| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a technology that reliably blocks energization to a heater of a heating device even when a direct current is input.SOLUTION: A heating device 30 includes a heater 31 that has a first rated current value, a switch 32 that is provided between an AC power supply AC and the heater 31 and has a mechanical contact 32A switching between open and closed states, a fuse 34 that is provided parallel to the switch 32 and has a second rated current value smaller than the first rated current value of the heater 31, and a control device 60. The control device 60 executes detection processing of detecting the waveform of the AC power supply AC, and output processing of outputting a signal to open the mechanical contact 32A to the switch 32 when an abnormal waveform is detected in the detection processing.</p> |
