| 摘要 |
PROBLEM TO BE SOLVED: To provide an electrophotographic photoreceptor having high sensitivity. SOLUTION: The present invention relates to the electrophotographic photoreceptor having a photosensitive layer containing at least an electron transport agent, a charge-generating agent and a binder resin, provided on a conductive base, wherein the electron transport agent is a compound represented by general formulae (1a) or (1b). In the formula (1a), Ra, Rb represent a group to form an unsaturated carbon ring or a hetero ring by combination; R<SB>1</SB>represents 1-6C alkyl group, 1-6C alkoxy group, 6-20C aralkyl group, 6-20C aryl group, or 3-10C cycloalkyl group. In the formula (1b), Rc, Rd represent a group to form an unsaturated carbon ring or a hetero ring by combination; R<SB>2</SB>represents 1-6C alkyl group, 1-6C alkoxy group, 6-20C aralkyl group, 6-20C aryl group, or 3-10C cycloalkyl group. COPYRIGHT: (C)2009,JPO&INPIT
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