Heating device, auxiliary power supplying device, auxiliary power supplying system, fixing device, and image forming apparatus
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United States of America Patent
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Sep 2, 2008
Grant Date -
May 24, 2007
app pub date -
Jan 18, 2007
filing date -
Jul 12, 2002
priority date (Note) -
In Force
status (Latency Note)
Importance
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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