Patent ID: 8516286

Claim:
A method of controlling a power save mode of an image forming apparatus connected to a host apparatus, the method comprising: requesting information on a power mode of the image forming apparatus by the host apparatus; transmitting the power mode information and information on an entering time for a power save mode of the image forming apparatus from the image forming apparatus to the host apparatus; displaying the entering time for the power save mode of the image forming apparatus on the basis of the entering time information to enable control of the power save mode of the image forming apparatus at the host apparatus; and changing the value of the entering time to another value according to a user's input at the host apparatus, wherein the changing the value of the entering time comprises changing the value of the entering time according to a requesting priority if there are a plurality of requests for changing the value of the entering time from a plurality of host apparatuses, and the requesting priority is set on a basis of a remaining time until entering the power save mode.