| 摘要 |
A process cartridge (7) to enter a main assembly in a longitudinal direct ion (E) of the cartridge (7) and to be urged in a direction (F) crossing the longitudinal direction (E) to position the cartridge (7), the cartridge (7) includes a shaft coupling member (48), provided on one axial end of a devel oping roller (25), for transmitting a driving force from the main assembly i ncluding an engaging portion (48c) wherein a distance (D) between an axis (4 8c5) of the engaging portion (48c) and an axis (25y) of the developing rolle r (25) is smaller when the cartridge (7) is positioned to a main assembly po sitioning portion (81-83) than when the engaging portion (48c) is positioned by a holding portion (27f ). |
