Patent ID: 7798628
Filing Date: 2010-09-21
Classification: B41J,Y10T

Abstract:
1. A liquid droplet ejection head comprising: a nozzle plate that has a plurality of nozzles ejecting a liquid droplet; a flow path member that comprises: a damper portion that is disposed in at least one part of a region, the region being on the nozzle plate, corresponding to the liquid supply paths, the damper portion reducing a fluctuation of an ejection amount of the liquid droplets to enable stable ejection; a protection member separate from the damper portion, the protection member being disposed on a surface of the nozzle plate, the surface being on a liquid droplet ejection side, in a periphery of the nozzles and at least one part of the damper portion; a damper reinforcement portion comprising a first part of the damper portion in which the protection member is disposed; and a damper function portion comprising a second part of the damper portion in which the protection member is not disposed, the second part of the damper portion being distinct from the first part of the damper portion.