| 摘要 |
PROBLEM TO BE SOLVED: To provide a process cartridge in which a developing cartridge can be replaced without the direct contact between old developer and new developer.SOLUTION: In a process cartridge 15, a developing cartridge 19 including a developing roller 34 is attached and detached in such a manner that the collar member 54 of the developing cartridge 19 is guided to the guide groove 85 of a drum cartridge 18 including a photoreceptive drum 20. The guide groove 85 is formed in a crossing direction crossing a virtual line L1 connecting the drum center 114 of the photoreceptive drum 20 and the roller center 115 of the developing roller 34 coming into contact with the photoreceptive drum 20 in an attachment state. |
