Inkjet printing head and printer
AssigneesBrother Kogyo Kabushiki Kaisha, KYOCERA Corporation
InventorsHiroshi Taira, Ayumu Matsumoto
Life of this patent
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Abstract
An inkjet printing head includes: a flow path unit having a plurality of pressure chambers arranged along a plane and connected to nozzles; and an actuator unit fixed on a surface of the flow path unit and changes volume of each of the pressure chambers, the actuator unit including: a plurality of individual electrodes arranged in positions opposite to the pressure chambers respectively; a common electrode disposed to extend over the plurality of pressure chambers and having openings each formed at least at a part of a region opposite to the individual electrodes; and a piezoelectric sheet sandwiched between the common electrode and the individual electrodes.
Claims16
An inkjet printing head comprising:
- a flow path unit having a plurality of pressure chambers arranged along a plane and connected to nozzles;
- and
- an actuator unit fixed on a surface of the flow path unit and changes volume of each of the pressure chambers, the actuator unit including:
- a plurality of individual electrodes arranged in positions opposite to the pressure chambers respectively;
- a common electrode disposed to extend over the plurality of pressure chambers and having openings each formed at least at a part of a region opposite to the individual electrodes;
- and
- a piezoelectric sheet sandwiched between the common electrode and the individual electrodes.
A printer comprising:
- a conveyance mechanism that conveys a recording medium;
- and
- a inkjet printing head that discharges ink on the recording medium and forms an image thereon, the inkjet printing head including:
- a flow path unit having a plurality of pressure chambers arranged along a plane and connected to nozzles:
- and
- an actuator unit fixed on a surface of the flow path unit and changes volume of each of the pressure chambers, the actuator unit including:
- a plurality of individual electrodes arranged in positions opposite to the pressure chambers respectively;
- a common electrode disposed to extend over the plurality of pressure chambers and having openings each formed at least at a part of a region opposite to the individual electrodes;
- and
- a piezoelectric sheet sandwiched between the common electrode and the individual electrodes.
Dependencies are inferred from the claim text.