Patent ID: 8052249
Filing Date: 2011-11-08
Classification: B06B,B41J

Abstract:
1. A droplet discharging head comprising: a nozzle for discharging a droplet of a liquid; a liquid pressurizing chamber connecting with said nozzle and storing the liquid; and an electrostatic actuator for pressurizing the liquid stored in said liquid pressurizing chamber, wherein said electrostatic actuator comprises: wherein said partition parts comprise remaining parts of said sacrifice layer after said etching, the droplet discharging head further comprising dummy electrodes at positions corresponding to said partition parts, said dummy electrodes being electrically separated from said electrode by separation grooves, wherein an insulating layer is formed on said electrode, and said separation grooves are filled with the insulating layer, and wherein a thickness of said insulating layer is equal to or greater than one half of a width of each of said separation grooves.