Patent ID: 8167405

Claim:
A liquid ejection head, comprising: a plurality of plates including a nozzle plate in which a plurality of nozzles for ejecting liquid are formed, and stacked on each other with the nozzle plate being as an outermost plate, wherein the nozzle plate includes (a) a first area in which the plurality of nozzles are formed and (b) a second area adjacent to the first area and located on a plate-side of the first area in a plates-stack direction in which the plurality of plates are stacked on each other, on which plate-side at least one of the plurality of plates different from the nozzle plate is located, wherein the nozzle plate further includes (a) a first nozzle plate positioner formed in the first area of the nozzle plate and (b) a second nozzle plate positioner larger than the first nozzle plate positioner and formed in the second area of the nozzle plate, and wherein each of the at least one of the plurality of plates different from the nozzle plate includes a plate positioner formed therein and at least partly overlapping the first nozzle plate positioner in the plates-stack direction.