| 摘要 |
PURPOSE:To obtain an electrophotographic receptor high in sensitivity and durability, by adding a specified bisazo pigment to a layer, especially, to a charge generating layer, and forming a laminated photoconductive layer composed of the charge generating layer and a charge transfer layer. CONSTITUTION:At least one of bisazo compds. represented by formulaI(Cp is a group of formula II, III, or IV; R5 is H or alkyl; R6 is alkyl; R7, R8 are each optionally substd. alkyl or aralkyl or aryl; X is an atomic group necessary to complete an optionally substd. aromatic hydrocarbon ring or hetero ring; and R1-R4 are each H, halogen, or a monovalent org. group, such as alkyl, alkoxy, or acetyl) is added to a layer formed on a conductive substrate, especially, to the charge generating layer of a laminated photoconductive layer, thus permitting the obtained photoreceptor to be enhanced in chargeing characteristics, photosensitivity, etc., and superior in durability. |
