US Patent 7106468 Image forming system and image forming apparatus

An image forming system includes an image forming apparatus which can wirelessly transmit information that there is a waiting job and has a plurality of modes concerning power consumption, a portable terminal which can receive the information transmitted from the image forming apparatus, a position detector which detects a position of the portable terminal, and a mode switcher which switches from one mode concerning power consumption of the image forming apparatus to another in accordance with the position of the portable terminal which received the information. The position detector detects the distance between a user carrying the portable terminal and the image forming apparatus. Based on the distance data at the time when the portable terminal received the information that there is a document waiting for being outputted by the image forming apparatus, the mode concerning power consumption of the image forming apparatus is switched by the mode switcher.