Patent ID: 11927913
Assignee: CANON KABUSHIKI KAISHA
Field: Optics (Instruments)
Classification: CPC G | IPC G

Claim 18:
19. A cartridge unit attachable to and detachable from an apparatus main body, including a main body contact, of an image forming apparatus, the cartridge unit comprising:
a first unit including a photosensitive drum and a developing roller; and
a second unit configured to be:
attachable to and detachable from the first unit and supply developer to the first unit in a state where the second unit is attached to the first unit; and
attachable to and detachable from the apparatus main body in the state where the second unit is attached to the first unit,

wherein the second unit includes:
an end surface, which is at an end portion of the second unit with respect to a rotational axis direction of the developing roller, extending in a direction crossing the rotational axis direction of the developing roller; and
a first storage member that stores information,

wherein the first storage member is disposed on the end surface, and includes:
a first storage element; and
a first memory contact electrically connected to the first storage element,

wherein, in the state where the second unit is attached to the first unit and in a state where the second unit is attached to the apparatus main body, the first memory contact directly contacts the main body contact,
wherein the first unit includes a developing contact electrically connected to the developing roller, and
wherein a top end of the first memory is higher than a top end of the developing contact in a state where the cartridge unit is attached to the apparatus main body.