Inkjet head and method of manufacturing inkjet head

摘要

According to one embodiment, an inkjet head includes a substrate, a nozzle plate which includes nozzle lines, each of which includes nozzles, the nozzles which are included in one of the nozzle lines and the nozzles which are included in another of the nozzle lines alternating with each other, and forming one imaginary nozzle line, piezoelectric members which are opposed to the respective nozzle lines, and groove parts which are provided in each of the piezoelectric members, the groove parts corresponding to the nozzles to eject ink from the nozzles and being processed by cutting edges, one of the groove parts which corresponds to one of the nozzles in the imaginary nozzle line and another of the groove parts which corresponds to another nozzle adjacent to the nozzle in the imaginary nozzle line being processed by the cutting edges which are independent of each other.

主权项

1. An inkjet head comprising:
a substrate; a plurality of piezoelectric members disposed on the substrate; a nozzle plate disposed on the piezoelectric members, the nozzle plate including at least first and second nozzle lines, each of which includes a plurality of nozzles, wherein the nozzles included in the first nozzle line and the nozzles included in the second nozzle line are offset with respect to each other in a direction parallel to each of the nozzle lines; and a plurality of groove parts provided in each of the piezoelectric members, the groove parts corresponding to the nozzles and configured to eject ink through the nozzles, wherein a first groove part which corresponds to a first nozzle and a second groove part which corresponds to a second nozzle closest to the first nozzle is formed by different cutting edges, the groove parts include a first groove group of groove parts formed by one of the cutting edges, the first groove group corresponding to a first nozzle group, and a second groove group of groove parts formed by another of the cutting edges, the second grove group corresponding to a second nozzle group, the nozzles located in an end part of the first nozzle group and the nozzles located in an end part of the second nozzle group are offset with respect to each other in a direction parallel to each of the nozzle lines, and the groove parts extend along straight lines in a direction oblique to a direction in which the piezoelectric members extend.