Patent ID: 9561652
Date: 2017-02-07
CPC Classifications: B41J

Claim:
1. An inkjet head comprising: a plurality of groove-shaped pressure chambers configured to be formed on piezoelectric members of which the polarization directions are opposite; a nozzle plate arranged at the lateral side of the pressure chambers across a lid section with high rigidity; and a lid section in which a plurality of through holes connected to a plurality of nozzles formed on the nozzle plate is formed; wherein the Young's modulus of the lid section is set to 100˜200 Gpa, the thickness of a first part of the lid section that covers the pressure chamber is set to 30˜60 μm, and a thin part of which the thickness is thinner than that of the first part is arranged at a second part that covers a common liquid chamber between the pressure chambers; and the nozzle plate is formed by a resin material having a thickness of 25˜75 μm.