Temperature control method and apparatus for fusing roller

Details Temperature control method and apparatus for fusing roller Temperature control method and apparatus for fusing roller

1990-04-06

1991-05-28

Walberg, Teresa J.

Electric heating

Heating devices

Combined with container, enclosure, or support for material...

219216, 355290, G03G 1520, H05B 102

Patent

active

050196936

ABSTRACT:
The surface temperature of a fusing roller is controlled by sensing both the surface temperature and the temperature of a source of heat for said roller. Each temperature is compared to a nominal temperature for each to derive two error signals. The two error signals are combined to give a combined error signal, which is used to control the amount of energy applied to the source. The source can be an internally heated core or heated external roller riding on the fusing surface.

REFERENCES:
patent: 4001545 (1977-01-01), Wada
patent: 4035612 (1977-07-01), Ishiguro
patent: 4144835 (1979-03-01), Fukase
patent: 4512649 (1985-04-01), Derimiggio
patent: 4672177 (1987-06-01), Headrick
patent: 4920250 (1990-04-01), Urban

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