Liquid jet head, liquid jet apparatus, and method of manufacturing liquid jet head

摘要

A liquid jet head includes an actuator portion having a first recessed portion, second recessed portions, and left and right channel rows provided between the first and second recessed portions, respectively, and being offset in a row direction by 1/2 of a channel pitch. Each of the left and right channel rows includes channels each having one end portion opened to the first recessed portion and another end portion opened to one of the second recessed portions. The channels are formed of grooves each sandwiched by two of a series of walls extending from the first recessed portion to one of the second recessed portions. A width of the walls corresponding to one of the left and right channel rows being equal to a width of the grooves corresponding to the other of the left and right channel rows.

主权项

1. A liquid jet head, comprising:
an actuator portion comprising:
a first recessed portion;left and right second recessed portions formed at a distance from the first recessed portion and provided so as to sandwich the first recessed portion therebetween;left and right channel rows provided between the first recessed portion and the left and right second recessed portions, respectively, and being offset in a row direction by ½ of a channel pitch, the left and right channel rows each including a plurality of channels each having one end portion opened to the first recessed portion and another end portion opened to one of the left and right second recessed portions, the plurality of channels being formed of a plurality of grooves each sandwiched by two walls of a plurality of walls extending from the first recessed portion to one of the left and right second recessed portions, and a width of the walls corresponding to one of the left and right channel rows being equal to a width of the grooves corresponding to the other of the left and right channel rows; andleft and right electrode terminal rows provided on a front surface on outer peripheral sides with respect to the left and right second recessed portions, respectively, the left and right electrode terminal rows each including a plurality of electrode terminals for transmitting a drive signal to the left and right channel rows, respectively; a cover plate including a first liquid chamber communicated with the first recessed portion and left and right second liquid chambers communicated with the left and right second recessed portions, respectively, the cover plate being bonded to the actuator portion while exposing the left and right electrode terminal rows and covering the left and right channel rows; and a nozzle plate including left and right nozzle rows each of which is formed of a row of nozzles communicated with the channels of the left and right channel rows, the nozzle plate being bonded to the actuator portion on a side opposite to the cover plate.