Patent ID: 9216576
Filing Date: 2015-12-22
Classification: B41J

Abstract:
1. An inkjet head, comprising: pressure chambers arranged in two or more rows; and a common ink chamber connected to all the pressure chambers, each of the pressure chambers accepting an ink commonly supplied from the common ink chamber via an ink inlet which faces the common ink chamber and ejecting the ink from nozzles connected to an ink outlet of the pressure chambers due to a change in pressure generated in the pressure chambers, the inkjet head further comprising a damper member inside of the common ink chamber, wherein the shortest distance between the damper member and the ink inlet is shorter than the distance between the ink inlets in adjacent rows thereof; wherein the damper member comprises a damper chamber having a sealed gas; wherein the pressure inside of the damper member is atmospheric pressure or less when the temperature of an ink of the common ink chamber reaches the working temperature.