| 摘要 |
PURPOSE:To obtain a high-sensitivity electrophotographic sensitive body which is small in residual potential even after repetitive use and is usable for a long period of time by using a specific hydrazone compd. for an electric charge transfer material of the electrophotographic sensitive body. CONSTITUTION:The charge transfer material of the electrophotographic sensitive body is the hydrazone compd. expressed by the formula I. In the formula I, R1 and R2 are equally or differently a hydrogen atom, alkyl group, alkoxy group, halogen atom, etc., m and n are 0-3 integer, R3 and R4 equally or differently denote an alkyl group, aralkyl group which has a substituent in some cases, and aryl group which has a substituent in some cases, R<3> and R<4> may form a hetero cycle together with a nitrogen atom by bonding each other. The charge transfer material for the high-sensitivity electrophotographic sensitive body which is small in the residual potential and is usable for a long period of time is thereby obtd. |
