JPS6259046A - Ink jet head - Google Patents

Ink jet head

Info

Publication number
JPS6259046A
JPS6259046A JP19906685A JP19906685A JPS6259046A JP S6259046 A JPS6259046 A JP S6259046A JP 19906685 A JP19906685 A JP 19906685A JP 19906685 A JP19906685 A JP 19906685A JP S6259046 A JPS6259046 A JP S6259046A
Authority
JP
Japan
Prior art keywords
ink
thermal head
head
ink jet
jet head
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
JP19906685A
Other languages
Japanese (ja)
Inventor
Masatoshi Yasuhara
安原　正俊
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.)
NEC Corp
Original Assignee
NEC Corp
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 NEC Corp filed Critical NEC Corp
Priority to JP19906685A priority Critical patent/JPS6259046A/en
Publication of JPS6259046A publication Critical patent/JPS6259046A/en
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
    • B41J2/135—Nozzles
    • B41J2/16—Production of nozzles
    • B41J2/1621—Manufacturing processes
    • B41J2/164—Manufacturing processes thin film formation
    • 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
    • B41J2/16—Production of nozzles
    • B41J2/1601—Production of bubble jet print heads
    • B41J2/1603—Production of bubble jet print heads of the front shooter type
    • 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
    • B41J2/16—Production of nozzles
    • B41J2/1606—Coating the nozzle area or the ink chamber

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Particle Formation And Scattering Control In Inkjet Printers (AREA)

Abstract

PURPOSE:To prevent the impossibility of the discharge of ink by removing burning, by executing the coating of tetraethylene fluoride or the like on the surface on which heating elements are provided, of a thermal head. CONSTITUTION:This invention is an ink jet head in which ink is quickly heated by applying a voltage to a thermal head 14 and the ink is jetted by the pressure of generated bubble. The coat of tetraethylene fluoride or the like is applied on all the surface 18 on which heating elements are provided, of the thermal head 14 touching the nozzle 5 part of ink jet head 11. Therefore, even though a heating element is repeatedly heated, the not evaporating component is also not piled in the minute hole 7 of thermal head 14 due to the non-adhesion of coat agent. Then, it is discharged from a nozzle 5 as it is minute and is not piled on the heating element of thermal head, its vicinity and in the minute hole.

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プリンタ装置用の印字ヘッド、
特にドツトマトリクスによって文字又は図形を形成する
印字ヘッドに用いられるインクジェットヘッドに関する
・ 〔従来の技術〕 近年オフィスオートメーションの普及により事務所内で
文書等を作成しその場で印字する要求が高まっており、
室内を静粛に保つため低騒音かつ印字品位の良好なプリ
ンタが求められている。[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a print head for an inkjet printer device,
In particular, it relates to inkjet heads used in printheads that form characters or figures using dot matrix. [Prior technology] In recent years, with the spread of office automation, there has been an increasing demand for creating documents, etc. in offices and printing them on the spot.
In order to keep the room quiet, printers with low noise and good print quality are required.

また、パーソナルコンピュータの普及によりカラーディ
スプレイ上の文字及び図形をカラーで出力する要求が高
まっており、これらの要求を満たすプリンタの一つとし
てインクジェットプリンタが実用化されている。Further, with the spread of personal computers, there is an increasing demand for outputting characters and graphics on color displays in color, and inkjet printers have been put into practical use as one of the printers that meet these demands.

第２図は従来のインクジェットヘッドの中でバブルジェ
ット方式と呼ばれている方式の積層薄板部の構成例であ
り、第３図はその断面図であり第４図はインクジェット
ヘッドの斜視図である。Fig. 2 shows an example of the configuration of a laminated thin plate section of a conventional inkjet head using a method called a bubble jet method, Fig. 3 is a cross-sectional view thereof, and Fig. 4 is a perspective view of the inkjet head. .

この種、インクジェットヘッドは図に示すようにノズル
５．・・・を設けたノズルプレート２と、インク供給路
６を設けたサプライプレート３と、微小、孔７．・・・
を設けたベースプレート４とを積層し、固定金具１を用
いて一体に結合していた。９は位置決め穴、８はインク
供給口、１０は固定穴である・このインクジェットヘッ
ド１１は第４図に示すようにサーマルヘッド１４が直接
液しておりインクを加熱することにより発生する気泡の
圧力によりインクを噴出させる。１３は位置決めビン、
１５はインクタンク、１６はキャリア、１７はガイドシ
ャフトである。This type of inkjet head has nozzles 5 and 5 as shown in the figure. ..., a supply plate 3 having an ink supply path 6, and a small hole 7. ...
The base plate 4 provided with the above was laminated and joined together using the fixing fittings 1. 9 is a positioning hole, 8 is an ink supply port, and 10 is a fixing hole. As shown in FIG. 4, this inkjet head 11 is directly injected by a thermal head 14, and the pressure of bubbles generated by heating the ink is The ink is ejected. 13 is a positioning bin;
15 is an ink tank, 16 is a carrier, and 17 is a guide shaft.

〔発明が解決しようとする問題点〕[Problem that the invention seeks to solve]

しかしながら、このサーマルヘッドにおいては、サーマ
ルヘッドの熱素子及びその近傍にインクの蒸発しない成
分がこげついて徐々に堆積していき、熱伝導が悪くなっ
たり、微小孔をふさいだシして吐出不能となるという欠
点があった。However, in this thermal head, non-evaporable components of the ink burn and gradually accumulate on the thermal element of the thermal head and its vicinity, resulting in poor heat conduction and blocking the micropores, making ejection impossible. There was a drawback.

本発明は前記問題点を解消するもので、こげつきを防止
したインクジェットヘッドを提供するものである。The present invention solves the above problems and provides an inkjet head that prevents burning.

〔問題点を解決するための手段〕[Means for solving problems]

本発明はサーマルヘッドの熱素子を設けた面に四・フッ
化エチレン等のコーティングを施したことを特徴とする
インクジェットヘッドである。The present invention is an inkjet head characterized in that the surface of the thermal head on which the heating element is provided is coated with tetrafluoroethylene or the like.

〔実施例〕 以下、本発明の一実施例を図によって説明する。〔Example〕 Hereinafter, one embodiment of the present invention will be described with reference to the drawings.

第１図において、本発明はサーマルヘッド１４に電圧を
印加してインクを急速に加熱することにより発生する気
泡の圧力によりインクを噴出させるものであり、インク
ジェットヘッド１１のノズル５部分に接触するサーマル
ヘッド１４の熱素子を設けた而１８の全面に四・フッ化
エチレン等のコーティングを施したものである。In FIG. 1, the present invention applies a voltage to the thermal head 14 to rapidly heat the ink, and the ink is ejected by the pressure of the bubbles generated. The entire surface of the head 14 provided with the heating element 18 is coated with tetrafluoroethylene or the like.

従って、繰シ返し熱素子を加熱してもコート剤の非粘着
性により蒸発しない成分もサーマルヘッド１４や微小孔
７内に堆積しないため、微小物のままノズル５より吐出
され、サーマルヘッド１４の熱素子及びその近傍や微小
孔７内に堆積することはないＯ 〔発明の効果〕 以上説明したように本発明はサーマルヘッドの熱素子を
設けた面に四・フッ化エチレン等のコーティングを施す
ことにより、こげつきをなくしインクの吐出不能を防ぐ
ことができる効果を有するものである。Therefore, even if the thermal element is repeatedly heated, components that do not evaporate due to the non-adhesive property of the coating agent do not accumulate in the thermal head 14 or in the microholes 7, so they are ejected from the nozzle 5 as microscopic objects and are deposited in the thermal head 14. O is not deposited on the thermal element, its vicinity, or in the micropores 7. [Effects of the Invention] As explained above, the present invention coats the surface of the thermal head on which the thermal element is provided with a coating of tetrafluoroethylene or the like. This has the effect of eliminating scorching and preventing the inability to eject ink.

【図面の簡単な説明】[Brief explanation of drawings]

第１図は本発明の一実施例を示す平面図、第２図はイン
クジェットヘッドの積層薄板部の構成を示す分解図、第
３図は同断面図、第４図はインクジェットヘッドの斜視
図である。 １・・・固定金具、２・・・ノズルプレート、３・・・
サプライプレート、４・・・ペースプレート、５・・・
ノズル、６・・・インク供給路、７・・・微小孔、８・
・・インク供給口、９・・・位置決め穴、１０・・・固
定穴、１１・・・積層薄板、１２・・・印字用紙、１３
・・・位置決めピン、１４・・・サーマルヘッド、１５
・・・インクタンク、１６・・・キャリア、１７・・・
ガイドシャフト、１８・・・コーテイング面特許出願人
　　日本電気株式会社 第１図 第２図Fig. 1 is a plan view showing an embodiment of the present invention, Fig. 2 is an exploded view showing the structure of the laminated thin plate portion of the inkjet head, Fig. 3 is a sectional view thereof, and Fig. 4 is a perspective view of the inkjet head. be. 1...Fixing metal fittings, 2...Nozzle plate, 3...
Supply plate, 4... Pace plate, 5...
Nozzle, 6... Ink supply path, 7... Micro hole, 8...
... Ink supply port, 9 ... Positioning hole, 10 ... Fixing hole, 11 ... Laminated thin plate, 12 ... Printing paper, 13
...Positioning pin, 14...Thermal head, 15
...Ink tank, 16...Carrier, 17...
Guide shaft, 18...Coating surface Patent applicant: NEC Corporation Figure 1 Figure 2

Claims (1)

【特許請求の範囲】[Claims] （１）サーマルヘッドに電圧を印加してインクを急速に
加熱することにより発生する気泡の圧力によりインクを
噴出させるインクジェットヘッドにおいて、サーマルヘ
ッドの熱素子を設けた面に、四フッ化エチレン等のコー
ティングを施したことを特徴とするインクジェットヘッ
ド。(1) In an inkjet head that ejects ink using the pressure of bubbles generated by applying a voltage to the thermal head and rapidly heating the ink, the thermal element of the thermal head is coated with a material such as tetrafluoroethylene. An inkjet head characterized by a coating.
JP19906685A 1985-09-09 1985-09-09 Ink jet head Pending JPS6259046A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP19906685A JPS6259046A (en) 1985-09-09 1985-09-09 Ink jet head

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP19906685A JPS6259046A (en) 1985-09-09 1985-09-09 Ink jet head

Publications (1)

Publication Number Publication Date
JPS6259046A true JPS6259046A (en) 1987-03-14

Family

ID=16401540

Family Applications (1)

Application Number Title Priority Date Filing Date
JP19906685A Pending JPS6259046A (en) 1985-09-09 1985-09-09 Ink jet head

Country Status (1)

Country Link
JP (1) JPS6259046A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6276273B1 (en) 1999-06-11 2001-08-21 Kodak Polychrome Graphics Llc Surfactant-pretreated printing plate substrate, lithographic printing plate and method for production thereof
US6451413B1 (en) 1999-02-04 2002-09-17 Kodak Polychrome Graphics Llc Method of preparing a printing plate and printing plate

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6451413B1 (en) 1999-02-04 2002-09-17 Kodak Polychrome Graphics Llc Method of preparing a printing plate and printing plate
US6455132B1 (en) 1999-02-04 2002-09-24 Kodak Polychrome Graphics Llc Lithographic printing printable media and process for the production thereof
US6472054B1 (en) 1999-02-04 2002-10-29 Kodak Polychrome Graphics Llc Method of preparing a printing plate and printing plate
US6555205B2 (en) 1999-02-04 2003-04-29 Kodak Polychrome Graphics Llc Printing plate and method to prepare a printing plate
US6276273B1 (en) 1999-06-11 2001-08-21 Kodak Polychrome Graphics Llc Surfactant-pretreated printing plate substrate, lithographic printing plate and method for production thereof

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