| 摘要 |
PROBLEM TO BE SOLVED: To provide a contact electrification system by which uniform electrification is stably performed over a long term without causing sticking and soiling to/by an electrophotographic photoreceptor and a process cartridge provided with the contact electrification system. SOLUTION: In an electrifying device for electrifying a body to be electrified, an electrifying member possesses a conductive supporting body and also at least a conductive elastic layer and a surface layer covering the surface of the conductive elastic layer on the conductive supporting body. The conductive elastic layer consists of thermoplastic elastomer where conductive particles are dispersed. When Rz1 stands for the ten-point average roughness of the surface layer and Rz2 that of the surface of the body to be electrified, a relation Rz1+Rz2≤20μm (here Rz2≤5μm) is satisfied. COPYRIGHT: (C)2004,JPO
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