Fixing device and fixing heater for use in the same

Details Fixing device and fixing heater for use in the same Fixing device and fixing heater for use in the same

1989-11-02

1992-01-21

Grimley, A. T.

Photocopying

Contact printing

Light boxes

219216, 219469, 355289, G03G 1520

Patent

active

050831682

ABSTRACT:
A fixing device includes a heating element fixedly supported during a fixing procedure, a film, apparatus enabling the film to slide against the heating element, and a pressurizing roller for pressing a recording material on which a toner image is supported against the film. The heating element has a substrate, a heat generating layer provided on the substrate, and a heat-melting portion provided on the substrate. The heat-melting portion melts at a temperature higher than the fixing temperature and lower than the withstanding temperature of the substrate and thereby disconnects the heat generating layer from its power source.

REFERENCES:
patent: 3578797 (1971-05-01), Hodges et al.
patent: 3916256 (1975-10-01), Kotani
patent: 4566779 (1986-01-01), Coli et al.

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