| 摘要 |
An electrical apparatus has a controller for switching between a normal power mode and power saving modes. A receiver receives instructions for a manipulation on the apparatus. A switch controller switches to a first power saving mode when no instruction for manipulation is received within a first standby time in the normal power mode, switches to a second and lower power saving mode when no instruction for manipulation is received and the time reaches a preset second standby time in the first power saving mode, switches to the normal power mode when an instruction for manipulation is received when the apparatus is in the first or second power saving mode, and switches to the second or a third power saving mode for supplying less power than the first power saving mode but more than the second when the time reaches the first standby time if a predetermined condition is satisfied. |
