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US 2003/0156167 A1Published application
Ink-jet head and its manufacture method, ink-jet printer and method for manufacturing actuator unit
AssigneeBrother Kogyo Kabushiki Kaisha
InventorsAtsuo Sakaida, Yuji Shinkai, Takeshi Asano, Atsushi Hirota
Life of this patent
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Abstract
A method for manufacturing an ink-jet head, including forming a mark for indicating the positions of pressure chambers on a surface of a passage unit; preparing a member containing a piezoelectric sheet on which a common electrode is supported; attaching the member to the surface of the passage unit; and forming individual electrodes, based on the mark, on a face of the member facing the direction opposite to the attached face thereof to the passage unit.
Claims24
A method for manufacturing an ink-jet head including:
- a passage unit including a plurality of pressure chambers each having one end coupled to a nozzle and the other end to be coupled an ink supply source, the plurality of pressure chambers being arranged along a same plane adjacent to each other;
- and
- a plurality of actuator units attached to a surface of the passage unit for changing the volume of each of the pressure chambers, each actuator unit having a common electrode kept at a constant potential, a plurality of individual electrodes disposed at positions respectively corresponding to the pressure chambers, and a piezoelectric sheet sandwiched between the common electrode and the individual electrodes,
- the method comprising:
- forming a mark on the surface of the passage unit;
- preparing a member containing the piezoelectric sheet on which the common electrode is supported;
- attaching the member to the surface of the passage unit;
- and
- forming the individual electrode, based on the mark, on a face of the member facing the direction opposite to the attached face thereof to the passage unit.
6 more elements
An ink-jet head comprising:
- a passage unit including a plurality of pressure chambers each having one end coupled to a nozzle and the other end to be coupled to an ink supply source, the plurality of pressure chambers being arranged along a plane adjacent to each other;
- and
- a plurality of actuator units attached to a surface of the passage unit for changing the volume of each of the pressure chambers, each actuator unit having a common electrode kept at a constant potential, a plurality of individual electrodes disposed at positions respectively corresponding to the pressure chambers, and a piezoelectric sheet sandwiched between the common electrode and the individual electrodes,
- wherein the ink-jet head is manufactured by a method comprises:
- forming a mark on the surface of the passage unit;
- preparing a member containing the piezoelectric sheet on which the common electrode is supported;
- attaching the member to the surface of the passage unit;
- and
- forming the individual electrode, based on the mark, on a face of the member facing the direction opposite to the attached face thereof to the passage unit.
6 more elements
An ink-jet printer including an ink-jet head comprising:
- a passage unit including a plurality of pressure chambers each having one end coupled to a nozzle-and- the other end to be coupled to an ink supply source, the plurality of pressure chambers being arranged along a plane to neighbor each other;
- and
- a plurality of actuator units attached to a surface of the passage unit for changing the volume of each of the pressure chambers, each actuator unit having a common electrode kept at a constant potential, a plurality of individual electrodes disposed at positions respectively corresponding to the pressure chambers, and a piezoelectric sheet sandwiched between the common electrode and the individual electrodes,
- wherein the ink-jet head is manufactured by a method comprising:
- forming a mark on the surface of the passage unit;
- preparing a member containing the piezoelectric sheet on which the common electrode is supported;
- attaching the member to the surface of the passage unit;
- and
- forming the individual electrode, based on the mark, on a face of the member facing the direction opposite to the attached face thereof to the passage unit.
6 more elements
A method for manufacturing an ink-jet head including:
- a passage unit including a plurality of pressure chambers each having one end coupled to a nozzle and the other end to be coupled to an ink supply source, the plurality of pressure chambers being arranged along a plane to neighbor each other;
- and
- a plurality of actuator units attached to a surface of the passage unit for changing the volume of each of the pressure chambers, each actuator unit having a common electrode kept at a constant potential, a plurality of individual electrodes disposed at positions respectively corresponding to the pressure chambers, and a piezoelectric sheet sandwiched between the common electrode and the individual electrodes,
- the method comprising:
- forming a first mark on the surface of the passage unit;
- preparing a member containing the piezoelectric sheet on which the common electrode is supported;
- forming a second mark on the member;
- attaching the member to the surface of the passage unit so that the first mark and the second mark have a predetermined positional relation;
- and
- forming the individual electrode, based on the first or second mark, on a face of the member facing the direction opposite to the attached face thereof to the passage unit.
7 more elements
An ink-jet head comprising:
- a passage unit including a plurality of pressure chambers each having one end couple to a nozzle and the other end to be couple to an ink supply source, the plurality of pressure chambers being arranged along a plane to neighbor each other;
- a plurality of actuator units attached to a surface of the passage unit for changing the volume of each of the pressure chambers, each actuator unit having a common electrode kept at a constant potential, a plurality of individual electrodes disposed at positions respectively corresponding to the pressure chambers, and a piezoelectric sheet sandwiched between the common electrode and the individual electrodes;
- and
- a conductive film, having a thickness substantially equal to that of the individual electrodes, formed on a face of the actuator unit facing the direction opposite to the attached face thereof to the passage unit while separated from the individual electrodes.
1 more element
A method for manufacturing an actuator unit including a piezoelectric sheet, the actuator unit to be laminated on a passage unit having a plurality of pressure chambers formed therein, the method comprising:
- preparing a member containing a piezoelectric sheet on which a common electrode is supported, the common electrode being provided to be common to pressure chambers and exposing from a side face of the member;
- forming a surface electrode covering a face of the member facing the direction opposite to a face of the member to be attached to the passage unit and contacting with the common electrode on the side face of the member;
- and
- partially removing the surface electrode to form individual electrodes at positions corresponding to the respective pressure chambers.
1 more element
An ink-jet head comprising:
- a passage unit including a plurality of pressure chambers each having one end coupled to a nozzle and the other end to be coupled to an ink supply source, the plurality of pressure chambers being arranged along a plane adjacent to each other;
- and
- a plurality of actuator units attached to a surface of the passage unit for changing the volume of each of the pressure chambers,
- the actuator unit including:
- a common electrode kept at a constant potential;
- a plurality of individual electrodes arranged at positions corresponding to the respective pressure chambers, the individual electrodes being formed only on a face of the actuator unit facing the direction opposite to the fixed face thereof to the passage unit;
- and
- a piezoelectric sheet sandwiched between the common electrode and the individual electrodes.
5 more elements
Dependencies are inferred from the claim text.