Patent ID: 8914660

Claim:
An image processing apparatus, comprising: a first controller configured to control the whole image processing apparatus and not to be energized in a power saving mode of the image processing apparatus; and a second controller configured to be energized in the power saving mode, wherein the second controller includes a return trigger detecting unit configured to detect a return trigger for returning from the power saving mode to a normal mode of the image processing apparatus, a return trigger identifying unit configured to identify the detected return trigger, a return trigger memory to store the identified return trigger into a storage medium, and a first controller starting unit configured to start energizing the first control unit in accordance with the detection of the return trigger, and the first controller includes a return trigger reading unit configured to read the stored return trigger after the first control unit is energized, and a function activating controller configured to determine a function to be activated preferentially on the basis of the read return trigger and activate the determined function preferentially, wherein the function activating controller determines a function to be preferentially activated on the basis of the read return trigger and activates only the determined function.