Patent ID: 7136604
Filing Date: 2006-11-14
Classification: G03G,H01R

Abstract:
1. A unit detachably mountable to a main assembly of an electrophotographic image forming apparatus, the electrophotographic image forming apparatus including a main assembly electrical contact and a rotatable electrical contact supporting member configured and positioned to support the main assembly electrical contact, said unit comprising: a unit electrical contact configured and positioned to electrically connect to the main assembly electrical contact when said unit is mounted to the main assembly of the apparatus; and an engaging portion configured and positioned to engage the electrical contact supporting member when said unit is inserted into the main assembly of the apparatus, said engaging portion being effective to cause a rotational motion of the electrical contact supporting member in a direction crossing an engaging direction in which said engaging portion is brought into engagement with the electrical contact supporting member, when said unit is being inserted into the main assembly of the apparatus, wherein a sliding motion is imparted between said unit electrical contact and the main assembly electrical contact as a result of said engaging portion causing the rotational motion of said electrical contact supporting member, with said unit electrical contact and the main assembly electrical contact contacting each other, and wherein when said unit is mounted to the main assembly of the apparatus, the rotational motion of the electrical contact supporting member is effective to move the main assembly electrical contact from a position for electrical connection with a grounding contact provided in the main assembly of the apparatus to a position for electrical connection with a connecting contact provided in the main assembly of the apparatus, wherein the connecting contact is electrically connected with control means provided in the main assembly of the apparatus.