Toner cartridge

Electrophotography – Internal machine environment – Particle or contaminant control

Reexamination Certificate

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Details

C399S262000

Reexamination Certificate

active

07031635

ABSTRACT:
The present invention relates to a toner cartridge, which contains the toner directly in a housing. The housing has an opening. A plug is disposed in the housing where the opening is. The plug has a small diameter portion that has a diameter smaller than the opening. A piston is disposed in the housing to be biased by an elastic member to the plug for sealing the opening. Such toner cartridge has a simple structure to reduce the cost of fabrication and use and has a function of preventing leaking toner.

REFERENCES:
patent: 6665508 (2003-12-01), Sudo et al.
patent: 6671482 (2003-12-01), DiIanni et al.

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