Patent ID: 8462375

Claim:
An image forming apparatus comprising: a power supply starting unit configured to start supplying electric power to the image forming apparatus in response to a power switch being turned on; a power supply stopping unit configured to stop supplying the electric power to the image forming apparatus in response to the power switch being turned off; a setting unit configured to set, before the power supply stopping unit stops supplying the electric power to the image forming apparatus in response to the power switch being turned off, the image forming apparatus to operate in an operation mode, wherein the operation mode is one of a first mode in which the image forming apparatus operates with predetermined power consumption such that image formation is performed within a predetermined time period in response to receiving an image formation request or a second mode in which the image forming apparatus operates with power consumption that is lower than the predetermined power consumption such that image formation is performed after a time period that is longer than the predetermined time period in response to receiving the image formation request; a storage unit configured to store the operation mode set by the setting unit; a control unit configured to control the image forming apparatus to operate in the operation mode stored in the storage unit when the power supply starting unit starts supplying the electric power to the image forming apparatus in response to the power switch being turned on; and an operation display unit configured to provide an interface between the image forming apparatus and a user; wherein the setting unit displays a selection screen on the operation display unit prompting the user to select the first mode or the second mode of the operation mode employed at startup when the power supply stopping unit starts a power supply stopping procedure in response to the power switch being turned off.