| 摘要 |
PURPOSE:To obtain the separate function type electrophotographic sensitive body having high sensitivity and excellent potential stability at the time of repetitive use by providing an under coating layer contg. an acid on a conductive base. CONSTITUTION:The under coating layer 2 is provided on the conductive base and a charge generating layer 3 and a charge transfer layer 4 are successively provided thereon. The under coating layer 2 is formed by application of a coating liquid which contains 0.0001 to 0.5pts. acid per 1pt.wt. binder resin of the under coating layer 2 and is prepd. by incorporating the acid into a binder resin soln. Inorg. acids, such as hydrochloric acid, sulfuric acid, hydrobromic acid, phosphoric acid, and hydrofluoric acid, and org. acids, such as formic acid, acetic acid, propionic acid, butyric acid, lactic acid, benzoic acid, and benzensulfonic acid, are used as the acid to be incorporated into the coating liquid. The sensitivity is improved in this way and the potential stability at the time of repetitive use is improved. The residual potential is lowered and the deterioration in image quality is prevented. |
