Patent ID: 7980682
Filing Date: 2011-07-19
Classification: B41J

Abstract:
1. A liquid droplet discharge apparatus which discharges liquid droplets of a liquid, the liquid droplet discharge apparatus comprising: a liquid droplet discharge head including: a voltage-applying mechanism which applies a voltage to the piezoelectric actuator; wherein the first active portion is polarized in a predetermined direction along with a stacking direction of each of the individual electrodes and the first constant electric potential electrode; wherein the second active portion is polarized in a direction opposite to the predetermined direction along with the stacking direction of each of the individual electrodes and the second constant electric potential electrode; and wherein the voltage-applying mechanism selectively applies, to the individual electrodes, a first electric potential and a second electric potential different from the first electric potential, and the voltage-applying mechanism applies the first electric potential to the first and second constant electric potential electrodes.