Patent ID: 9735774
Date: 2017-08-15
CPC Classifications: B41J,H03K

Claim:
1. A capacitive load driving circuit for repeating between charging and discharging for a capacitive load, the capacitive load driving circuit comprising: a charge supply source; a first signal path through which a first voltage is applied by the charge supply source; a second signal path through which a second voltage higher than the first voltage is applied by the charge supply source; a detector configured and arranged to detect whether or not a holding voltage of the capacitive load is less than the first voltage, or whether or not the holding voltage of the capacitive load is equal to or greater than the first voltage and less than the second voltage; and a connection path selector configured to electrically connect the capacitive load and the charge supply source via at least one of the first signal path and the second signal path, in accordance with a control signal, the charge supply source being arranged and configured to supply voltage to the connection path selector.