Electrophotography – Control of electrophotography process – Control of fixing
Reexamination Certificate
2008-09-02
2008-09-02
Owens, Douglas W. (Department: 2821)
Electrophotography
Control of electrophotography process
Control of fixing
C219S216000, C315S112000
Reexamination Certificate
active
11624489
ABSTRACT:
A heating device of the invention comprises a heater, a main power supply, and an auxiliary power supply. The heater includes a main heating element which generates heat with power supplied from the main power supply, and an auxiliary heating element which has a resistance different from a resistance of the main heating element and generates heat with power supplied from the auxiliary power supply. The auxiliary power supply is provided to supply to the auxiliary heating element a current that is different from a current supplied from the main power supply to the main heating element.
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Fujita Takashi
Kishi Kazuhito
Konno Eriko
Matsusaka Susumu
Owens Douglas W.
Ricoh & Company, Ltd.
Vu Jimmy T
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