, a 10-point average roughness Rz, an arithmetic-mean roughness Ra and an unevenness average distance Sm fulfill the following conditions: 1.2 mu m ≤ RmaxD ≤ 5.0 mu m, 1.2 mu m ≤ Rz ≤ 3.0 mu m, 0.15 mu m ≤ Ra ≤ 0.5 mu m, 30 mu m < Sm ≤ 80 mu m. Also disclosed are a process cartridge and an electrophotographic apparatus which have the electrophotographic photosensitive member.