| 摘要 |
PROBLEM TO BE SOLVED: To prevent the interruption of printing in the case of performing warm-up operation when a power source is turned on and to prevent the wrinkles of paper, the winding thereof and high temperature offset from occurring at the rewarm-up time. SOLUTION: The fixing device where a fixing part is constituted of a fixing roller to which heat is supplied from a heating roller through a belt and a pressure roller incorporating a heater is provided with a fixing roller warm-up mode and a pressure roller warm-up mode as a warm-up mode performed when the power source is turned on.
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