JP6949516B2 - インクジェット印字ヘッド内の単一噴射再循環 - Google Patents
インクジェット印字ヘッド内の単一噴射再循環 Download PDFInfo
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- JP6949516B2 JP6949516B2 JP2017052618A JP2017052618A JP6949516B2 JP 6949516 B2 JP6949516 B2 JP 6949516B2 JP 2017052618 A JP2017052618 A JP 2017052618A JP 2017052618 A JP2017052618 A JP 2017052618A JP 6949516 B2 JP6949516 B2 JP 6949516B2
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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
- B41J2/02—Ink jet characterised by the jet generation process generating a continuous ink jet
- B41J2/03—Ink jet characterised by the jet generation process generating a continuous ink jet by pressure
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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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2/00—Processes or devices for granulating materials, e.g. fertilisers in general; Rendering particulate materials free flowing in general, e.g. making them hydrophobic
- B01J2/18—Processes or devices for granulating materials, e.g. fertilisers in general; Rendering particulate materials free flowing in general, e.g. making them hydrophobic using a vibrating apparatus
-
- 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
- B41J2/165—Preventing or detecting of nozzle clogging, e.g. cleaning, capping or moistening for nozzles
-
- 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
- B41J2/165—Preventing or detecting of nozzle clogging, e.g. cleaning, capping or moistening for nozzles
- B41J2/16517—Cleaning of print head nozzles
-
- 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
- B41J2/17593—Supplying ink in a solid state
-
- 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
- B41J2/18—Ink recirculation systems
-
- 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
- B41J2/19—Ink jet characterised by ink handling for removing air bubbles
-
- 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
- B41J2002/14403—Structure thereof only for on-demand ink jet heads including a filter
-
- 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
- B41J2/165—Preventing or detecting of nozzle clogging, e.g. cleaning, capping or moistening for nozzles
- B41J2/16517—Cleaning of print head nozzles
- B41J2002/16564—Heating means therefor, e.g. for hot melt inks
-
- 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
- B41J2202/07—Embodiments of or processes related to ink-jet heads dealing with air bubbles
-
- 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
- B41J2202/08—Embodiments of or processes related to ink-jet heads dealing with thermal variations, e.g. cooling
-
- 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
Description
Claims (10)
- インクジェット印字ヘッドであって、
複数の単一噴射要素であって、各単一噴射要素が、
噴射中インクを吐出するよう構成される開口と、
インクを受け取るためのチャネルと、を含む複数の単一噴射要素と、
前記チャネルに接続する第1の多岐管構造体と、
インクを受け取るために前記チャネルに接続する複数の再循環チャネルであって、前記単一噴射要素と再循環経路それぞれの一部を形成する鋼材プレートのうちの1つにハーフエッチングを施すことにより形成される再循環チャネルと、
前記再循環チャネルに接続する第2の多岐管構造体と、を含み、
前記噴射前の所定の時間の間に、前記第1の多岐管には負の圧力がかけられ、前記第2の多岐管には低い負の圧力がかけられ、
気泡を前記再循環チャネルに押し出すときの前記再循環チャネルの入口での圧力差を、Tを前記インクの表面張力とし、wを前記再循環チャネルの幅とし、dを前記再循環チャネルの深さとするとき、T×[(2/w)+(2/d)]で算出される値以上にする、インクジェット印字ヘッド。 - 前記所定の時間が経過した後、前記噴射により前記開口からインクが吐出される、請求項1に記載の印字ヘッド。
- 前記再循環チャネルが、1.65mm〜4.445mmの全長、0.076mm〜0.152mmの幅、および0.0381mm〜0.1016mmの深さを有する、請求項1に記載の印字ヘッド。
- 前記インクの表面張力が、27ダイン/cmで、前記再循環チャネルの入口の前記圧力が3.6〜8.5水柱インチである、請求項3に記載の印字ヘッド。
- インクジェット印字ヘッドであって、
噴射要素であって、
噴射中インクを吐出するよう構成される開口と、
インクを受け取るためのチャネルと、を含む噴射要素と、
前記チャネルにインクを供給する構造を有する第1の多岐管と、
前記噴射中かつ非噴射中にインクを受け取るよう構成される再循環経路であって、各再循環経路が、
インクを受け取るために前記チャネルに接続する再循環チャネルであって、単一噴射要素と前記再循環経路のそれぞれの一部を形成する鋼材プレートのうちの1つにハーフエッチングを施すことにより形成される再循環チャネルと、
前記再循環チャネルに接続する第2の多岐管構造体と、を含む、再循環経路と、を含み、
非噴射中に前記噴射要素と前記再循環経路を通って、前記第1の多岐管から前記第2の多岐管に前記インクが流れ、
気泡を前記再循環チャネルに押し出すときの前記再循環チャネルの入口での圧力差を、Tを前記インクの表面張力とし、wを前記再循環チャネルの幅とし、dを前記再循環チャネルの深さとするとき、T×[(2/w)+(2/d)]で算出される値以上にする、インクジェット印字ヘッド。 - 非噴射中に前記インクジェット印字ヘッド内を前記インクが絶えず流れる、請求項5に記載の印字ヘッド。
- 前記第1の多岐管には負の圧力がかけられ、前記第2の多岐管には低い負の圧力がかけられ、これにより、前記第1の多岐管と前記第2の多岐管の間に圧力差が生じる、請求項5に記載の印字ヘッド。
- 前記第1の多岐管と前記第2の多岐管の間の前記圧力差が噴射中に維持される、請求項7に記載の印字ヘッド。
- 印字ヘッド内の圧力を制御する方法であって、
所望の温度にインクを加熱するステップと、
前記インクが所望の温度に加熱されてから所定の時間後に、チャネルに接続する第1の多岐管に負の圧力をかけ、再循環チャネルに接続する第2の多岐管に低い負の圧力をかけるステップと、
前記所定の時間が経過した後、開口を通してインクを吐出するステップと、を含み、
気泡を前記再循環チャネルに押し出すときの前記再循環チャネルの入口での圧力差を、Tを前記インクの表面張力とし、wを前記再循環チャネルの幅とし、dを前記再循環チャネルの深さとするとき、T×[(2/w)+(2/d)]で算出される値以上にする、方法。 - 前記インクの表面張力が27ダイン/cmで、前記第2の多岐管の前記圧力が3.6〜8.5水柱インチである、請求項9に記載の方法。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US15/086,536 US20170282544A1 (en) | 2016-03-31 | 2016-03-31 | Single jet recirculation in an inkjet print head |
US15/086,536 | 2016-03-31 |
Publications (2)
Publication Number | Publication Date |
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JP2017185791A JP2017185791A (ja) | 2017-10-12 |
JP6949516B2 true JP6949516B2 (ja) | 2021-10-13 |
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Application Number | Title | Priority Date | Filing Date |
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JP2017052618A Active JP6949516B2 (ja) | 2016-03-31 | 2017-03-17 | インクジェット印字ヘッド内の単一噴射再循環 |
Country Status (4)
Country | Link |
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US (2) | US20170282544A1 (ja) |
JP (1) | JP6949516B2 (ja) |
KR (1) | KR20170113144A (ja) |
CN (1) | CN107264030B (ja) |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
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US9694582B1 (en) * | 2016-04-04 | 2017-07-04 | Xerox Corporation | Single jet recirculation in an inkjet print head |
CN114889328B (zh) | 2017-03-29 | 2024-04-19 | 京瓷株式会社 | 液体喷出头、及使用其的记录装置以及记录方法 |
JP7107041B2 (ja) * | 2018-07-10 | 2022-07-27 | セイコーエプソン株式会社 | 液滴吐出装置及び液滴吐出装置のメンテナンス方法 |
JP7087831B2 (ja) * | 2018-08-28 | 2022-06-21 | セイコーエプソン株式会社 | 液体噴射ヘッド、液体噴射装置、液体噴射ヘッドの洗浄方法、及び、液体噴射ヘッドの製造方法 |
JP7255297B2 (ja) * | 2019-04-01 | 2023-04-11 | ブラザー工業株式会社 | 液体吐出ヘッド |
JP7298247B2 (ja) * | 2019-04-01 | 2023-06-27 | ブラザー工業株式会社 | 液体吐出装置 |
JP7230646B2 (ja) * | 2019-04-01 | 2023-03-01 | ブラザー工業株式会社 | 液体吐出装置、及びこれを備える画像記録装置 |
JP7419677B2 (ja) * | 2019-06-05 | 2024-01-23 | ブラザー工業株式会社 | 液体吐出ヘッド |
JP2021079615A (ja) | 2019-11-19 | 2021-05-27 | ブラザー工業株式会社 | 液体吐出ヘッド |
EP4228901A1 (en) * | 2020-10-13 | 2023-08-23 | Hewlett-Packard Development Company, L.P. | Print fluid recirculation |
US11801677B2 (en) | 2022-02-10 | 2023-10-31 | Ricoh Company, Ltd. | Printhead design with multiple fluid paths to jetting channels |
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JP2961395B2 (ja) * | 1992-12-18 | 1999-10-12 | キヤノン株式会社 | インク貯蔵タンク、該インク貯蔵タンクを備えたインクジェットヘッドカートリッジおよび該インクジェットヘッドカートリッジを備えたインクジェット記録装置 |
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JP2015131475A (ja) * | 2014-01-16 | 2015-07-23 | パナソニック株式会社 | インクジェット装置 |
CN106061745B (zh) * | 2014-02-24 | 2017-11-03 | 柯尼卡美能达株式会社 | 喷墨记录装置 |
US9272514B2 (en) * | 2014-04-24 | 2016-03-01 | Ricoh Company, Ltd. | Inkjet head that circulates ink |
WO2016031871A1 (ja) * | 2014-08-29 | 2016-03-03 | 京セラ株式会社 | 液体吐出ヘッド、およびそれを用いた記録装置 |
-
2016
- 2016-03-31 US US15/086,536 patent/US20170282544A1/en not_active Abandoned
-
2017
- 2017-03-17 JP JP2017052618A patent/JP6949516B2/ja active Active
- 2017-03-20 KR KR1020170034356A patent/KR20170113144A/ko not_active IP Right Cessation
- 2017-03-22 CN CN201710172303.5A patent/CN107264030B/zh not_active Expired - Fee Related
- 2017-10-23 US US15/790,548 patent/US10118390B2/en active Active
Also Published As
Publication number | Publication date |
---|---|
KR20170113144A (ko) | 2017-10-12 |
CN107264030A (zh) | 2017-10-20 |
US20180056647A1 (en) | 2018-03-01 |
US20170282544A1 (en) | 2017-10-05 |
CN107264030B (zh) | 2020-03-27 |
JP2017185791A (ja) | 2017-10-12 |
US10118390B2 (en) | 2018-11-06 |
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