Power source control method of image forming apparatus, power source control system of image forming apparatus, power source control apparatus, image forming apparatus and computer program product

摘要

A control unit 51 obtains a user ID of a user who enters a room from card reading information read by card readers so as to judge existence or nonexistence of an available image forming apparatus which has been judged in advance in accordance with the obtained user ID. The control unit selects the image forming apparatus with the highest frequency in use and turns on the power source thereof when the power source of any image forming apparatus is not made into an on state even when there are some image forming apparatuses which is available for the user who enters the room. Accordingly, it is possible to reduce power consumption by the image forming apparatus while improving convenience for a user in accordance with entrance and exit of the user.