POWER SUPPLY DEVICE AND IMAGE PROCESSING DEVICE

摘要

PROBLEM TO BE SOLVED: To provide a power supply device capable of preventing a user from erroneously recognizing that the device itself is abnormal when the device is not started correctly due to the bad condition of input AC power.SOLUTION: A main power source part 710 generates primary DC power P1 from AC power P0, and a first subpower source part 73 and a second subpower source part 74 generate secondary DC power from the primary DC power P1. A subpower source control unit 76 operated by the power of the first subpower source part 73 preferentially outputs a start signal Se to a display system second subpower source part 74a when the detection result of the power state of the main power source part 710 is not good, and outputs an alarm signal to cause a display associated device to output an alarm.SELECTED DRAWING: Figure 2