| 摘要 |
PROBLEM TO BE SOLVED: To reduce the difference of the fluctuations of chargeable potential and residual potential between the starting time and the time after repeated uses and to obtain superior images by adding a specified metal salt in a charge transfer layer. SOLUTION: The photosensitive layer is formed by laminating an undercoat layer composed essentially of an organic compound and a charge generating layer and the charge transfer layer successively in this order on a conductive substrate. This charge transfer layer contains the metal salt represented by the formula in which A1 is an optionally substituted aromatic group; X is a metal atom selected from a group comprising tin, zinc, cobalt, nickel, iron, and chromium; and (n) is the valence of X. The conductive substrate functions as one electrode of the photoreceptor and at the same time, a support of each layer composing the photoreceptor and it may be formed into any of a cylinder and a plate and a film, and its source material may be metals like aluminum, or glass or resin or the like surface-treated to make it electrically conductive.
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