Fixing device having a power supply control element for controll

Details Fixing device having a power supply control element for controll Fixing device having a power supply control element for controll

1995-07-19

1997-09-23

Brase, Sandra L.

Electrophotography

Diagnostics

Fixing

399330, G03G 1520

Patent

active

056714629

ABSTRACT:
A fixing device includes a first heater, a second heater having a heat distribution different from that of the first heater, a heating member heated by the first and second heaters, and a temperature detecting element for detecting the temperature of the heating member. A power supply control element controls the power supply to the first heater and second heater in such a manner that the temperature detected by the temperature detecting element is maintained at a target temperature. After a fixing operation and until the temperature detected by the temperature detecting element rises from the fixing temperature to a stand-by temperature higher than the fixing temperature, the power supply element is adapted to effect power supply control different from that in the stand-by state.

REFERENCES:
patent: 5041718 (1991-08-01), d'Hondt et al.
patent: 5109255 (1992-04-01), Nishikawa et al.
patent: 5241159 (1993-08-01), Chatteriee et al.
patent: 5355203 (1994-10-01), Nishikawa et al.
patent: 5412453 (1995-05-01), Matsuo

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