| 摘要 |
PROBLEM TO BE SOLVED: To obtain an electrophotographic photoreceptor which prevents cracks in a charge transfer layer or crystallization of a charge transfer material even when the photoreceptor is stored for a long time in a copying machine, and which hardly produces transfer memory even in a reversal developing system by incorporating a specified triarylamine compd. into the photosensitive layer. SOLUTION: This electrophotographic photoreceptor has a photosensitive layer on a conductive supporting body, and the photosensitive layer contains a triarylamine compd. expressed by the formula. In the formula, Ar1 to Ar6 are aromatic cyclic groups which may have substituents or heterocyclic groups which may have substituents, R1 to R4 are hydrogen atoms, alkyl groups which may have substituents, aralkyl groups which may have substituents or aryl groups which may have substituents, n is an integer 0 or 1. This electrophotographic photoreceptor consists of a combination of a charge transfer material consisting of the triarylamine compd. expressed by the formula and a proper charge producing material.
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