Fixing device for color image forming apparatus and control method
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United States of America Patent
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Sep 23, 2008
Grant Date -
Nov 29, 2007
app pub date -
May 24, 2006
filing date -
May 24, 2006
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A fixing device of the invention switches ON a heater lamp of the press roller in a fixing device in a color print mode. In a monochromatic mode, power comparable to the power consumption of the heater lamp can be supplied additionally to an exciting coil on the heat roller side when a heater lamp stays OFF. An amount needed for the heat roller can be therefore added flexibly to the exciting coil. During a warm-up, power comparable to power consumption of the option can be supplied additionally to the exciting coil on the heat roller side.
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