Patent ID: 8843029

Claim:
An image forming apparatus comprising: a main body; a cartridge; and a cartridge holder supported pivotally about a pivot axis by the main body and configured to receive the cartridge, wherein the cartridge comprises: a grip portion comprising a farthest end of the cartridge, the farthest end of the cartridge being farthest from the pivot axis when the cartridge is attached to the image forming apparatus; a first chassis comprising a first portion defining an inner space configured to store developer therein and a second portion defining a port configured to communicate with the inner space of the first chassis, the port being closer to the pivot axis of the cartridge holder than to the farthest end of the cartridge when the cartridge is attached to the image forming apparatus; an agitator comprising an agitator shaft, the agitator shaft configured to agitate developer in the inner space of the first chassis and to rotate about a rotational axis, the rotational axis extending in a first direction; and a gear provided at an end of the agitator shaft, the gear being closer to the pivot axis of the cartridge holder than to the farthest end of the cartridge when the cartridge is attached to the image forming apparatus.