Invention Grant
US07623818B2 Belt fixing device and image forming apparatus therewith 失效
带固定装置及其成像装置

Belt fixing device and image forming apparatus therewith
Abstract:
A belt fixing device includes an endless belt member, an excitation coil and a deterioration detection unit. The endless belt member includes a metal layer. The excitation coil heats the metal layer by electromagnetic induction. The deterioration detection unit detects deterioration of the metal layer of the belt member through the excitation coil.
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