Temperature control method for use in a fusing device of an...

Details Temperature control method for use in a fusing device of an... Temperature control method for use in a fusing device of an...

2007-08-07

2007-08-07

Grainger, Quana (Department: 2852)

Electrophotography

Control of electrophotography process

Control of fixing

C399S070000

Reexamination Certificate

active

10732249

ABSTRACT:
A temperature control method for use in a fusing device of image forming apparatus having a fusing roller and a heater heating the fusing roller, including: sensing a surface temperature T of the fusing roller at one of when the image forming apparatus is turned on, when the image forming apparatus begins a normal operation from a power saving operation, and when a cover of the image forming apparatus is closed after being opened; comparing the sensed surface temperature T of the fusing roller with a set temperature; driving the heater until the surface temperature T reaches a first target temperature Tt1when the sensed surface temperature T is below the set temperature; and driving the heater until the surface temperature T reaches a second target temperature Tt2when the sensed surface temperature T is over the set temperature.

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