| 摘要 |
Driving of a driving unit is controlled so as to satisfy relationship of L>|X+Y|(|X|≰X0, |Y|≰Y0), wherein a distance between an outside end of a separation claw in a width direction when a fixing unit and the separation claw are at respective reference positions and a side end of a sheet, which is winding around a heating roller, in the width direction is L, a displacing amount of the fixing unit detected by a first detecting unit is X, a maximum displacing amount of the fixing unit is X0, a displacing amount of the separation claw detected by a second detecting unit is Y, and a maximum displacing amount of the separation claw is Y0.
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