| 摘要 |
PROBLEM TO BE SOLVED: To provide an electrophotographic photoreceptor having excellent electrical characteristics and an image forming apparatus with which high quality image formation processing is possible by using the electrophotographic photoreceptor. SOLUTION: The electrophotographic photoreceptor is equipped with a conductive substrate, and a photosensitive layer formed via an under coating layer or directly on the conductive substrate, in which a triaryl amine base compound expressed by general formula (1) is incorporated into the photosensitive layer. In the formula, Ar<SP>1</SP>and Ar<SP>2</SP>are the same as or different from each other and denote substituted or unsubstituted 6 to 30C aryl groups; R<SP>1</SP>, R<SP>2</SP>, R<SP>3</SP>, R<SP>4</SP>and R<SP>5</SP>are the same as or different from each other and denote substituted or unsubstituted 1 to 12C alkyl groups, etc.; (n) denotes an integer from 0 to 3; (p) denotes an integer from 0 to 4; (q) and (r) are the same as or different from each other and denote 0 or 1. COPYRIGHT: (C)2007,JPO&INPIT
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