Cartridge unit

Details Cartridge unit Cartridge unit

G - Physics

03

G

314/40

G03G 15/08 (2006.01)

Patent

CA 2031791

ABSTRACT OF THE DISCLOSURE A toner cartridge unit for a copying machine etc. having a double shutter at the mouth of the toner cartridge. The double shutter is surely locked when the cartridge is not attached to a toner hopper of the copying machine etc. and perfectly prevents toner from coming out. Owing to the double shutter structure, the outside of the cartridge is always clean. When the cartridge unit is attached to the hopper, many locking and releasing mechanisms for the double shutter and a third shutter provided at the hopper entrance work sequentially and automatically as the cartridge is moved from a preparation site to a supplying site of the toner hopper.

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