| 摘要 |
PROBLEM TO BE SOLVED: To provide an electrophotographic photoreceptor that has high abrasion resistance and good electrophotographic characteristics, can perform stable image formation for a long period of time, and has high durability; an electrophotographic method; an electrophotographic device; and a process cartridge for an electrophotographic device.SOLUTION: An electrophotographic photoreceptor includes a conductive support 201, a photosensitive layer 202 provided on the conductive support 201, and a protective layer 206 provided on the photosensitive layer 202. The protective layer 206 includes two or more metal oxides having different primary particle diameters, a binder resin, and a charge transport substance; the content of the metal oxides is 50 wt.% or more; and a relationship between the primary particle diameters of the metal oxides satisfies all the following expressions (I) to (III): (I): d(1)<d(2); (II): d(1)/d(2)≤0.25; and (III): 0.1 μm≤d(2), where d(1) and d(2) are each the primary particle diameter of the metal oxide contained in the protective layer. |
