| 摘要 |
<p>PROBLEM TO BE SOLVED: To shorten the standby time and to improve the reliability of temperature control.SOLUTION: A first detection unit 46 detects a heat roller temperature corresponding to a quantity of infrared rays emitted from a heat roller. When power supply to the first detection unit 46 is started, a predictive temperature calculation unit 62I calculates a current predictive temperature of the heat roller from a power shut-off time and a heat roller temperature detected at the time of power shut-off in temperature transition information 63M. A determination unit 62J determines a heating unit control value for controlling a heating unit 42 so that the temperature of the heat roller reaches a preliminarily determined target temperature from the predictive temperature within a first period. A heating control unit 62E controls the heating unit 42 in accordance with the heating unit control value within the first period after the start of power supply to the first detection unit 46.</p> |
