Ink jet recording device

Abstract

A first and second conductor layers are alternately laminated between first and second green sheets formed of piezoelectric ceramic powder, organic binder, plasticizer, etc. The first conductor layer is aligned with a lower end of the green sheet while the second conductor layer is aligned with an upper end of the green sheet. Therefore, the first conductor layers are exposed to the lower surface and connected to the driving electrodes. The second conductor layers are exposed to the upper surface and are connected to a common electrode. Grooves serving as ink channels are formed between the first and second conductor layers. Accordingly, the conductor layers are not exposed to the side surfaces of the ink channels. When a driving voltage is applied to a specific driving electrode of the actuator and the other driving electrodes and the common electrode are grounded, an electric field directed in the same direction as the polarizing direction occurs in the green sheet corresponding portion of the partition wall to which the driving voltage is applied. The partition wall expands by a piezoelectric longitudinal effect and the volume of the ink channel decreases. Through this operation, the ink in the ink channel is jetted from a nozzle.

Dependencies are inferred from the claim text.