Patent ID: 8092002

Claim:
A liquid droplet ejection head comprising: a passage unit including: a plurality of pressure chambers each configured to be communicated through an outflow passage with each of a plurality of nozzles configured to eject liquid droplets; a common liquid chamber configured to supply liquid from a liquid supply source to the pressure chambers; and a damper chamber configured to absorb pressure fluctuations of the common liquid chamber; and an energy generator configured to apply an ejection pressure to the liquid in the pressure chamber; wherein the passage unit includes: a manifold plate having a manifold hole constituting the common liquid chamber; and a damper plate which is stacked on the manifold plate and includes a damper wall facing the common liquid chamber and having flexibility; wherein the damper plate includes: a base portion on which a damping space constituting the damper chamber is formed at a position corresponding to the manifold hole in plan view; and a resin member disposed on one surface of the base portion which surface faces the manifold plate; and wherein the resin member is provided to cover at least a portion above and around the damping space so as to form the damper wall, and is smaller in a contour shape than the common liquid chamber in plan view so as to be stored in the manifold hole.