| 摘要 |
PURPOSE:To stabilize potential characteristics at the time of repeated uses by incorporating a specified disazo pigment in a photosensitive layer formed on a conductive supporting body. CONSTITUTION:The photosensitive layer formed on the conductive supporting body contains the disazo pigments represented by formula I in which each of A and A' is a coupler residue having a phenolic hydroxyl group; R1 is 1-3C lower alkyl group substituted by >=2 halogen atoms; each of R2 and R3 is H atom, alkyl group, or the like; and B is a single bond or a group of formula II, thus permitting characteristics, such as sensitivity, residual potential resistance, stability at the time of repeated uses, or on the like to be enhanced. |
