| 摘要 |
PROBLEM TO BE SOLVED: To provide a high durability process cartridge with which the maintainability, serviceability or the like in an image forming apparatus are satisfactory, and the image to be obtained has high quality, and to provide an image forming apparatus mounted with the process cartridge. SOLUTION: The process cartridge includes: an electrophotographic photoreceptor; and at least one unit selected from the group consisting of a charging unit, and exposure unit, a developing unit and a cleaning unit to be integrated. The electrophotographic photoreceptor comprises naphthalene tetracarboxylic acid diimide or naphthalene tetracarbon imide multimer as a charge transport material. COPYRIGHT: (C)2007,JPO&INPIT
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