Liquid ejection head and method for manufacturing damper unit for liquid ejection head

Abstract

A liquid ejection head includes: a plurality of ejection ports; a plurality of pressure chambers configured to communicate with the plurality of ejection ports, respectively; a plurality of pressure generating units installed in the plurality of pressure chambers, respectively, and configured to generate pressure for ejecting the liquid from the ejection ports; a common flow path configured to commonly communicate with the plurality of pressure chambers; a flexible member configured to form a part of a wall surface of the common flow path and configured to be deformable in accordance with pressure fluctuation occurring in the plurality of pressure chambers; and a hollow chamber arranged at a position facing the common flow path via the flexible member, wherein, of the flexible member, a breaking strength at a peripheral portion in the hollow chamber is higher than a breaking strength at a central portion in the hollow chamber.

Dependencies are inferred from the claim text.