| 摘要 |
An image forming apparatus having a communication interface receives image data through the communication interface to form an image. The image forming apparatus includes a power supply unit, a states monitor unit, and a mode switch unit. The power supply unit supplies electric power either in an operation mode in which the electric power necessary to form the image is supplied or in a power saving mode in which stand-by electric power is supplied. The states monitor unit monitors a connection state and a non-connection state of the communication interface. In the power saving mode, the mode switch unit switches the power supply unit to the operation mode, in response to detection by the states monitor unit of either of a change from the non-connection state to the connection state or a change from the connection state to the non-connection state.
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