TONER CARTRIDGE, ADAPTOR FOR TONER CARTRIDGE, TONER CARTRIDGE ASSEMBLY AND IMAGE FORMING APPARATUS

摘要

A toner cartridge (20) is provided with a cartridge main body (21) as a container filled with a developer, and a shutter mechanism (25) which opens/closes a developer discharging port (231) formed on the cartridge main body (21). The cartridge main body (21) is provided with a pair of end walls (a left end wall (22) and a right end wall (23)) facing each other, and a body section (24) arranged between the pair of end walls (22, 23). The body section (24) has a Reuleaux-polygonal cross section that orthogonally intersects with the tube center direction.