| 摘要 |
PURPOSE:To obtain the excellent photosensitive body which has high sensitivity and the stable characteristics at the time of repetitive use and has no toxicity by providing the photosensitive body contg. a specific compd. on a conductive base. CONSTITUTION:The photosensitive layer contg. the pyrazine deriv. expressed by formula I is provided. In formula I, Pz is expressed by formula II or formula III; R to R<4> denote alkyl group, aryl group all of R1 to R4 are preferably the same substituent. Such pyrazine compd. is used as the photoconductive material of the electrophotographic sensitive body and this pyrazine compd. is used a the carrier transfer material of the separated-function type electrophotographic sensitive body which executes carrier generation and transfer with respectively separate materials. The electrophotographic sensitive body which has excellent film properties, has excellent electrophotographic characteristics such as charge holding power, sensitivity and residual potential, has less fatigue deterioration when subjected to repetitive use and exhibits stable characteristics to heat or light as well is obtd. in this way. |
