| 摘要 |
A power supply method for an image forming apparatus according to the invention includes: calculating a frequency of use of an associated unit that shares a power source with an image forming unit, for each associated unit; setting power supply to the associated unit from the power source to ON-setting or OFF-setting for each associated unit in accordance with the frequency of use; and controlling the power supply to the associated unit for each associated unit in accordance with the ON-setting or the OFF-setting at the time of starting the image forming unit.
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