Patent ID: 7856198

Claim:
A toner cartridge which is removably held in a toner cartridge holder that is circular-moved with respect to an image forming apparatus main body, the toner cartridge holder is movable between an attaching position where the toner cartridge held in the toner cartridge holder is attached to an image forming apparatus and a removing position where the toner cartridge is removed from the toner cartridge holder, comprising: a cartridge main body; a toner chamber that is provided inside the cartridge main body and contains toner; an opening that enables movement of the toner between a position inside the toner chamber and a position outside the cartridge main body; and a regulation part that regulates movement of the toner cartridge with respect to the toner cartridge holder when the toner cartridge holder is rotated between the attaching position and the removing position, wherein the regulation part is configured to permit predetermined linear movements and predetermined rotational movements.