| 摘要 |
An image forming apparatus can change an operating state between a normal mode and a power saving mode having power consumption lower than that of the normal mode. The image forming apparatus sets a detection range based on at least one of an angle of a manipulation panel, existence or non-existence of an output to the sheet discharge unit, and existence or non-existence of placement of the authentication device. The image forming apparatus detects an approach of a human body when the operating state is in the power saving mode. When a sensor detects that the human body approaches the detection range, the image forming apparatus returns the operating state from the power saving mode to the normal mode. |
