Fixing device for use in an image forming apparatus that has fir

Details Fixing device for use in an image forming apparatus that has fir Fixing device for use in an image forming apparatus that has fir

1999-08-12

2000-10-31

Grainger, Quana M.

Electrophotography

Control of electrophotography process

Control of fixing

399 51, G03G 1520

Patent

active

061415111

ABSTRACT:
A copier having a scanner section and a fixing device. The scanner section has an exposure lamp, and the fixing device has an upper roller and a lower roller. The upper roller incorporates a main heater lamp and a sub-heater lamp. While the scanner section is operating, that is, while the exposure lamp remains on, the sub-heater lamp is off, and only the main heater lamp is on. When the exposure lamp is turned off, the main heater lamp and the sub-heater lamp are turned on, thus maintaining the surface temperature of the upper roller within a predetermined range. The exposure lamp and the sub-heater lamp consume the same current. Hence, the total current consumed in the copier always remains less than.

REFERENCES:
patent: 5526103 (1996-06-01), Kato et al.
patent: 5809369 (1998-09-01), Furuya et al.

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