| 摘要 |
PROBLEM TO BE SOLVED: To provide an electrophotographic photoreceptor using a hydrazone-based compound as a charge transporting agent, which is relatively easily manufactured at a low production cost so as to prevent problems of deterioration due to exposure to light, fog or increase in the residual potential due to photomemory and transfer memory, in an electrophotographic photoreceptor using a cylinder of a small diameter and having a charge transporting layer as a thin film, and also to provide a small-size high picture quality electrophotographic apparatus and a process cartridge free from the above problems by using the above electrophotographic photoreceptor. SOLUTION: The electrophotographic photoreceptor has a photosensitive layer produced by layering at least a charge generating layer and a charge transporting layer containing a charge transporting agent and a binder resin, in this order on a cylindrical conductive substrate having 8 to 25 mm outer diameter, with the charge transporting layer having 5 to 15μm film thickness. In the photoreceptor, the charge transporting layer contains at least a specified charge transporting agent and a binder resin having a specified repeating structural unit. The photoreceptor is used for the process cartridge and the electrophotographic apparatus. COPYRIGHT: (C)2005,JPO&NCIPI
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