| 摘要 |
PROBLEM TO BE SOLVED: To reduce waste of electric power under respective states of a processing section, on assumption that the processing section shifts between a plurality of states with at least different power supply modes, when power supply to the processing section is controlled according to a detecting state of a mobile body.SOLUTION: A first human sensor 28 and a second human sensor 30 have basic functions to perform shift control to a standby mode (an operation mode 1) by detecting a mobile body (a user) during a sleep mode, when the user temporarily moves away from an image processor 10, perform partial power-saving control during a running mode (an operation mode 2) for increasing an energy saving object; and perform shift control to the sleep mode (an operation mode 3) by detecting no mobile body (no user) during the standby mode, the shift control being performed combined with shift control by a timer.SELECTED DRAWING: Figure 3 |
