| 摘要 |
PURPOSE:To reduce the temperature change of the thermal fixing device of an image recorder utilizing an electrophotographic system and to make a warming-up time short. CONSTITUTION:The temperature and the temperature change quantity of the heat roller 10 of the thermal fixing device are detected and the driving time of a heater 1 is decided by fuzzy inference using a fuzzy inference part 220. Thus, the warming-up time can be made short and the change of fixing temperature under a normal state can be restrained. |
