| 摘要 |
PROBLEM TO BE SOLVED: To provide a call system which reports an abnormal state to a remote report device by a radio signal in the case of occurrence of abnormality in an image forming device or a charging device. SOLUTION: When abnormality occur in an image forming device 1 or a charging device 2, a user depresses a button provided on the charging device 2 to transmit a radio signal indicating the abnormal state from the charging device 2 to a report device 3. When receiving the radio signal transmitted from the charging device 2, the report device 3 calls a worker, who exists in the vicinity of the report device 3 and has knowledge to cope with the abnormal state, by oscillation, light emission, character display, or voice report. |
