FIXING DEVICE AND IMAGE FORMING APPARATUS

A fixing device thermally fixes an unfixed image formed on a recording sheet that passes through a nip, the nip being formed by a pressing member pressing against a circumferential surface of a heating rotating body that includes a resistance heating layer. The fixing device includes a power supplie...

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Bibliographic Details
Main Author FUKAYA MAMORU
Format Patent
LanguageEnglish
Published 30.08.2012
Subjects
CINEMATOGRAPHY
ELECTROGRAPHY
ELECTROPHOTOGRAPHY
HOLOGRAPHY
MAGNETOGRAPHY
PHOTOGRAPHY
PHYSICS
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Summary:A fixing device thermally fixes an unfixed image formed on a recording sheet that passes through a nip, the nip being formed by a pressing member pressing against a circumferential surface of a heating rotating body that includes a resistance heating layer. The fixing device includes a power supplier configured to supply power to the resistance heating layer, a driver configured to rotate the heating rotating body, a controller configured to control supply of the power by the power supplier, and an abnormal heat detector configured to detect whether abnormal heat occurs anywhere along an entire surface of a heat-producing region within the heating rotating body, detection being performed during rotation of the heating rotating body. The controller causes the power supplier to stop supplying power to the resistance heating layer when the abnormal heat detector detects abnormal heat.
Bibliography:Application Number: US201213401307