Power storage unit for an image forming apparatus

摘要

A power storage unit is disclosed that includes a constant voltage generation part (12) configured to generate a constant voltage from a commercial power supply, the constant voltage generation part (12) being connected to an external apparatus operating by consuming power; a voltage increasing circuit (3, 5) configured to increase the constant voltage generated by the constant voltage generation part (12); a capacitor (9) configured to store an electric charge supplied from the voltage increasing circuit (3, 5); a circuit control part (7) configured to control charging of the capacitor (9); and an output part (152a, 152b) configured to output power stored in the capacitor (9), the power having a voltage different from the constant voltage.