Patent ID: 8472839

Claim:
A process cartridge detachably mountable to a main assembly of an image forming apparatus, said process cartridge comprising: a rotatable image bearing member on which an image is to be formed; a rotatable roller which is rotated and contacted to said image bearing member at least during image forming operation; and a supporting device for rotatably supporting a shaft of said rotatable roller at least during the image forming operation, said supporting device including an urging member for urging said rotatable roller toward said image bearing member, a bearing member having a holding portion for holding the shaft of said rotatable roller in a position where said rotatable roller is contacted to said image bearing member by said urging member, wherein a relative movement between said rotatable roller and said supporting device is possible by an external force between a first position in which the shaft of said rotatable roller is urged by said urging member while being held by said holding portion, and a second position in which the shaft of said rotatable roller is not held by said holding portion and in which a distance between a rotation axis of said image bearing member and an axis of said rotatable roller is longer than that in the first position.