| 摘要 |
PROBLEM TO BE SOLVED: To prevent the contact of a photosensitive drum with other members and to improve assemblability in a process cartridge attached to an image forming device main body by fitting the photosensitive drum on a drum shaft provided in the image forming device main body. SOLUTION: A drum guide 2a is provided in a drum holder 2, and the edge part 22e of a drum flange 22 is guided by the drum guide 2a and inserted in a drum supporting part 2b. A gap in a radial direction between the supporting part 2b and the edge part 22e when the edge part 22e gets in the supporting part 2b is made smaller than a gap between a photosensitive drum 12 and a developing sleeve 41 and an electrifying sleeve 51 respectively.
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