Patent ID: 9557708
Date: 2017-01-31
CPC Classifications: G03G

Claim:
1. An image forming apparatus comprising: a main casing; a process cartridge including a photosensitive drum; and a drawer configured to support the process cartridge and move in a sliding direction between an internal position inside of the main casing and an external position outside of the main casing, the sliding direction being perpendicular to an axial direction of the photosensitive drum, the process cartridge being configured such that in a state that the drawer supporting the process cartridge is at the internal position, the process cartridge moves linearly in a perpendicular direction between a first position and a second position positioned above the first position, the perpendicular direction being perpendicular to both of the axial direction and the sliding direction, the drawer comprising: the process cartridge comprising: each of the first protruding part and the second protruding part extending in the sliding direction, and overlapping with a center of the process cartridge, the process cartridge being configured such that in a state that the drawer supporting the process cartridge is at the internal position, the process cartridge moves from the first position to the second position by the first protruding part being biased by the first biasing part and the second protruding part being biased by the second biasing part, the first biasing member and the second biasing member are provided to the drawer such that in a state that the drawer supporting the process cartridge is at the internal position, the center of the process cartridge is interposed between the first biasing member and the second biasing member, the third biasing member and the fourth biasing member are provided to the drawer such that in a state that the drawer supporting the process cartridge is at the internal position, the center of the process cartridge is interposed between the third biasing member and the fourth biasing member, wherein the first advance/retract part comprises: wherein the second advance/retract part comprises: