Patent ID: 8820900
Filing Date: 2014-09-02
Classification: B41J

Abstract:
1. A liquid ejection head that introduces a supplied liquid into a common liquid chamber through a filter and a liquid introduction path and generates pressure changes in a pressure chamber that communicates with the common liquid chamber by actuating a pressure generating unit, so that the liquid in the pressure chamber is ejected as liquid droplets through nozzles by using the pressure changes, comprising: an ink introduction needle partially defining a filter chamber that is located downstream of an ink introduction needle inlet, the filter chamber being disposed at an inlet opening of the liquid introduction path and is provided with the filter disposed therein; and a flexible film that is disposed on an inner wall of the filter chamber at a position downstream of the filter, wherein the flexible film is configured to deform in accordance with pressure changes different from the pressure changes generated by the pressure generating unit in the liquid introduction path.