POWER SOURCE DEVICE, DRIVING DEVICE, IMAGE FORMING APPARATUS, AND CONTROL METHOD OF DRIVING DEVICE

摘要

PROBLEM TO BE SOLVED: To provide a power source device that has a plurality of power source lines and can be started and can be continued to be operated if at least any one of the power source lines is connected to external power sources, even when some of the power source lines are not connected to the external power sources.SOLUTION: A power source device 200 supplies a power to control means 9 for controlling drive of a plurality of power supply destinations 16 and 17, and includes power source means 5 for supplying a power to the control means, and switching means 4 connected respectively to the external power sources and can connect the power source means to any one of a plurality of power source lines on a power supply path to the plurality of power supply destinations.