| 摘要 |
PURPOSE:To raise sensitivity, and stability during repeated uses and to form an always good visible image by combining a carrier generating phase contg. a specified bisazo compd. with a carrier transfer phase contg. a specified carbazole deriv. CONSTITUTION:A photosensitive layer 4 formed on a conductive substrate 1 is composed of a combination of a carrier generating phase contg. a carrier generating material (CGM) of a bisazo compd. represented by formula I , and a carrier transfer phase contg. a carrier transfer material (CTM) of a carbazole deriv. represented by formula II. Said layer 4 may be formed by laminating a carrier generating layer 2 contg. CGM first on the substrate 1, and a carrier transfer layer 3 contg. CTM on the layer 2, or laminated in the reverse order. The substrate 1 may be flexible by laminating a conductive layer 18 on an insulating substrate 1A, such as a resin sheet. Further, an intermediate layer 5 having various functions may be formed between the substrate 1 and the layer 4. A good photosensitive layer 4 is obtained with such a combination of CGM and CTM, and an always superior visible image can be obtained. |
