| 摘要 |
PURPOSE:To provide an electrophotographic method by which the residual potential or its accumulation caused in a photoreceptor having a surface protective layer comprising a carbon thin film or a thin film essentially comprising carbon can be efficiently decreased while reduction of the charge potential or reduction of picture quantity due to charge fatigue is hardly caused bus stable electrophotographic characteristics can be maintained. CONSTITUTION:Lots of copies using general paper can be obtd. by repeating steps of main electrification, exposure for an image, development, transfer, separation, discharge, and cleaning for an org. photoreceptor having a carbon thin film or a thin film essentially comprising carbon as a surface protective layer. In this electrophotographic method, a step to give charges in the opposite polarity to the main electrification to the photoreceptor and simultaneously, just before or immediately after this step, another step to expose the photoreceptor are added between the cleaning step and the main electrification step. Further, in the main electrification step, the photoreceptor is electrified under at least two different electrification conditions. |
