| 摘要 |
PROBLEM TO BE SOLVED: To provide an image forming device capable of adequately coping with jamming occurring with AC input interruption. SOLUTION: A power source unit 10 outputs a DC voltage based on AC input. The unit 10 has a circuit 12 detecting the zerocross of the AC input. A CPU 31 is driven by the DC voltage, and detects the interruption of the AC input based on the zerocross signal. When jamming occurrence is detected based on the output of a paper sensor 37, jamming data storing is started. In the case of the AC input interruption, only when the jamming data storing is finished before the AC input interruption is detected, the jamming data are assumed to be valid by displaying a jamming data storage finish flag, and the jamming data are utilized when a power source is to be turned on again. |
