Powder-delivering device for toner cartridge

Details Powder-delivering device for toner cartridge Powder-delivering device for toner cartridge

2007-11-13

2010-10-19

Hannaher, Constantine (Department: 2884)

Electrophotography

Image formation

Development

C399S258000

Reexamination Certificate

active

07817944

ABSTRACT:
A powder-delivering device includes a tapered shell received in a toner cartridge near an outlet of the toner cartridge. The tapered shell has a transection area becoming smaller gradually toward the outlet of the toner cartridge. The tapered shell has an outer surface having at least one projection or at least one recess. The projection of the tapered shell has a spiral or linear shape. The projection has an end, which is remote from the outlet of the toner cartridge, stopped against an inner wall of the toner cartridge. Thus, the powder-delivering device of the invention has simple structure and low product costs.

REFERENCES:
patent: 6038422 (2000-03-01), Loewel
patent: 6104902 (2000-08-01), Meyer et al.
patent: 6137978 (2000-10-01), Tsuchiya et al.

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