| 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 the titled body. 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, R3 is a (substd.) alkyl or aralkyl group, etc., R5 is hydrogen atom or alkyl group. 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 durability is obtd. |
