| 摘要 |
PURPOSE:To enhance electrophotographic characteristics of a photosensitive body by incorporating a specified dihydropyrazine derivative as an electric charge transfer material. CONSTITUTION:The photosensitive layer contains as an electric charge transfer material the dihydropyrazine derivative represented by formula I in which each of R1 and R4 is H, alkyl, aryl, or the like and each of R2, R3, R5, and R6 is H, alkyl, aralkyl, or the like. As said derivative, the compound of formula II and the like can be used, and it can be used together with another charge transfer material. It is preferred to use phthalocyanine, such as tau-type metal-free phthalocanine, and the like for a charge generating material, and the photosensitive layer can be formed as a single layer type or a laminate type. |
