CPC G03G 21/1814 (2013.01) [G03G 21/1671 (2013.01); G03G 21/1821 (2013.01); G03G 21/1853 (2013.01); G03G 21/1864 (2013.01); G03G 21/1878 (2013.01)] | 18 Claims |
1. A cartridge detachably mountable on an apparatus body of an image forming apparatus, the cartridge comprising:
a development unit including:
a developing frame including a toner storage portion configured to store a toner,
a development roller configured to rotate around a rotational axis extending in a first direction, and
a development memory including a first electrode contact surface provided on a first end side of the developing frame in the first direction; and
a drum unit on which the development unit is detachably mountable, the drum unit including:
a photosensitive drum,
a drum frame supporting the photosensitive drum,
a drum memory including a second electrode contact surface provided on a second end side, which is the same side as the first end side of the developing frame, of the drum frame in the first direction, and
a portion-to-be-guided configured to be guided by the apparatus body during mounting of the cartridge on the apparatus body, the portion-to-be-guided protruding from an end surface of the drum frame on the second end side in the first direction,
wherein in a mounted state where the development unit is mounted on the drum unit, the first electrode contact surface is provided between the development roller and the second electrode contact surface in a second direction, which intersects with the first direction, and
wherein in the mounted state, the portion-to-be-guided is provided between the development roller and the second electrode contact surface in the second direction.
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