Patent ID: 8708459

Claim:
A droplet ejection head that is attachable to and removable from a droplet ejection apparatus, the droplet ejection head comprising: a nozzle plate having multiple nozzle holes to eject droplets; an individual-channel substrate in which multiple individual-liquid-chambers to supply liquid to the nozzle holes are formed, the individual-channel substrate including pressure generating units that apply pressure to liquid in the individual-liquid-chambers; a common-channel substrate to supply liquid to the individual-channel substrate; a base plate made of metal and including a first positioning part to be engaged with a part of the droplet ejection apparatus at a given position to perform positioning with respect to the droplet ejection apparatus in a direction along an opening surface of the nozzle plate at which the nozzle holes are opened; a housing made of resin and including a second positioning part to perform positioning with respect to the droplet ejection apparatus in a direction intersecting with the opening surface and a sealing member extending from a surface of the housing in the direction intersecting with the opening surface; and a plurality of fasteners extending through the base plate and into the sealing member to join the base plate and the housing.