| 摘要 |
This invention provides an electrophotographic photoreceptor, which can maintain a high level of slipperiness of the surface of a photoreceptor, can improve cleaning properties through long-term durability, can suppress the occurrence of squealing and peeling of blade, and can realize good image reproducibility, and a process cartridge comprising the electrophotographic photoreceptor and an electrophotographic device. The electrophotographic photoreceptor comprises a photosensitive layer provided on a support. The photoreceptor surface layer contains a silicon-containing compound or a fluorine-containing compound. The surface of the surface layer in the electrophotographic photoreceptor has a plurality of independent concave part. The concave part satisfies the requirements that Rdv is not less than 0.1 μm and not more than 10.0 μm and the ratio of Rdv to Rpc, i.e., Rdv/Rpc, is more than 0.3 and not more than 7.0, wherein Rpc represents the major axis of the concave part; and Rdv represents the depth representing the distance between the deepest part and the open pore face in the concave part.
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