| 摘要 |
PROBLEM TO BE SOLVED: To provide an electrophotographic photoreceptor excellent in electrical properties and capable of effectively suppressing fogging even in a high temperature and high humidity environment, and an image forming apparatus equipped with the same. SOLUTION: The electrophotographic photoreceptor has a photosensitive layer formed on a substrate directly or by way of an intermediate layer. The image forming apparatus provided with the same is also provided. The photosensitive layer contains a charge generating agent, a hole transport agent and a binder resin, wherein hydrazone compound having an enamine group represented by formula (1) is used as the hole transport agent. In the formula (1), R<SP>1</SP>is a≥2C alkyl group; a plurality of symbols Ra-Rf are each independently a 1-12C substituted or unsubstituted alkyl group or the like; numbers of repetitions m and n are each an integer of 0-4; and numbers of repetitions o-r are each an integer of 0-5. COPYRIGHT: (C)2008,JPO&INPIT
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