JPS59207263A - インク・ジエツト・ヘツド - Google Patents

インク・ジエツト・ヘツド

Info

Publication number
JPS59207263A
JPS59207263A JP59080022A JP8002284A JPS59207263A JP S59207263 A JPS59207263 A JP S59207263A JP 59080022 A JP59080022 A JP 59080022A JP 8002284 A JP8002284 A JP 8002284A JP S59207263 A JPS59207263 A JP S59207263A
Authority
JP
Japan
Prior art keywords
ink
ink jet
base plate
reservoir
substrate
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP59080022A
Other languages
English (en)
Inventor
Tei Batsuku Roi
ロイ・テイ・バツク
Eru Kurauteia Furanku
フランク・エル・クラウテイア
Erunsuto Eruni Aaru
ア−ル・エルンスト・エルニ
Enu Rou Robaato
ロバ−ト・エヌ・ロウ
Dankan Terii Efu
エフ・ダンカン・テリ−
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hewlett Packard Japan Inc
Original Assignee
Yokogawa Hewlett Packard Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Yokogawa Hewlett Packard Ltd filed Critical Yokogawa Hewlett Packard Ltd
Publication of JPS59207263A publication Critical patent/JPS59207263A/ja
Pending legal-status Critical Current

Links

Classifications

    • 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
    • B41J2/17526—Electrical contacts to the cartridge
    • 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
    • B41J2/14016—Structure of bubble jet print heads
    • B41J2/14024—Assembling head parts
    • 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
    • B41J2/17513—Inner structure
    • 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
    • B41J2002/0055—Heating elements adjacent to nozzle orifices of printhead for warming up ink meniscuses, e.g. for lowering the surface tension of the ink meniscuses
    • 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
    • B41J2002/14387—Front shooter

Landscapes

  • Particle Formation And Scattering Control In Inkjet Printers (AREA)
  • Ink Jet (AREA)

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。

Description

【発明の詳細な説明】 〔産業上の利用分野〕 本発明はインク・ジェット・−・ソ１に関し、特に使い
捨ての可能なインク・ジェット・ヘッドに関する。
〔従来技術及びその問題点〕
たとえば、１９７６年４月２７日発行の米国特許第３　
、９’５３．８６２号（アムヘルントソン他）、　１９
７７年５月２４日発行の米国特許第４，０２５，９２８
号（ボン他）。
■９８１年１２月１５日発行の米国特許第４．３０６．
２４５号（カスカシャマ他）により、印字用のインク・
ジェット装置が開示されて来た。そして、インク・ジェ
ット方式が印字及び描画（ｐｌｏｔｔｉＢ＞の多方面に
広く用いることができることは周知のことである。しか
しながら不都合なことには従来のインク・ジェットプリ
ンタ及びその主要部品であるインク・ジエ、［・・ヘッ
ドは高価かつ複雑なものであった。従来のインク・ジェ
・７ト・ヘッドは高価で複雑なものであっため、従来の
技術者はインク・シェフＩ・・−・ノドが何年もの間継
続的にかつ何千枚もの用紙への印字や描画等（以下単に
印字と称する〉に耐えて確実に使用できる様にしておか
なければならなかった。またインク供給部への再充填が
できる様にしたり、また組立体の保守を要する各種の部
分には清掃や修理の手が届く様にしておく必要かあった
。従来技術におけるこれらの要求により、当然のことな
がら、複雑さと経費の双方が更に増大することとなった
。最後に、また多くの使用者には最も不都合なこととし
て、インク・ジェット装置の使用者はインク溜めを再充
填するか、良くてもインク・カートリッジを交換すると
いう望まれない、やっかいな、またことによったら汚れ
仕事になるかも知れない作業にしばしば直面していた。
いずれの場合でも使用者は何らかの形の液体接続部や液
体プラグを切離してまた接続しなりればならなかったの
で、この作業により手及び衣服を・インクにさらすこと
となっていた。
〔発明の概要〕 上記従来技術にかかるインク・ジェノｌ−・ヘットの問
題点を解決するため、本発明では単純で使い捨て可能な
程度まで低価格のインク・ジェノ（−・ヘッドが与えら
れる。本発明のインク・ジェット・ヘッドは単一のユニ
ットだけで完備した構造になっている。この単一のユニ
ットは、封止されたインク溜め、噴出機構（すなわちイ
ンクに推進力を与えるための機構で、たとえば発熱薄膜
抵抗体）、電気接続体くたとえば薄膜導電布線（ｔｈｉ
ｎｆｉｌｍ　ｃ６ｎｄｔ＋ｃｔｉｖｅ　ｒｕｎ）や端子
領域（ｐａｄ　）　）、流体接続部、及び噴出口（ｊｅ
ｔｔｉｎｇ　ｏｒｉｆｆｉｃｅ）を有している。封止さ
れたインク溜め内のインクを使い切るまでにば普通は５
００ページ一杯に文書を印字できるが、一端使い切って
しまうと、インク・ジェット・ヘット全体を捨て去り、
新しいものに取りかえる。従って本発明のインク・シェ
ノｌ。
・ヘッドのインクを使い切ってしまった場合でも、必要
な作業は機械的および電気的接続を切離しまた接続する
ことだけであり、使用者が流体（つまリインク）の接続
を取り扱う必要は全くない。
〔発明の実施例〕
以下、図面を用いて本発明の詳細な説明する。
第１図は本発明の一実施例である使い捨てできる様社作
られたインク・ジェノ１−・ヘッドの分解図である。同
図において、ガラスあるいはセラミックの基板１０上に
は、複数の薄膜熱インク・ジェット抵抗２０と薄膜金属
の布線３０と端子領域４０が載せられている。薄膜熱イ
ンク・ジェット抵抗２０部分−・の供給口５０が基板１
０を貫通して開口されていて、基板１０のインク溜め側
６０からジェット側７０ヘインクが流れる様にしている
。
オリフィス板８０が基板１０にたとえばエポキシ接着剤
やハンダにより取付けられている。オリフィス板８０は
ガラス、セラミックあるいはニッケル等の金属でできて
いる。また、オリフィス板にはそれぞれが薄膜熱インク
・ジェット抵抗のひとつひとつに関連付けられた複数個
の小径（約０．０２５４〜０．０７６２ｍｍ　（１／　
１０００〜３／　１０００インチ）〕２のオリフィスで
ある液滴排出口９０が設けられている。従って、オリフ
ィス板８０により、印字媒体（紙）へ向かって第１図で
χにより示される方向にインクを削出するためにａ・要
とされ、るジェット室（ｊｅｔｔｉｎｇｃｈａｍｂｅｒ
　）及びオリフィスの両者が与えられる。
オリフィス板８０にはまた、基板１０に向いた側に溝９
５が設けられている。このａ　９５は基板１０と協同し
て毛細管動作により、ジェット供給口５０から液ン１ネ
排出口９０へのインクの流れを与える。オリフィス板８
０の機能としてはまた、輸送及び使用中のすり傷や衝撃
による薄膜熱インク・ジェット抵抗２〇−の損傷を防止
する機械的保護という役目もある。
基板１０はプラスチック・モールドの背板１１０の凹所
１００に装着され接着剤により接着されている。
背板１１０は以下の目的のために用いられている；（１
）基板１０を機械的に保持する。（２）へ・ノド全体を
印字機に位置合わせして取付けるためしかるべき位置に
モールドされた位置合わせピン（ａｌｉｇｎｍｅｎｔｐ
ｉｎ　）　１２０を設ける。（３）Ｌかるべき位置にモ
ールドされた溝１３０及び供給口１４０を設＆Ｊる。こ
の溝１３０及び供給口１４０は基板１０のインク溜め側
６０と協同したときインクをジェノ１−供給ロ５〇−与
える毛細管供給路を形成する。
弾性があり中空のインク溜め１５０が背板１１０の裏面
１６０に接着によって装着・封止される。−インり溜め
１５０の構成は、可撓性のある柔軟なシリコン・ゴムで
一体のものとして作成しても良いが、第１図に示す構成
としては柔軟で可撓性に富んだフラスチソクの半殻１８
０を比較的柔軟性を欠くプラスチックの半殻１７０に接
着したものであり、全体の形状としては裁縫用術ぬき（
ｓｅｗｉｎｇ　　ｔｈｉｎ＋−ｂｌｅ　）状となってい
る。いずれの構成においても、インク溜め１５０の機構
としては、単に、使用中は供給口１４０からしか出るこ
とができない様にしてインクを入れておくというだけで
はなく、更に、薄膜熱インク・ジェ・７ト抵抗２０が活
性化された時に限ってインクが液滴排出口９０から外−
でることができる様にするために背圧を与える。
プラスチック・モールドされた外部ハウジング１９０は
ここにおいて背板１１０の裏面１６０に接着により取付
けられ、インク溜め１５０をしっかりと機械的に保護す
る。インクが液滴排出口９０から射出されるにつれて、
インク溜め１５０（第１図に示す２つの半殻１７０．１
８０から成る構成では、より正確に言えば柔軟性のある
半殻１８０側）はゆっくりと収縮していく。従って気圧
等、用の通気口２００を設ける必要がある。この通気口
２００は第２図に示す様に外部ハウジング１９０に開け
られた穴であり、外部ハウジング１９０内に部分的な真
空状態ができるのを防止する。
インク溜め１５０へは充填口２１０を通してインクを充
填する。充填口２１０は第１図に示す様に背板１１０を
貫通してインク溜め１５０に至る穴である。
インク溜め１５０にインクを充填するにはまず充填口２
１０を部分的真空状態に引いてインク溜め１５０内の空
気の大部分を除去することにより、この部分的真空状態
の影響で液体のインクが・インク溜め１５０内に吸引さ
れる様にする。・インクが充填され終わったら充填口２
１０を密栓して封止することにより、後にインク溜め１
５０のインクが余計な箇所から流出しない様にする。そ
の結果、インクが出るのは、薄膜熱インク・ジェット抵
抗２０に電力が付勢された時、成約排出口９０から飛び
出すだけである。従って、インク・ジェット・−・、／
ド全体にわたるインク通路は、小さな波曲排出口９０以
外は液密（ｈｙｄｒａｕｌｉｃａｌｌｙ　５ｅａｌｅｄ
）である。
使用にあたっては、インク・ジェット・ヘッドは位置合
あわせピン１２０によって印字機に正しく位置合わせさ
れ、クランプ（図示せず）により背板１１０あるいは外
部ハウジング１９０の部分で決まった場所に保持される
。印字機側には薄膜金属バッド４０と協同する様に配置
された電気接点（図示せず）が設りられ、薄膜熱インク
・ジェット抵抗を活性化するため必要な電気信号を供給
する。従って、本発明のインク・ジェット・ヘッドの使
用者はインクを使い切った時でももはや液体の接続部を
切ったりつないだりする必要はない。というのも本発明
のインク・ジェ・７ト・ヘッドば自己完結的なインク供
給部を有した液密なユニットになっているからである。
インク・ジェット・ヘット゛内のインクが最終的に使い
尽されたときには、ヘッド全体を捨てて新しいヘッドで
置き換える。
〔発明の効果〕
以上で説明した様に、本発明によれば簡単な構造で密封
されたインク・ジェソトーー・ノドが与えられるため、
本発明のインク・ジェノ［−・ヘッドを手を汚さずに交
換できる使い捨て−インク・シェツト・−・ノドとして
使用することができる。
【図面の簡単な説明】
第１図は本発明の一実施例であるインク・ジェノを−・
−・ノドの分解図、第２図は第１図のインク・ジェット
・ヘッドを組立てたものを第１図とは異なる方向から見
た斜視図である。 １０：基板、２０：薄膜熱・インク・ジェット抵抗。 ３０：薄膜金属布線、４０：端子領域 ５０：供給口、６０：インク溜め側。 ７０ニジエツト側、８０ニオリフイス板。 ９０：液滴排出口、９５：溝。 １００：凹所、　　　１１０：背板、　　　１２０：位
置合わせピン、　　　ｔａＯ：溝、　　　１４０：供給
口。 １５０：インク溜め、　　　　１６０：裏面。 １７０．１８０　：半殻、　　　　１９０：外部ハウジ
ング。 ２００：通気口、　　　２１０：充填口。 第１頁の続き ０発　明　者　エフ・ダンカン・テリーアメリカ合衆国
アイダホ州ボイ ジー・ジエイ・ロード１２７５７

Claims (1)

  1. 【特許請求の範囲】 収縮可能なインク溜めと、 インクに推進力を与えるインク・シェフ１・手段前記基
    板に接続され前記インク・ジェット手段を覆うとともに
    前記推進力によりインクが射出される穴を有するオリフ
    ィス手段と、 前記基板と前記インク溜めに接続され機械的に支持して
    前記基板と前記インク溜め間に密閉流路を与える支持手
    段と、 前記インク溜めに接続され前記インク溜めにインクを入
    れる充填手段とを設け、 前記充填手段を閉じることによりインクの出口を前記オ
    リフィス手段のみにしたインク・ジェノＩ・・−・ノ１
    ゜
JP59080022A 1983-05-02 1984-04-20 インク・ジエツト・ヘツド Pending JPS59207263A (ja)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US490754 1983-05-02
US06/490,754 US4500895A (en) 1983-05-02 1983-05-02 Disposable ink jet head

Publications (1)

Publication Number Publication Date
JPS59207263A true JPS59207263A (ja) 1984-11-24

Family

ID=23949320

Family Applications (2)

Application Number Title Priority Date Filing Date
JP59080022A Pending JPS59207263A (ja) 1983-05-02 1984-04-20 インク・ジエツト・ヘツド
JP1992006886U Expired - Lifetime JP2552647Y2 (ja) 1983-05-02 1992-01-23 インク・ジェット・ヘッド

Family Applications After (1)

Application Number Title Priority Date Filing Date
JP1992006886U Expired - Lifetime JP2552647Y2 (ja) 1983-05-02 1992-01-23 インク・ジェット・ヘッド

Country Status (7)

Country Link
US (1) US4500895A (ja)
EP (1) EP0125742B1 (ja)
JP (2) JPS59207263A (ja)
KR (1) KR870001566B1 (ja)
DE (1) DE3470868D1 (ja)
HK (1) HK104088A (ja)
SG (1) SG58688G (ja)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5149211A (en) * 1988-08-12 1992-09-22 Pettigrew Robert M Printers and ancillary systems
US5479198A (en) * 1991-06-19 1995-12-26 Canon Kabushiki Kaisha Liquid storing container, an ink jet head cartridge and an ink jet recording apparatus
US5500664A (en) * 1991-01-25 1996-03-19 Canon Kabushiki Kaisha Ink jet recording apparatus and detachably mountable ink jet cartridge
JP2008279367A (ja) * 2007-05-10 2008-11-20 Sharp Corp 液体吐出装置用詰替容器とそれを備えた液体吐出装置

Families Citing this family (237)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4630078A (en) * 1984-03-30 1986-12-16 Canon Kabushiki Kaisha Liquid recording head
JPS60204366A (ja) * 1984-03-30 1985-10-15 Canon Inc インクジエツト記録ヘツドおよびその保存方法
US4633274A (en) * 1984-03-30 1986-12-30 Canon Kabushiki Kaisha Liquid ejection recording apparatus
JPH064324B2 (ja) * 1984-06-11 1994-01-19 キヤノン株式会社 液体噴射記録ヘツド
JPS6119367A (ja) * 1984-07-05 1986-01-28 Canon Inc インクジェット記録ヘッド
JPS6135955A (ja) * 1984-07-30 1986-02-20 Canon Inc 液体噴射記録ヘツド
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Also Published As

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HK104088A (en) 1988-12-30
KR840009254A (ko) 1984-12-26
EP0125742A3 (en) 1985-12-18
KR870001566B1 (ko) 1987-09-04
US4500895A (en) 1985-02-19
EP0125742A2 (en) 1984-11-21
JPH04107043U (ja) 1992-09-16
DE3470868D1 (en) 1988-06-09
EP0125742B1 (en) 1988-05-04
SG58688G (en) 1989-01-27
JP2552647Y2 (ja) 1997-10-29

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