Inkjet head and a method of manufacturing thereof
AssigneesBrother Kogyo Kabushiki Kaisha, KYOCERA Corporation
InventorsHidetoshi Watanabe, Shin Ishikura
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Abstract
To provide an inkjet head that maintains a reliable electric connection between a flow channel unit and a common electrode of an actuator unit, a flow channel unit is provided with a cavity formed on an attachment surface of flow channel unit to attach to an actuator unit, and the actuator unit is provided with a contact terminal connected to the common electrode and formed at a position facing the cavity when the flow channel unit and the actuator unit are attached. The common electrode is reliably connected to the flow channel unit through the contact terminal and a conductive material filling the cavity.
Claims10
An inkjet head, comprising:
- a flow channel unit comprising:
- a plurality of nozzles;
- and
- a plurality of pressure chambers, each pressure chamber being connected to a uniquely corresponding nozzle;
- and
- an actuator unit attached to the flow channel unit, the actuator unit comprising:
- a piezoelectric sheet;
- a plurality of individual electrodes, each individual electrode facing a uniquely corresponding pressure chamber;
- and
- a common electrode which, with the plurality of individual electrodes, sandwiches the piezoelectric sheet;
- wherein a contact terminal electrically connected to the common electrode is exposed on an attachment surface of the actuator unit to attach to the flow channel unit,
- wherein a cavity facing the contact terminal is formed in the flow channel unit and an opening of the cavity is formed at an attachment surface of the flow channel unit to attach to the actuator unit, and
- wherein a conductive material filled in the cavity electrically connects the contact terminal of the actuator unit with the flow channel unit.
Dependencies are inferred from the claim text.