JP2021000787A - 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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- 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
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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
-
- 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
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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
- B41J2002/14475—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
- B41J2202/11—Embodiments of or processes related to ink-jet heads characterised by specific geometrical characteristics
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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
- 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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Abstract
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、図3のB−B′線断面図である。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。
また、流路形成基板10の−Z方向の面には、保護基板30が接合されている。
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 (14)
- 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、
前記供給口と前記排出口との間で第1軸方向に延伸する第1流路と、
前記第1流路から分岐して設けられるノズルであって、前記第1軸方向と直交する第2軸方向に沿って液体を噴射するノズルと、を備え、
前記第1流路には、前記ノズルの前記第1流路側の開口と向かい合って凸部が設けられていることを特徴とする液体噴射ヘッド。 - 前記凸部の前記第1軸方向の長さ寸法は、前記開口の前記第1軸方向の長さ寸法の2倍以下であることを特徴とする請求項1記載の液体噴射ヘッド。
- 前記凸部の前記第1軸方向の長さ寸法は、前記開口の前記第1軸方向の長さ寸法の1倍以下であることを特徴とする請求項2記載の液体噴射ヘッド。
- 前記凸部の前記第1軸方向及び前記第2軸方向に直交する第3軸方向の幅寸法は、前記開口の前記第3軸方向の幅寸法の1/2倍以上である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。
- 前記凸部は、前記第1流路に前記第3軸方向に亘って連続して設けられていることを特徴とする請求項4記載の液体噴射ヘッド。
- 前記凸部は、前記第1軸方向に対して傾いた側面を有す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。
- 前記第2軸方向に見て、前記側面は、前記開口の縁と重なることを特徴とする請求項6記載の液体噴射ヘッド。
- 前記凸部の前記第2軸方向の高さ寸法は、前記第1流路の前記第2軸方向の高さ寸法の1/3倍以上であることを特徴とする請求項1〜7の何れか一項に記載の液体噴射ヘッド。
- 前記凸部の前記第2軸方向の高さ寸法は、前記第1流路の前記第2軸方向の高さ寸法の1/2倍以上であることを特徴とする請求項8記載の液体噴射ヘッド。
- 前記凸部の前記第2軸方向の高さ寸法は、前記第1流路の前記第2軸方向の高さ寸法の1倍以下であることを特徴とする請求項8又は9に記載の液体噴射ヘッド。
- 前記凸部の前記第2軸方向の高さ寸法は、前記第1流路の前記第2軸方向の高さ寸法の2/3倍以下であることを特徴とする請求項10記載の液体噴射ヘッド。
- 前記第2軸方向に見たとき、前記凸部の前記第1軸方向に占める範囲は、前記開口の中心に対して略対称であることを特徴とする請求項1〜11の何れか一項に記載の液体噴射ヘッド。
- 前記開口の径をrとしたとき、前記第1流路は当該開口の中心から前記第1軸方向の両側に向かってそれぞれ2r以上の長さの範囲に亘って延伸していることを特徴とする請求項1〜12の何れか一項に記載の液体噴射ヘッド。
- 請求項1〜13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 (2)
Application Number | Priority Date | Filing Date | Title |
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JP2019116206A JP2021000787A (ja) | 2019-06-24 | 2019-06-24 | 液体噴射ヘッド及び液体噴射システム |
US16/907,947 US20200398570A1 (en) | 2019-06-24 | 2020-06-22 | Liquid ejecting head and liquid ejecting system |
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JP2019116206A JP2021000787A (ja) | 2019-06-24 | 2019-06-24 | 液体噴射ヘッド及び液体噴射システム |
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JP2019116206A Withdrawn JP2021000787A (ja) | 2019-06-24 | 2019-06-24 | 液体噴射ヘッド及び液体噴射システム |
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JP (1) | JP2021000787A (ja) |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2014531350A (ja) * | 2011-10-03 | 2014-11-27 | オセ−テクノロジーズ ビーブイ | 液滴吐出装置 |
JP2017074759A (ja) * | 2015-10-16 | 2017-04-20 | エスアイアイ・プリンテック株式会社 | 液体噴射ヘッド、及び液体噴射装置 |
JP2019177587A (ja) * | 2018-03-30 | 2019-10-17 | ブラザー工業株式会社 | 液体吐出装置 |
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2019
- 2019-06-24 JP JP2019116206A patent/JP2021000787A/ja not_active Withdrawn
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2020
- 2020-06-22 US US16/907,947 patent/US20200398570A1/en not_active Abandoned
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2014531350A (ja) * | 2011-10-03 | 2014-11-27 | オセ−テクノロジーズ ビーブイ | 液滴吐出装置 |
JP2017074759A (ja) * | 2015-10-16 | 2017-04-20 | エスアイアイ・プリンテック株式会社 | 液体噴射ヘッド、及び液体噴射装置 |
JP2019177587A (ja) * | 2018-03-30 | 2019-10-17 | ブラザー工業株式会社 | 液体吐出装置 |
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US20200398570A1 (en) | 2020-12-24 |
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