Patent ID: 8727495

Claim:
A liquid droplet discharge apparatus which discharges liquid droplets of a liquid, the apparatus comprising: a flow passage unit which is formed with a plurality of nozzles for discharging the liquid droplets of the liquid and a plurality of liquid flow passages including a plurality of pressure chambers communicated with the plurality of nozzles respectively; an actuator which has a sealing plate joined to the flow passage unit for defining the plurality of pressure chambers and which applies a pressure to the liquid contained in each of the plurality of pressure chambers by changing a volume of each of the plurality of pressure chambers by deforming the sealing plate; and a deformation adjusting member which adjusts a deformation amount of the sealing plate; wherein the deformation adjusting member is constructed so that a portion of the sealing plate, which corresponds to one of the pressure chambers, has a deformation adjustment amount that is different from deformation adjustment amounts of portions of the sealing plate, which correspond to the other pressure chambers; and wherein the deformation adjusting member is constructed so that the deformation amounts of portions of the sealing plate corresponding to the pressure chambers communicated with the plurality of nozzles respectively are adjusted depending on discharge characteristics of the plurality of nozzles.