| 摘要 |
A fixing device configured to fix a toner image on a moving printing medium includes: a fixing heat generator that generates heat by electromagnetic induction; a fixing medium that rotates and is heated while being carried by the heating medium; and a pressing member that presses a back surface of the printing medium coming into contact with the fixing medium, the fixing heat generator including a center coil and a pair of side coils provided at a center portion and both side portions thereof along a direction vertical to the direction of movement of the printing medium for heating the fixing medium by induction heating, the pressing member including a center heater and a side heater that heat a center portion and both side portions thereof in a direction vertical to the direction of movement of the printing medium integrated therein, and includes a side temperature sensor that senses at least one of the temperatures of the both side portions in a widthwise direction vertical to the direction of movement of the printing medium, and a heater control unit that turns the side heater OFF when the temperature that the side temperature sensor senses exceeds a predetermined temperature.
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