Patent ID: 8693225
Filing Date: 2014-04-08
Classification: B41J

Abstract:
1. An electric load driving circuit for driving a single electric load having a capacity component, the electric load driving circuit comprising: a plurality of power sources generating different voltages; a plurality of capacitors, each corresponding to a power source of the plurality of power sources, the plurality of capacitors being electrically connected in parallel to the plurality of power sources; a switch control unit that switches connections between the capacitors and the single electric load and thereby switches the voltage applied to the electric load; a plurality of discharge paths, each corresponding to a capacitor of the plurality of capacitors, each discharge path being individually and selectively controlled to connect the terminals of the corresponding capacitor to a ground so as to discharge an electric charge stored in the corresponding capacitor; and a discharge control unit that controls the plurality of discharge paths so as to control a quantity of electric charge discharged via the plurality of discharge paths.