Patent ID: 8579416

Claim:
A droplet discharging head, comprising: a plurality of discharging chambers, each of the plurality of discharging chambers having a chamber bottom wall and first and second chamber side edges; a plurality of nozzle orifices discharging droplets and each of the plurality of nozzle orifices is communicated with one of the discharging chambers, the plurality of nozzle orifices are formed in a nozzle substrate; a plurality of actuators, each of the plurality of actuators including: a vibrating plate constituted by the chamber bottom wall which is drivably displaceable; and a reservoir commonly communicated with each of the plurality of discharging chambers, the reservoir having a reservoir bottom wall and first and second reservoir side edges, wherein the plurality of nozzle orifices, the first chamber side edge and the first reservoir side edge are located near a center of the nozzle substrate, and the second chamber side edge and the second reservoir side edge are located near an edge of the nozzle substrate, the plurality of discharging chambers, the plurality of actuators, and the reservoir are each segmented on separate planes and stacked in this order so that the plurality of discharging chambers, the plurality of actuators, and the reservoir are vertically aligned in a direction perpendicular to the reservoir bottom wall, the first reservoir side edge of the reservoir is overlapped by the plurality of discharging chambers and the plurality of actuators, the plurality of nozzle orifices are located near the first chamber side edge, the first chamber side edge is angled relative to a droplet discharging direction in which the droplets are discharged from the plurality of nozzle orifices, the plurality of nozzle orifices and the first chamber side edge are vertically aligned in the droplet discharging direction, a first ink flow direction in the reservoir is from the first reservoir side edge toward the second reservoir side edge, the first ink flow direction is perpendicular to the droplet discharging direction, and a second ink flow direction in each of the plurality of discharging chambers is from the second chamber side edge toward the first chamber side edge, the second ink flow direction is opposite to the first ink flow direction.