| 摘要 |
<P>PROBLEM TO BE SOLVED: To reduce the power consumption by a switching electric power as much as possible while securing stable operations in a power-saving operation mode. <P>SOLUTION: A switching frequency input in the power-saving operation mode to the switching power source which controls the output electric power according to an input switching signal is set based upon the total of power consumptions of a plurality of electric devices, connected to an image forming apparatus, in the power-saving operation mode. <P>COPYRIGHT: (C)2008,JPO&INPIT |
