| 摘要 |
<p>A process cartridge which is detachably mountable to a main assembly of an electrophotographic image forming apparatus including a driving shaft (180) having a rotational force applying portion by moving in a direction substantially perpendicular to an axis of the driving shaft, includes i) an electrophotographic photosensitive drum rotatable about an axis; H) a coupling, member engageable with the rotational force applying portion to receive a rotational force for rotating the drum, the coupling member being capable of taking a rotational force transmitting angular position for transmitting the rotational force, a pre-engagement angular position in which the coupling member is inclined away from the axis and a disengaging angular position in which the coupling member is inclined away from the axis and Hi) a regulating portion (170) for regulating an inclination angle of the coupling member such that downward inclination angle of the coupling member is smaller than an inclination angle of the coupling member when the coupling member is at the pre-engagement angular position, wherein in mounting the cartridge to the main assembly, the coupling member moves from the pre-engagement angular position to the rotational force transmitting angular position, and in dismounting the cartridge from the main assembly, the coupling member moves from the rotational force transmitting angular position to the disengaging angular position to disengage from the driving shaft.Fig. 22</p> |
