Exchangeable toner cartridge for an image forming apparatus

Details Exchangeable toner cartridge for an image forming apparatus Exchangeable toner cartridge for an image forming apparatus

1996-03-11

1997-11-18

Brase, Sandra L.

Electrophotography

Internal machine environment

Particle or contaminant control

399262, G03G 1508

Patent

active

056897731

ABSTRACT:
An improved exchangeable toner cartridge installed on a developing unit of an image forming apparatus includes a first seal detachably attached to the bottom thereof for closing off a toner supplying opening formed at the bottom, and a second sealing means disposed to the outside of the first seal for preventing the leakage or spread of toner due to the poor attachment of the first seal. Alteratively, the second seal is disposed between the bottom of the toner cartridge and the first seal.

REFERENCES:
patent: 4895104 (1990-01-01), Yoshino et al.
patent: 5018560 (1991-05-01), Tsukamoto
patent: 5294963 (1994-03-01), Nakano et al.
patent: 5383502 (1995-01-01), Fisk et al.
patent: 5475479 (1995-12-01), Hatakeyama et al.
patent: 5513679 (1996-05-01), Yamada

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