Patent ID: 9658568
Date: 2017-05-23
CPC Classifications: G03G

Claim:
1. A toner cartridge detachably attachable to a developing unit, the toner cartridge comprising: a casing including a chamber for accommodating toner and a supply hole for supplying toner from the chamber to the developing unit; an agitator rotatable about a rotational axis extending in an axial direction, the agitator being configured to supply toner from the chamber to the developing unit through the supply hole; and a shutter including a peripheral wall for closing the supply hole and a protrusion, the shutter being rotatable about the rotational axis of the agitator with respect to the casing between an open position where the supply hole is opened by the peripheral wall and a closed position where the supply hole is closed by the peripheral wall, the protrusion being movable with respect to the peripheral wall of the shutter between a first position and a second position, the protrusion being engaged with the developing unit in a state where the protrusion is positioned at the first position, the protrusion being disengaged from the developing unit in a state where the protrusion is positioned at the second position, wherein the protrusion is movable between the first position and the second position in the axial direction.