Cartridge including cartridge frame, first to third electrodes positioned at cartridge frame, and cartridge memory movable relative to cartridge frame

A cartridge attachable to and detachable from a drawer movable in a first direction relative to a main housing of an image forming apparatus between a first position in which the drawer is accommodated in the main housing and a second position in which at least a part of the drawer is positioned outside the main housing, the cartridge comprising:

• a photosensitive drum including a drum shaft extending in a second direction crossing the first direction;
• a developing roller including a developing shaft extending in the second direction;
• a cartridge frame supporting both the photosensitive drum and the developing roller;
• a first electrode positioned at one end portion of the cartridge frame in the second direction;
• a second electrode positioned at one end portion of the cartridge frame in the first direction;
• a third electrode positioned at an other end portion of the cartridge frame in the first direction;
• and
• a cartridge memory positioned at the one end portion of the cartridge frame in the second direction, the cartridge memory being movable in the second direction relative to the cartridge frame, the cartridge memory including:
• a memory electrode facing in the second direction.