| 摘要 |
PROBLEM TO BE SOLVED: To provide a light-shielding protective sheet excellent in safety and workability while evading the exposure of the photoreceptive surface of an image forming cartridge as much as possible. SOLUTION: The exposure of a photoreceptor is suppressed as much as possible by directly winding the light-shielding protective sheet covering a photoreceptive surface exposed from the aperture of the frame body 20 a cartridge 6 from the upper side of the frame body, and a top end side guide part 7 is exposed to the outside by removing a sheet part corresponding to the top end side guide part 7 in a cartridge inserting direction, and interference between a protective sheet 1 and the guide member 9 of a device main body is prevented, and the protective sheet 1 is engaged with the guide part on the side of the device main body while being wound on a cartridge 6, so that the workability and safety are improved. |
