| 摘要 |
A coupling member dismounting method for dismounting, from a drum flange (21) mounted to an electrophotographic photosensitive drum, a coupling member (150) for receiving a rotating force for rotating the drum, the method including (i) an inclining step of inclining the coupling member relative to a rotational axis of the drum flange, wherein the coupling member includes a rotating force receiving member having and a spherical portion (160) mounted to a rear end portion of the rotating force receiving member by a pin penetration (155); (ii) a pin urging step of pushing the pin (155) from one end to the other end thereof, (iii) a pin riding step of making a part of the pin which is further projected at the end by the pin urging step ride on a second surface; (iv) a coupling member dismounting step of dismounting the coupling member from the drum flange by applying a force to a free end portion of the coupling member toward a fulcrum which is the portion of the pin riding on the second surface. |
