JP4407725B2 - 液体吐出ヘッド - Google Patents
液体吐出ヘッド Download PDFInfo
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- JP4407725B2 JP4407725B2 JP2007171356A JP2007171356A JP4407725B2 JP 4407725 B2 JP4407725 B2 JP 4407725B2 JP 2007171356 A JP2007171356 A JP 2007171356A JP 2007171356 A JP2007171356 A JP 2007171356A JP 4407725 B2 JP4407725 B2 JP 4407725B2
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Images
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
- B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
- B41J2/01—Ink jet
- B41J2/135—Nozzles
- B41J2/14—Structure thereof only for on-demand ink jet heads
- B41J2/14201—Structure of print heads with piezoelectric elements
- B41J2/14209—Structure of print heads with piezoelectric elements of finger type, chamber walls consisting integrally of piezoelectric material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
- B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
- B41J2/01—Ink jet
- B41J2/135—Nozzles
- B41J2/16—Production of nozzles
- B41J2/1607—Production of print heads with piezoelectric elements
- B41J2/1609—Production of print heads with piezoelectric elements of finger type, chamber walls consisting integrally of piezoelectric material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
- B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
- B41J2/01—Ink jet
- B41J2/135—Nozzles
- B41J2/16—Production of nozzles
- B41J2/1621—Manufacturing processes
- B41J2/1623—Manufacturing processes bonding and adhesion
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
- B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
- B41J2/01—Ink jet
- B41J2/135—Nozzles
- B41J2/16—Production of nozzles
- B41J2/1621—Manufacturing processes
- B41J2/1626—Manufacturing processes etching
- B41J2/1629—Manufacturing processes etching wet etching
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
- B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
- B41J2/01—Ink jet
- B41J2/135—Nozzles
- B41J2/16—Production of nozzles
- B41J2/1621—Manufacturing processes
- B41J2/1631—Manufacturing processes photolithography
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
- B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
- B41J2/01—Ink jet
- B41J2/135—Nozzles
- B41J2/16—Production of nozzles
- B41J2/1621—Manufacturing processes
- B41J2/164—Manufacturing processes thin film formation
- B41J2/1646—Manufacturing processes thin film formation thin film formation by sputtering
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
- B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
- B41J2/01—Ink jet
- B41J2/135—Nozzles
- B41J2/14—Structure thereof only for on-demand ink jet heads
- B41J2/14201—Structure of print heads with piezoelectric elements
- B41J2/14209—Structure of print heads with piezoelectric elements of finger type, chamber walls consisting integrally of piezoelectric material
- B41J2002/14217—Multi layer finger type piezoelectric element
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
- B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
- B41J2/01—Ink jet
- B41J2/135—Nozzles
- B41J2/14—Structure thereof only for on-demand ink jet heads
- B41J2/14201—Structure of print heads with piezoelectric elements
- B41J2/14209—Structure of print heads with piezoelectric elements of finger type, chamber walls consisting integrally of piezoelectric material
- B41J2002/14225—Finger type piezoelectric element on only one side of the chamber
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
- B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
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- B41J2/135—Nozzles
- B41J2/14—Structure thereof only for on-demand ink jet heads
- B41J2/14201—Structure of print heads with piezoelectric elements
- B41J2002/14306—Flow passage between manifold and chamber
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
- B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
- B41J2/01—Ink jet
- B41J2/135—Nozzles
- B41J2/14—Structure thereof only for on-demand ink jet heads
- B41J2002/14459—Matrix arrangement of the pressure chambers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
- B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
- B41J2/01—Ink jet
- B41J2/135—Nozzles
- B41J2/14—Structure thereof only for on-demand ink jet heads
- B41J2002/14491—Electrical connection
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J2202/00—Embodiments of or processes related to ink-jet or thermal heads
- B41J2202/01—Embodiments of or processes related to ink-jet heads
- B41J2202/20—Modules
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Particle Formation And Scattering Control In Inkjet Printers (AREA)
Description
4 流路ユニット
8 ノズル(液体吐出口)
10 圧力室
20,220 アクチュエータユニット
31 個別インク流路(液体流路)
32,232 空孔
33,233 電界遮断層
34 共通電極
35 個別電極
35a 主電極部
35b 外側電極部
36 ランド
37 領域(第2領域)
38 領域(第1領域)
41 圧電シート(圧電層)
42,43 圧電シート(振動板)
85 個別電極列(電極列)
231 樹脂チップ
Claims (5)
- 液体吐出口に連通した複数の圧力室が表面に沿ってマトリクス状に互いに隣接配置された流路ユニットと、前記流路ユニットの前記表面に固定されて、前記圧力室の容積を変化させるアクチュエータユニットとを備え、
前記アクチュエータユニットは、
前記複数の圧力室を覆う振動板上に、前記複数の圧力室に跨って設けられた共通電極、前記複数の圧力室に跨って設けられ且つ外部電界の印加によって伸縮変形する圧電層及び前記複数の圧力室にそれぞれ対向して配置された複数の個別電極がこの順に積層されてなり、
前記圧電層は、積層方向に分極されており、前記積層方向に沿った外部電界が印加されることで前記積層方向と直交する方向に伸縮変形して前記圧力室の容積を変化させ、
前記個別電極は、前記圧電層の上面において、共に前記共通電極と対向する、前記圧力室と対向する主電極部、及び、前記圧力室の外側領域と対向する外側電極部を有しており、
前記圧電層の上面には、前記圧電層より誘電率の小さい複数の電界遮断層が、前記圧力室の外側領域及び前記共通電極と前記積層方向に対向するとともに、前記外側電極部と電気的に接続し且つ駆動信号が供給される複数のランドと前記圧電層との間に各々挟まれて配置されており、
前記複数の個別電極は、互いに平行で一方向にそれぞれ延びる複数の電極列を構成し、前記主電極部の角部が隣接する前記電極列に属する2つの個別電極に挟まれて配置され、
前記外側電極部及び前記ランドが、隣接する前記電極列に属する2つの個別電極に挟まれ且つ前記一方向と交差する方向から前記主電極部の角部と接続されるように配置され、
前記電界遮断層は、前記圧電層の上面において、前記ランドと対向する領域を覆うとともに、少なくとも前記ランドと隣接する個別電極との離隔距離が最短となる方向に前記ランドと対向する領域から前記隣接する個別電極に向かって広がる拡域部を有し、層中に複数の空孔を有するポーラス層であることを特徴とする液体吐出ヘッド。 - 前記個別電極が、前記圧力室と対向する領域から前記電界遮断層の表面に亘って形成されており、
前記電界遮断層が、前記個別電極の前記圧力室の外側領域と対向する部分全体と対向していることを特徴とする請求項1に記載の液体吐出ヘッド。 - 前記ランドが、前記電界遮断層とで前記外側電極部を挟んでいることを特徴とする請求項2に記載の液体吐出ヘッド。
- 前記電界遮断層が、前記個別電極の前記圧力室の外側領域と対向する部分よりも外側に広がっていることを特徴とする請求項3に記載の液体吐出ヘッド。
- 前記電界遮断層を形成する基材が、誘電率が前記圧電層よりも小さい材料からなることを特徴とする請求項1〜4のいずれか1項に記載の液体吐出ヘッド。
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2007171356A JP4407725B2 (ja) | 2007-06-29 | 2007-06-29 | 液体吐出ヘッド |
US12/165,386 US7802876B2 (en) | 2007-06-29 | 2008-06-30 | Actuator unit and manufacturing method thereof, and liquid ejection head |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2007171356A JP4407725B2 (ja) | 2007-06-29 | 2007-06-29 | 液体吐出ヘッド |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2009006616A JP2009006616A (ja) | 2009-01-15 |
JP4407725B2 true JP4407725B2 (ja) | 2010-02-03 |
Family
ID=40159883
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2007171356A Expired - Fee Related JP4407725B2 (ja) | 2007-06-29 | 2007-06-29 | 液体吐出ヘッド |
Country Status (2)
Country | Link |
---|---|
US (1) | US7802876B2 (ja) |
JP (1) | JP4407725B2 (ja) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP5233937B2 (ja) * | 2009-09-29 | 2013-07-10 | ブラザー工業株式会社 | 液体吐出ヘッドの製造方法及び液体吐出ヘッド |
JP5126208B2 (ja) * | 2009-11-30 | 2013-01-23 | ブラザー工業株式会社 | 圧電アクチュエータ、液体吐出ヘッド、圧電アクチュエータの製造方法、及び液体吐出ヘッドの製造方法 |
JP5434932B2 (ja) | 2010-08-23 | 2014-03-05 | ブラザー工業株式会社 | 液体吐出ヘッド及びその製造方法 |
US8593016B2 (en) * | 2010-12-03 | 2013-11-26 | Sri International | Levitated micro-manipulator system |
JP5762046B2 (ja) * | 2010-12-28 | 2015-08-12 | 京セラ株式会社 | 圧電アクチュエータユニット、およびそれを用いた液体吐出ヘッド、ならびに記録装置 |
JP5803528B2 (ja) * | 2011-09-30 | 2015-11-04 | ブラザー工業株式会社 | 圧電アクチュエータ、液体移送装置及び圧電アクチュエータの製造方法 |
JP5803529B2 (ja) * | 2011-09-30 | 2015-11-04 | ブラザー工業株式会社 | 圧電アクチュエータ、液体噴射装置、圧電アクチュエータの製造方法及び液体噴射装置の製造方法 |
JP6191983B2 (ja) * | 2013-06-11 | 2017-09-06 | ブラザー工業株式会社 | 圧電アクチュエータの製造方法、圧電アクチュエータ、及び、液体吐出装置 |
WO2016172217A1 (en) | 2015-04-20 | 2016-10-27 | Sri International | Microrobot and microrobotic train self-assembly with end-effectors |
Family Cites Families (11)
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US5402159A (en) | 1990-03-26 | 1995-03-28 | Brother Kogyo Kabushiki Kaisha | Piezoelectric ink jet printer using laminated piezoelectric actuator |
JP3249545B2 (ja) | 1991-05-20 | 2002-01-21 | ブラザー工業株式会社 | 圧電式インクジェットプリンタヘッド |
JP2001038899A (ja) * | 1999-07-30 | 2001-02-13 | Matsushita Electric Ind Co Ltd | インクジェットヘッド及びその製造方法並びにインクジェット式プリンタ |
JP3389987B2 (ja) * | 1999-11-11 | 2003-03-24 | セイコーエプソン株式会社 | インクジェット式記録ヘッド及びその製造方法 |
US6715862B2 (en) * | 2000-10-26 | 2004-04-06 | Brother Kogyo Kabushiki Kaisha | Piezoelectric ink jet print head and method of making the same |
US7083270B2 (en) * | 2002-06-20 | 2006-08-01 | Matsushita Electric Industrial Co., Ltd. | Piezoelectric element, ink jet head, angular velocity sensor, method for manufacturing the same, and ink jet recording apparatus |
JP4276862B2 (ja) * | 2003-02-27 | 2009-06-10 | 京セラ株式会社 | 圧電アクチュエータおよびインクジェット記録ヘッド |
JP4138592B2 (ja) * | 2003-06-30 | 2008-08-27 | ブラザー工業株式会社 | インクジェットヘッドおよび印刷装置 |
JP3876854B2 (ja) * | 2003-06-30 | 2007-02-07 | ブラザー工業株式会社 | インクジェットヘッド |
JP4370920B2 (ja) * | 2004-01-19 | 2009-11-25 | セイコーエプソン株式会社 | 描画装置 |
JP4595418B2 (ja) * | 2004-07-16 | 2010-12-08 | ブラザー工業株式会社 | インクジェットヘッド |
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2007
- 2007-06-29 JP JP2007171356A patent/JP4407725B2/ja not_active Expired - Fee Related
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