Toner discharging opening covered by arcuate shutter

Full Title

Apparatus for electrophotographic processes > Developing structures, details > Toner cartridge or other attachable and detachable container for supplying developer material to replace the used material > having a longitudinal rotational axis, around which at least one part is rotated when mounting or using the cartridge > Generally horizontally mounting of said toner cartridge parallel to its longitudinal rotational axis > Toner discharging opening covered by arcuate shutter