| 摘要 |
PURPOSE:To obtain a photosensitive body high in sensitivity and superior in characteristics resisting to repeated uses by using a specified azo compound as an electric charge generating material. CONSTITUTION:The photosensitive layer contains as the charge generating material at least one of the azo compounds containing bithiophene structure represented by formulae I and II in which each of R1-R10 is H, halogen atom, OH, alkyl, alkoxy, allyl, aldehyde, acyl, carboxy, ester, carbamoyl, amino, alkylamino, arylamino, aryl, aralkyl, nitro, or cyano group; and N=N-A1 is an azo residue, and N=N-A2-N=N is a disazo residue, thus permitting the obtained photosensitive body to be high in sensitivity even in the case of positive and negative charging, and superior in repeated use characteristics. |
