Patent ID: 9742946
Date: 2017-08-22
CPC Classifications: H04N

Claim:
1. An image forming system comprising: a main body including a first CPU that controls an electric power mode of the main body and an engine that executes image processing; and an operation apparatus that receives an operation for instructing the engine to execute the image processing, the operation apparatus including a second CPU that controls an electric power mode of the operation apparatus; wherein in a case where the operation apparatus receives an instruction to shift the electric power mode of the main body or the electric power mode of the operation apparatus, the first CPU is configured to determine whether shifting is possible based on a first process program executed by the main body and control an electric power supply of the main body according to the determination, and the second CPU is configured to determine whether shifting is possible based on a second process program executed by the operation apparatus and control an electric power supply of the operation apparatus according to the determination, wherein the electric power mode of each of the main body and the operation apparatus includes a regular mode and a power-saving mode that consumes less electric power than the regular mode, wherein the electric power mode of the main body includes a first mode that prioritizes the reduction of power consumption of the main body and a second mode that prioritizes the speed of shifting from the power-saving mode to the regular mode, wherein when the first mode is set as the electric power mode of the main body, the first CPU is configured to determine whether shifting is possible based on the first process program and control the electric power supply of the main body according to the determination, and wherein when the second mode is set as the electric power mode of the main body, the first CPU is configured to control the electric power supply of the main body regardless of whether shifting is possible.