| 摘要 |
An image forming apparatus includes first and second memories, and a main controller and a sub-controller. The main controller performs a control operation using the first memory in a normal mode state, the sub-controller is mounted on an engine unit provided in the image forming apparatus to perform an image forming job by driving the engine unit in a normal mode state under the control of the main controller, the main controller transmits a low-power mode change request to the sub-controller if a condition for changing a mode state from the normal mode state to a low-power mode state is satisfied, and the sub-controller copies a low-power service program stored in the first memory into the second memory if the low-power mode change request is received, and performs a low-power service by executing the low-power service program through accessing of the second memory. |
