Patent ID: 8694815

Claim:
A power supply control apparatus comprising: an instruction component configured to instruct image processing that selectively operates a plurality of devices; an execution component configured to operate selected device(s) according to the image processing instructed with the instruction component and to execute image processing; and a power supply control component configured to control so as to independently supply power or interrupt power supply to each of the device(s) for operation according to the image processing that has been instructed by the instruction component, the power supply control component being equipped with a first measurement function and a second measurement function, the first measurement function for measuring a first duration until interrupting the power supply to the device(s) and the second measurement function for measuring a second duration until interrupting the power supply to the device(s), the first duration being longer than the second duration, wherein the first duration of the first measurement function begins at a completion time of a prior image processing, and the second duration of the second measurement function begins at a start time of a later image processing for device(s) to which power is being supplied at the time of completion of the prior image processing but which are not required in the later image processing.