JP2018154072A - 液体吐出ヘッド、液体吐出ユニット、液体を吐出する装置 - Google Patents
液体吐出ヘッド、液体吐出ユニット、液体を吐出する装置 Download PDFInfo
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- JP2018154072A JP2018154072A JP2017054104A JP2017054104A JP2018154072A JP 2018154072 A JP2018154072 A JP 2018154072A JP 2017054104 A JP2017054104 A JP 2017054104A JP 2017054104 A JP2017054104 A JP 2017054104A JP 2018154072 A JP2018154072 A JP 2018154072A
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Classifications
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- 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
- B41J2/17563—Ink filters
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
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- 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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- B41J2/14—Structure thereof only for on-demand ink jet heads
- B41J2/14201—Structure of print heads with piezoelectric elements
- B41J2/14274—Structure of print heads with piezoelectric elements of stacked structure type, deformed by compression/extension and disposed on a diaphragm
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- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, e.g. INK-JET PRINTERS, THERMAL PRINTERS, 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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- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, e.g. INK-JET PRINTERS, THERMAL PRINTERS, 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, e.g. INK-JET PRINTERS, THERMAL PRINTERS, 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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, e.g. INK-JET PRINTERS, THERMAL PRINTERS, 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, e.g. INK-JET PRINTERS, THERMAL PRINTERS, 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, e.g. INK-JET PRINTERS, THERMAL PRINTERS, 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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, e.g. INK-JET PRINTERS, THERMAL PRINTERS, 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
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- B41J2202/21—Line printing
Abstract
【解決手段】供給側流体抵抗部7は、板状部材2C、2B、2Aによって構成され、供給側流体抵抗部7を形成している板状部材2Cと供給側フィルタ9を形成している振動板部材3との間に板状部材2Dを配置することで、板状部材2Cと振動板部材3との間に隙間18を設け、供給側流体抵抗部7は供給側フィルタ9における液体透過方向に投影したとき、供給側流体抵抗部7の入口部分7aが供給側フィルタ9に重複する位置に配置される。
【選択図】図2
Description
液体を吐出する複数のノズルと、
前記ノズルに連通する個別液室と、
前記個別液室に通じる供給流路と、
前記供給流路の上流側に配置されたフィルタと、を備え、
前記供給流路は、前記フィルタにおける液体透過方向と交差する方向に前記液体が流れる流路であり、
前記供給流路は、前記フィルタにおける液体透過方向に投影したとき、前記供給流路の入口部分が前記フィルタに重複する位置に配置されている
構成とした。
する。
2 流路板
3 振動板
4 ノズル
5 ノズル連通路
6 個別液室
7 供給側流体抵抗部
8 供給側導入部
9 供給側フィルタ
10 供給側共通液室
11 圧電アクチュエータ
18 隙間
20 共通液室部材
50 排出側共通液室
57 排出側流体抵抗部
58 排出側導出部
59 排出側フィルタ
403 キャリッジ
404 液体吐出ヘッド
440 液体吐出ユニット
630 液体循環システム
1000 液体吐出ヘッド
Claims (10)
- 液体を吐出する複数のノズルと、
前記ノズルに連通する個別液室と、
前記個別液室に通じる供給流路と、
前記供給流路の上流側に配置されたフィルタと、を備え、
前記供給流路は、前記フィルタにおける液体透過方向と交差する方向に前記液体が流れる流路であり、
前記供給流路は、前記フィルタにおける液体透過方向に投影したとき、前記供給流路の入口部分が前記フィルタに重複する位置に配置されている
ことを特徴とする液体吐出ヘッド。 - 前記供給流路の入口部分の外壁面と前記フィルタとの間には隙間がある
ことを特徴とする請求項1に記載の液体吐出ヘッド。 - 前記供給流路を形成している第1板状部材と、
前記フィルタを形成している第2板状部材と、を備え、
前記第1板状部材と前記第2板状部材との間に前記隙間を形成する第3板状部材が介在している
ことを特徴とする請求項2に記載の液体吐出ヘッド。 - 前記供給流路の一部に、前記液体が流れる方向に直交する方向の断面積の小さな流体抵抗部を有する
ことを特徴とする請求項1ないし3のいずれかに記載の液体吐出ヘッド。 - 前記流体抵抗部は、前記フィルタにおける液体透過方向に投影したとき、前記流体抵抗の入口部分が前記フィルタに重複する位置に配置されている
ことを特徴とする請求項4に記載の液体吐出ヘッド。 - 前記個別液室に通じる排出流路を備えている
ことを特徴とする請求項1ないし5のいずれかに記載の液体吐出ヘッド。 - 液体を吐出する複数のノズルと、
前記ノズルに連通する個別液室と、
前記個別液室に連通する供給側流体抵抗部と、
前記個別液室に通じる排出側流体抵抗部と、
前記排出側流体抵抗部の下流側に配置された排出側フィルタと、を備え、
前記排出側流体抵抗部における液体の流れ方向は、前記フィルタにおける液体透過方向と交差する方向であり、
前記排出側流体抵抗部は、前記排出側フィルタにおける液体透過方向に投影したとき、前記排出側流体抵抗部の出口部分が前記排出側フィルタに重複する位置に配置されている
ことを特徴とする液体吐出ヘッド。 - 請求項1ないし7のいずれかに記載の液体吐出ヘッドを含むことを特徴とする液体吐出ユニット。
- 前記液体吐出ヘッドに供給する液体を貯留するヘッドタンク、前記液体吐出ヘッドを搭載するキャリッジ、前記液体吐出ヘッドに液体を供給する供給機構、前記液体吐出ヘッドの維持回復を行う維持回復機構、前記液体吐出ヘッドを主走査方向に移動させる主走査移動機構の少なくともいずれか一つと前記液体吐出ヘッドとを一体化した
ことを特徴とする請求項8に記載の液体吐出ユニット。 - 請求項1ないし7のいずれかに記載の液体吐出ヘッド、又は、請求項8若しくは9に記載の液体吐出ユニットを備えていることを特徴とする液体を吐出する装置
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