Toner image fuser and cartridge for image-forming apparatus

Details Toner image fuser and cartridge for image-forming apparatus Toner image fuser and cartridge for image-forming apparatus

1992-01-31

1994-04-19

Picard, Leo P.

Photocopying

Contact printing

Light boxes

219216, G03G 1520

Patent

active

053050657

ABSTRACT:
A fuser for an image-forming apparatus includes a fusing roller which is replaceable in a cartridge. The fusing roller cartridge includes a cover for covering an access opening providing access to the fusing roller. The cover is openable, either directly by an operator to a latched condition, by the apparatus in response to insertion of the cartridge, by the operator before insertion but held in an uncovering position by the receiving apparatus or by suitable mechanism in the apparatus after insertion of the cartridge. Preferably, the cover closes early in the removal motion so that the fingers of the removing operator cannot touch a hot fusing roller. A metallic heat shield between the fusing roller and the cartridge housing helps prevent the housing from becoming too hot to touch.

REFERENCES:
patent: 4121089 (1978-10-01), Bishop
patent: 4682878 (1987-07-01), Takizawa et al.
patent: 4708455 (1987-11-01), Uubota et al.
patent: 4791448 (1988-12-01), Kawashima et al.
patent: 5045887 (1991-09-01), Nakamura
patent: 5114818 (1992-05-01), Yu
U.S. Patent Application Ser. No. 07/650,260 to D. R. McDougal, filed Feb. 4, 1991.

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