IMAGE FORMING APPARATUS FOR IMPROVING POWER SAVING EFFECT, AND CONTROL METHOD THEREOF

摘要

An image forming apparatus dynamically determines the next communication timing with a server to thereby increase a power saving effect by preventing unnecessary release of the power saving state. The image forming apparatus having a first power state and a second power state in which power is saved more than in the first power state, and having a plurality of functions of periodically communicating with an external apparatus. A remaining time before the image forming apparatus next communicates with the external apparatus is calculated for each of the plurality of functions of periodically communicating with the external apparatus. There is set, in a timer, the shortest one from among the calculated plurality of remaining times. A power state of the image forming apparatus transits from the second power state to the first power state according to the remaining time set in the timer.

主权项

1. An image forming apparatus having a first power state and a second power state in which power is saved more than in the first power state, and having a plurality of functions of periodically communicating with an external apparatus, the image forming apparatus comprising:
a calculation unit configured to calculate a remaining time before the image forming apparatus next communicates with the external apparatus, for each of the plurality of functions of periodically communicating with the external apparatus; a setting unit configured to set, in a timer, the shortest one from among the plurality of remaining times calculated by the calculating unit; and a transition unit configured to cause a power state of the image forming apparatus to transit from the second power state to the first power state according to the remaining time set in the timer.