Heating apparatus and image forming apparatus
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United States of America Patent
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Aug 26, 2014
Grant Date -
Nov 17, 2011
app pub date -
Apr 25, 2011
filing date -
May 12, 2010
priority date (Note) -
In Force
status (Latency Note)
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Abstract
The heating apparatus includes a first detection part which detects whether or not the power supplied to the heat generation member is in an overpower state by detecting a positive phase of a half wave in an alternating voltage of a commercial power supply applied to the first or the second current path of the heat generation member, a second detection part which detects whether the power supplied to the heat generation member is in an overpower state or not by detecting a negative phase of a half wave in an alternating voltage the commercial power supply applied to the first current path or the second current path of the heat generation member, and a control part which controls itself to stop supplying power from the commercial power supply to the heat generation member in a case where an overpower state is detected by the first or second detection part.
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