Patent ID: 9122241
Filing Date: 2015-09-01
Classification: G03G

Abstract:
1. A process cartridge comprising: a developing cartridge including: a developer carrying member defining an axis extending in a first axis direction and configured to rotate around the axis; a developing frame configured to accommodate the developer carrying member therein and having a first side portion and a second side portion that is opposite to the first side portion in the first axis direction; and a first receiving unit disposed on the first side portion and capable of receiving a first driving force for rotating the developer carrying member when the first receiving unit is in a predetermined state; and a drum cartridge including: a drum frame to which the developing frame is mounted such that the developing frame is movable within a prescribed range of distance in the first axis direction relative to the drum frame; a photosensitive drum extending in a second axis direction parallel to the first axis direction and configured to rotate relative to the drum frame, the photosensitive drum is movable in the second axis direction relative to the drum frame within a predetermined range of distance, the photosensitive drum having a first end portion and a second end portion opposite to the first end portion in the second axis direction, the first end portion being closer to the first side portion than to the second side portion, the second end portion being closer to the second side portion than to the first side portion; and a second receiving unit disposed on the first end portion and capable of receiving a second driving force for rotating the photosensitive drum when the second receiving unit is in a predetermined state; and an end member including: a drum contact surface to which the second end portion of the photosensitive drum contacts when both the first receiving unit and the second receiving unit are in the predetermined state; a developing frame contact surface to which the second side portion of the developing frame contacts when both the first receiving unit and the second receiving unit are in the predetermined state; a drum supporting portion configured to rotatably support the photosensitive drum; a developer-carrying-member supporting portion configured to support the developer carrying member when the developing frame is mounted on the drum frame; and an external member contact surface configured to contact with an external member when both the first receiving unit and the second receiving unit are in the predetermined state, the external member contact surface being disposed farther from the second end portion of the photosensitive drum in the second axis direction than the developing frame contact surface is; wherein the end member is provided integrally with the drum contact surface, the developing frame contact surface, and the external member contact surface.