| 摘要 |
PURPOSE:To stabilize the electrification of the titled body, even after repeating use by using a specific trisazopigment to the titled body as a photoconductive body. CONSTITUTION:The titled body contains one or more kinds of the trisazopigment shown by formula I as the photoconductive body of a photosensitive layer. In the formula, A is a coupler residual group having a phenolic hydroxyl group or a coupler residual group of 2-methyl indolenine derivative, A is preferably a residual group shown by formulas II-IV where R1 and R2 are each H atom, or a (substd.)alkyl group, etc., X is a residual group capable of forming a polycyclic aromatic ring by condensating with a benzene ring, Y is a divalent group of an aromatic hydrocarbon, etc., R6 is H atom or alkoxy group, etc. The pigment shown by formula I is incorporated preferably to an electric charge generating layer of the laminated type photosensitive layer. Thus, the titled body having the high sensitivity and the excellent potential stability, even in case of using for long period is obtd. |
