| 摘要 |
PURPOSE:To obtain the electrophotographic sensitive body which has high sensitivity and with which the potential at the time of repetitive use is stably maintained by providing a charge generating layer contg. a disazo pigment having a specific structure and a charge transfer layer contg. a styryl compd. having a specific structure to the photosensitive body. CONSTITUTION:This photosensitive body has the charge generating layer and the charge transfer layer on a conductive base. The charge generating layer contains the disazo pigment expressed by the formula I as a charge generating material and the charge transfer layer contains the styryl compd. expressed by the formula II or the formula III as a charge transfer material. In the formulas I to III, R1 to R4 denote an alkyl group, aralkyl group, etc.; R5, R6 denote a hydrogen atom, alkoxy group, etc.; Ar1 to Ar3 denote an arom. cyclic group, heterocyclic group, X1 to X4 denote a hydrogen atom, alkyl group, etc.; Z denotes an oxygen atom, sulfur atom; Y denotes a single bond, -CH2-CH2, etc. The electrophotographic sensitive body having the high sensitivity and the excellent potential stability is obtd. in this way. |
