| 摘要 |
PROBLEM TO BE SOLVED: To prevent sensitivity and fatigue deteriorations of a photoreceptor by incorporating a specified charge producing material, hole transfer material and electron transfer material. SOLUTION: A photosensitive layer having a multilayered structure of a hole transfer charge transfer layer and a charge producing layer is formed in this order on a conductive supporting body. The charge producing layer contains a charge producing material expressed by formula I or the like, a hole transfer material expressed by formula II and an electron transfer material expressed by formula III. In formula II, R is a halogen atom, alkyl group or alkoxy group, each of R1 and R2 is a hydrogen atom or substd. or unsubstd. aryl group, and l, m, n are integers 0 to 5. In formula III, each of =Q1 and =Q2 represent =O, =C(CN)2, =C(CN)COOR11, =N(CN), each of R3 to R10 is a hydrogen atom, halogen atom, nitro group, cyano group, alkyl group, alkoxy group, amino group, amide group COOR12 or aryl group, and each of R11 and R12 is an alkyl group.
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