| CPC B41J 2/14201 (2013.01) [B41J 2/14209 (2013.01); B41J 2/14233 (2013.01); B41J 2002/14225 (2013.01); B41J 2002/14241 (2013.01)] | 8 Claims |
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1. A head chip comprising:
a flow channel member having a plurality of pressure chambers containing liquid;
an actuator plate which is stacked on the flow channel member in a state of being opposed in a first direction to the pressure chambers;
a drive electrode which is formed on a surface of the actuator plate, the surface facing to the first direction, and which is configured to deform the actuator plate in the first direction so as to change a volume of at least one of the pressure chambers; and
a dividing groove which is configured to zone the actuator plate between the pressure chambers adjacent to each other is formed in a portion of the actuator plate, the portion being located between the pressure chambers adjacent to each other when viewed from the first direction,
wherein the pressure chambers include opening parts which open toward the actuator plate in the first direction,
the drive electrode is disposed on a first surface of the actuator plate, the first surface being opposed to the flow channel member in the first direction,
the dividing groove opens on at least the first surface,
an insulating sheet is attached on the first surface so as to cover the drive electrode and the dividing groove, and
the actuator plate is disposed on the flow channel member via the insulating sheet so as to close the opening parts, and
further wherein the actuator plate is provided with a through hole penetrating the actuator plate in the first direction, and
a through interconnection which is configured to pattern the drive electrode toward a second surface of the actuator plate is formed in the through hole, the second surface facing to an opposite side to the first surface in the first direction.
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