Patent ID: 7720396

Claim:
A toner cartridge inserted in an image forming apparatus along a first direction said cartridge comprising: a toner cartridge main body which includes an end surface provided along the first direction and contains toner therein; a discharging opening provided adjacent to the end surface which discharges toner; a shutter which is movable in accordance with the movement of the toner cartridge along the first direction to open/close the discharging opening; and a first protrusion provided adjacent to the end surface to apply vibration to the toner cartridge and transmit sound by engaging a second protrusion provided in the image forming apparatus and changing the position relative to the second protrusion in accordance with the movement of the toner cartridge along the first direction, the first protrusion being protruded in a second direction perpendicular to the first direction and provided along a third direction perpendicular to the first direction and the second direction.