| 摘要 |
PROBLEM TO BE SOLVED: To obtain a photoreceptor excellent in wear resistance, scratch resistance or the like by incorporating a specified siloxane hardening resin into the surface layer of an electrophotographic photoreceptor and incorporating an org. metal compd. and/or silane coupling agent into an intermediate layer. SOLUTION: The surface layer of the electrophotographic photoreceptor contains a siloxane hardening resin containing a structural unit expressed by the formula, and the intermediate layer contains an org. metal compd. and/or silane coupling agent. In the formula, X is a donating group of charge transfer ability and is coupled to Z in the formula through the carbon atom which constitutes the donating group, Z is a divalent or higher-valence atom or group except for the adjacent coupling atoms (Si and C). The divalent or higher- valence atom or group Z except for the adjacent coupling atoms (Si and C) preferably means a divalent or higher-valence atoms or groups such as an oxygen atom (O), sulfur atom (S) and NR (R is a hydrogen atom or monovalent org. group).
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