Patent ID: 9673810
Date: 2017-06-06
CPC Classifications: B41J,H03K

Claim:
1. A driving circuit for driving a capacitive load, comprising: a charge source that supplies a charge to the capacitive load; a first signal path to which a first voltage is applied by the charge source; a second signal path to which a second voltage that is higher than the first voltage is applied by the charge source; and a connection path selecting section that causes the capacitive load and the charge source to be electrically connected to each other by using the first signal path or the second signal path according to a voltage of a control signal that controls a voltage of a drive signal for driving the capacitive load and a hold voltage of the capacitive load, wherein the charge source includes: the number of output voltages from the first auxiliary power source is smaller than the number of output voltages from the second auxiliary power source.