| 摘要 |
PROBLEM TO BE SOLVED: To obtain an internal exposure type electrophotographic photoreceptor less liable to cause image defects and having high sensitivity and small environmental dependency of its characteristics by disposing a photosensitive layer containing an electric charge generating material, a hole transferring material, an electron transferring material and a resin binder on a light transmissive electrically conductive substrate. SOLUTION: A transparent electrically conductive film 5 is formed on a light transmissive substrate 4 and a photosensitive layer 2 is further laminated on it to obtain the objective monolayer type electrophotographic photoreceptor. A glass or acrylic molding or sheet provided with a transparent electrode may be used as the light transmissive substrate 4. The photosensitive layer 2 contains an electric charge generating material, a hole transferring material and an electron transferring material as electric charge transferring materials and a resin binder. Various phthalocyanine compounds may be used as the electric charge generating material. The hole transferring material may be various hydrazones and the electron transferring material may be various benzoquinone derivatives. A polycarbonate is practically used as the resin binder.
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