Patent ID: 8610915

Claim:
An image processing apparatus configured to shift between a sleeping state and a processing state, the image processing apparatus comprising: an image processing unit configured to execute an image process in accordance with an instruction by a user when the image processing apparatus is in the processing state; an accumulating unit configured to accumulate electric energy consumed in a preparation process of the image processing unit for each user, wherein the preparation process is carried out when the image processing apparatus is in the sleeping state, and wherein the image processing apparatus is configured to shift to the processing state upon the preparation process being completed; and a control unit which, in a case where the image processing unit is made usable by a specific preparation process and executes image processes in accordance with a plurality of instructions by a plurality of users in the processing state and then shifts to the sleeping state from the processing state, is configured to control the accumulating unit to allot and accumulate to each user only the electric energy consumed in the specific preparation process for each respective user of the plurality of users that has instructed to execute image processes executed after the specific preparation process.