Patent ID: 9377754
Filing Date: 2016-06-28
CPC Classification: G03G

Claim Text:
1. A unit mountable to a main assembly of an image forming apparatus, said unit comprising: a rotatable photosensitive member; a charging roller for contacting and electrically charging said photosensitive member, said charging roller including a shaft; a spacer for spacing said charging roller from said photosensitive member, said spacer including an integral bearing portion provided on said spacer for rotatably bearing said shaft; a drive receiving portion provided on said spacer for receiving a driving force from the main assembly to rotate said spacer about an axis of said shaft so as to shift from a first position for spacing said charging roller from said photosensitive member to a second position for contacting said charging roller to said photosensitive member; and an urging portion for urging said spacer at a contact portion of said spacer that includes a first contact region contacted by said urging portion when said spacer is placed in the first position and a second contact region, which is different from the first contact region, contacted by said urging portion when said spacer is placed in the second position, wherein said contact portion has a shape such that a distance from the axis increases from said second contact region toward said first contact region.