JP7310381B2 - 液体噴射ヘッド及び液体噴射システム - Google Patents
液体噴射ヘッド及び液体噴射システム Download PDFInfo
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- JP7310381B2 JP7310381B2 JP2019128232A JP2019128232A JP7310381B2 JP 7310381 B2 JP7310381 B2 JP 7310381B2 JP 2019128232 A JP2019128232 A JP 2019128232A JP 2019128232 A JP2019128232 A JP 2019128232A JP 7310381 B2 JP7310381 B2 JP 7310381B2
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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
- B41J2/1433—Structure of nozzle plates
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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
- B41J2/17—Ink jet characterised by ink handling
- B41J2/175—Ink supply systems ; Circuit parts therefor
- B41J2/17503—Ink cartridges
- B41J2/17506—Refilling of the cartridge
- B41J2/17509—Whilst mounted in the printer
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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
- B41J2/015—Ink jet characterised by the jet generation process
- B41J2/04—Ink jet characterised by the jet generation process generating single droplets or particles on demand
- B41J2/045—Ink jet characterised by the jet generation process generating single droplets or particles on demand by pressure, e.g. electromechanical transducers
- B41J2/04501—Control methods or devices therefor, e.g. driver circuits, control circuits
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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
-
- 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
- B41J2/14233—Structure of print heads with piezoelectric elements of film type, deformed by bending and disposed on a diaphragm
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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
- B41J2/17—Ink jet characterised by ink handling
- B41J2/175—Ink supply systems ; Circuit parts therefor
-
- 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
- B41J2/14233—Structure of print heads with piezoelectric elements of film type, deformed by bending and disposed on a diaphragm
- B41J2002/14241—Structure of print heads with piezoelectric elements of film type, deformed by bending and disposed on a diaphragm having a cover around the piezoelectric thin film 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
- B41J2002/14419—Manifold
-
- 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
- B41J2002/14475—Structure thereof only for on-demand ink jet heads characterised by nozzle shapes or number of orifices per chamber
-
- 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
- B41J2202/12—Embodiments of or processes related to ink-jet heads with ink circulating through the whole print head
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- Particle Formation And Scattering Control In Inkjet Printers (AREA)
- Ink Jet (AREA)
Description
本実施形態の液体噴射ヘッドの一例であるインクジェット式記録ヘッドについて図1~図6を参照して説明する。なお、図1は、本発明の実施形態1に係る液体噴射ヘッドの一例であるインクジェット式記録ヘッドのノズル面側から見た平面図である。図2は、図1のA-A′線断面図である。図3は、図2の要部を拡大した図である。図4は、第1流路及び第2流路を説明する断面図である。図5は、図3の流路内の流線を説明する図である。図6は、比較例の流路内の流線を説明する図である。
このように、ノズル21の開口211の+Y方向の位置211bを、下流側第1流路201aの+Y側の位置201a2よりも-Y方向寄りとすることで、ノズル21の開口211が第2連通板152によって覆われるのを抑制することができる。
図7は、本発明の実施形態2に係る液体噴射ヘッドの一例であるインクジェット式記録ヘッドの要部を拡大した断面図である。なお、上述した実施形態と同様の部材には同一の符号を付して重複する説明は省略する。
図8は、本発明の実施形態3に係る液体噴射ヘッドの一例であるインクジェット式記録ヘッドの要部を拡大した断面図である。なお、上述した実施形態と同様の部材には同一の符号を付して重複する説明は省略する。
第1連通板151は、第2連通板152の-Z側に配置されている。
また、第3連通板153は、第1連通板151の-Z側に配置されている。すなわち、-Z側から+Z側に向かって第3連通板153、第1連通板151、第2連通板152の順に積層されている。
すなわち、-Z方向から+Z方向に向かって順に設けられた接続用第1流路201f、上流側第1流路201b、下流側第1流路201aは、中心軸が徐々に+Y方向寄りとなるように、いわゆる階段状に設けられている。
以上、本発明の各実施形態について説明したが、本発明の基本的な構成は上述したものに限定されるものではない。
Claims (8)
- 液体の供給口と排出口とを有する液体噴射ヘッドであって、
前記供給口及び前記排出口の一方と連通する加圧チャンバーと、
前記加圧チャンバーで加圧された液体を吐出するノズルと、
前記加圧チャンバーと前記ノズルとの間において、第1方向に向かって延伸する第1流路と、
前記供給口及び前記排出口の他方と連通し、前記第1流路から分岐して前記第1方向に交差する第2方向に向かって延伸する第2流路と、を備え、
前記第1流路は、前記ノズルに近い下流側第1流路と、前記下流側第1流路よりも前記加圧チャンバー寄りの上流側第1流路と、を有し、
前記下流側第1流路の中心軸は、前記上流側第1流路の中心軸よりも前記第2方向の反対方向である第3方向寄りに位置し、且つ、前記ノズルの前記第1流路側の開口の中心軸よりも前記第3方向寄りに位置していることを特徴とする液体噴射ヘッド。 - 前記上流側第1流路の内側面における最も前記第2方向側の位置は、前記下流側第1流路の内側面における最も前記第2方向側の位置よりも、前記第2方向寄りとなっていることを特徴とする請求項1記載の液体噴射ヘッド。
- 前記上流側第1流路の内側面における最も前記第3方向側の位置は、前記下流側第1流路の内側面における最も前記第3方向側の位置よりも、前記第2方向寄りとなっていることを特徴とする請求項1又は2記載の液体噴射ヘッド。
- 前記上流側第1流路の径は、前記下流側第1流路の径よりも大きいことを特徴とする請求項1~3の何れか一項に記載の液体噴射ヘッド。
- 前記上流側第1流路は、第1の流路基板に形成され、
前記下流側第1流路は、前記第1の流路基板とは異なる第2の流路基板に形成され、
前記ノズルは、ノズル基板に形成されることを特徴とする請求項1~4の何れか一項に記載の液体噴射ヘッド。 - 前記ノズルの前記第1流路側の開口における最も前記第2方向側の位置は、前記下流側第1流路の内側面における最も前記第2方向側の位置よりも前記第2方向寄りとなっていることを特徴とする請求項1~5の何れか一項に記載の液体噴射ヘッド。
- 前記ノズルの前記第1流路側の開口における最も前記第3方向側の位置は、前記下流側第1流路の内側面における最も前記第3方向側の位置よりも前記第2方向寄りとなっていることを特徴とする請求項1~5の何れか一項に記載の液体噴射ヘッド。
- 請求項1~7の何れか一項に記載の液体噴射ヘッドと、前記供給口に液体を供給すると共に前記排出口から液体を回収して液体を循環させる機構と、を備えることを特徴とする液体噴射システム。
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
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JP2019128232A JP7310381B2 (ja) | 2019-07-10 | 2019-07-10 | 液体噴射ヘッド及び液体噴射システム |
CN202010644991.2A CN112208210B (zh) | 2019-07-10 | 2020-07-07 | 液体喷射头以及液体喷射系统 |
US16/924,607 US11104134B2 (en) | 2019-07-10 | 2020-07-09 | Liquid ejecting head and liquid ejecting system |
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JP2019128232A JP7310381B2 (ja) | 2019-07-10 | 2019-07-10 | 液体噴射ヘッド及び液体噴射システム |
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JP2021014021A JP2021014021A (ja) | 2021-02-12 |
JP7310381B2 true JP7310381B2 (ja) | 2023-07-19 |
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US (1) | US11104134B2 (ja) |
JP (1) | JP7310381B2 (ja) |
CN (1) | CN112208210B (ja) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
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JP7380096B2 (ja) | 2019-11-06 | 2023-11-15 | ブラザー工業株式会社 | 液体吐出ヘッド |
JP7467917B2 (ja) | 2020-01-06 | 2024-04-16 | ブラザー工業株式会社 | 液体吐出ヘッド |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2006088390A (ja) | 2004-09-21 | 2006-04-06 | Fuji Xerox Co Ltd | インクジェット記録ヘッド |
US20120055021A1 (en) | 2010-09-08 | 2012-03-08 | Microject Technology Co., Ltd. | Inkjet head manufacturing method |
JP2019098553A (ja) | 2017-11-29 | 2019-06-24 | 株式会社リコー | 液体吐出ヘッド、液体吐出ユニット、液体を吐出する装置 |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
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JP2007118309A (ja) * | 2005-10-26 | 2007-05-17 | Fujifilm Corp | インクジェット記録ヘッド及びこれを備えた画像形成装置 |
JP4875997B2 (ja) * | 2007-02-16 | 2012-02-15 | 富士フイルム株式会社 | 液体吐出ヘッドおよび液体吐出装置 |
JP5058719B2 (ja) * | 2007-08-30 | 2012-10-24 | キヤノン株式会社 | 液体吐出ヘッド及びインクジェット記録装置 |
JP5454016B2 (ja) * | 2009-08-31 | 2014-03-26 | コニカミノルタ株式会社 | インクジェットヘッド |
JP2015033838A (ja) * | 2013-08-09 | 2015-02-19 | セイコーエプソン株式会社 | 液体噴射ヘッド及び液体噴射装置 |
US10144220B2 (en) * | 2014-12-22 | 2018-12-04 | Seiko Epson Corporation | Liquid ejecting head |
JP6859697B2 (ja) * | 2016-12-21 | 2021-04-14 | セイコーエプソン株式会社 | 液体吐出装置 |
JP6950194B2 (ja) * | 2016-12-22 | 2021-10-13 | セイコーエプソン株式会社 | 液体噴射ヘッドおよび液体噴射装置 |
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2019
- 2019-07-10 JP JP2019128232A patent/JP7310381B2/ja active Active
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2020
- 2020-07-07 CN CN202010644991.2A patent/CN112208210B/zh active Active
- 2020-07-09 US US16/924,607 patent/US11104134B2/en active Active
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2006088390A (ja) | 2004-09-21 | 2006-04-06 | Fuji Xerox Co Ltd | インクジェット記録ヘッド |
US20120055021A1 (en) | 2010-09-08 | 2012-03-08 | Microject Technology Co., Ltd. | Inkjet head manufacturing method |
JP2019098553A (ja) | 2017-11-29 | 2019-06-24 | 株式会社リコー | 液体吐出ヘッド、液体吐出ユニット、液体を吐出する装置 |
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Publication number | Publication date |
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CN112208210B (zh) | 2023-01-10 |
JP2021014021A (ja) | 2021-02-12 |
US20210008881A1 (en) | 2021-01-14 |
CN112208210A (zh) | 2021-01-12 |
US11104134B2 (en) | 2021-08-31 |
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