Patent ID: 9217986
Filing Date: 2015-12-22
Classification: G03G

Abstract:
1. An image forming apparatus comprising: an image bearing member for bearing a toner image; a transfer member for transferring the toner image from said image bearing member onto a sheet in contact with said image bearing member; an openable unit, including a locking portion capable of opening and closing by being rotated relative to a main assembly of said image forming apparatus; a lock member for locking said openable unit to the main assembly in a closed state by being engaged with said locking portion; a rotatable cam member, provided in the main assembly, configured to move said transfer member toward and away from said image bearing member; a force receiving portion, provided on said openable unit and capable of receiving a reaction force, in contact with said cam member; wherein when said cam member in a position spaced from said force receiving portion starts rotation thereof, said force receiving portion receives a first force for moving said locking portion away from said lock member in a state in which said cam member starts contact with said force receiving portion and receives a second force for moving said locking portion toward said lock member by further rotation of said cam member.