To provide a regenerated energy utilizing device of a DC motor that further reduces power supply to an image forming device effectively utilizing regenerated energy of a motor that drives a load.

This regenerated energy utilizing device of a DC motor, provided with: a DC motor M that drives a prescribed load; a control circuit 6 that controls the drive of the DC motor M to prescribed revolutions; and a capacitor 5 that accumulates electric power when the DC Motor M is braked by regeneration by the control circuit 6, includes an accumulated power supply circuit 3 that supplies the accumulated power in the capacitor 5 when the DC motor M is started. The regenerated energy utilizing device that further reduces power supply to the image forming device effectively is obtained utilizing the regenerated energy of the DC motor that drives the load.