| 摘要 |
PROBLEM TO BE SOLVED: To provide an excellent electorphotographic photoreceptor which is improved in wear resistance and flaw resistance by enhancing film strength, is good in deposition resistance, exhibits stable and excellent potential characteristics without depending upon repetitive use and environmental fluctuation, affords good image quality free of image defects, such as fogging, and is extremely little in transfer memory and photomemory, a process cartridge using the electrophotographic photoreceptor and an electrophotographic device. SOLUTION: The electrophotographic photoreceptor which has a photosensitive layer on a conductive substrate, has the extreme surface layer containing a compound polymerized with a hole transferable compound having >=2 chain polymerizable functional groups within the same molecule on the electrophotographic photoreceptor and in which the calorific value in the differential scanning thermal analysis of the extreme surface layer is <=60 mj/mg, the process cartridge having such electrophotographic photoreceptor and the electrophotographic device.
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