| 摘要 |
PURPOSE:To enhance the residual potential characteristics and to obtain high sensitivity by forming a layer contg. phthalocyanine pigment as a charge generating substance and a layer contg. a mixture of an electron donative substance with an electron accepting substance as a charge transferring substance on an electric conductor layer and carrying out specified charging and exposure processes. CONSTITUTION:Nonmetallic or metallic phthalocyanine pigment is stuck to an electric conductor layer by coating, vapor deposition or other method, or it is dispersed in a high molecular compound to form a charge generating layer on the conductor layer. A charge transferring layer contg. an electron donative substance such as a high molecular compound contg. a carbazole ring or an anthracene ring and an electron accepting substance such as nitrofluorenones or a benzoquinone compound is then formed on said charge generating layer to manufacture an electrophotographic plate. The surface of this plate is positively light of 500-800nm to erase the surface charges. Thus, an electrophotographic plate with high sensitivity and favorable repeating characteristics and a record are obtd. |
