JPH1044434A - Nozzle head for electrostatic attraction type ink jet printer and its production - Google Patents
Nozzle head for electrostatic attraction type ink jet printer and its productionInfo
- Publication number
- JPH1044434A JPH1044434A JP20615496A JP20615496A JPH1044434A JP H1044434 A JPH1044434 A JP H1044434A JP 20615496 A JP20615496 A JP 20615496A JP 20615496 A JP20615496 A JP 20615496A JP H1044434 A JPH1044434 A JP H1044434A
- Authority
- JP
- Japan
- Prior art keywords
- nozzle head
- template
- jet printer
- ink jet
- ink
- 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.)
- Granted
Links
Landscapes
- Particle Formation And Scattering Control In Inkjet Printers (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、多数のノズルを具
備するノズルヘッドと対向状に電極を配設してなる静電
吸引型インクジェットプリンター用のノズルヘッドであ
って、各ノズルを対向電極側に突出するよう構成したノ
ズルヘッド、及びその製造方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a nozzle head for an electrostatic suction type ink jet printer in which electrodes are arranged opposite to a nozzle head having a large number of nozzles. And a method of manufacturing the nozzle head.
【０００２】[0002]
【従来の技術】インクジェットプリンターには、ノズル
ヘッド内のインクタンクにて泡を発生させ、発砲力にて
インクを噴射する形式のものや、ノズルを具備するノズ
ルヘッドに対向して電極を配設し、ノズルより電極に対
して静電気を発生させ、その吸引力にてインクを噴射す
る形式のもの等がある。後者は、静電気にてインクの噴
射形状が錐状に細く絞られるので、細部を鮮明に印刷で
きるという利点がある。そして、更に鮮明かつ確実な印
刷のため、静電吸引によるインクの噴射進路を確実にす
るためには、ノズル先端から電極への静電気の発生経路
が絞られていることが必要である。そのため、ノズルの
先端をノズルヘッドより対向電極側に突出させるように
することは有効である。2. Description of the Related Art Ink-jet printers are of the type in which bubbles are generated in an ink tank in a nozzle head and the ink is ejected by a firing force, or electrodes are provided opposite a nozzle head having nozzles. Then, there is a type in which static electricity is generated from a nozzle to an electrode, and ink is ejected by the suction force. The latter has an advantage that the ink ejection shape is narrowed down to a conical shape by static electricity, so that details can be printed clearly. In order to ensure a clear ink ejection path by electrostatic suction for clearer and more reliable printing, it is necessary that the path of generation of static electricity from the nozzle tip to the electrode be narrowed. Therefore, it is effective to make the tip of the nozzle protrude from the nozzle head toward the counter electrode.
【０００３】[0003]
【発明が解決しようとする課題】しかし、実際にこのよ
うなノズル先端の突起部を設けるのは、困難がある。従
来として用いられる方法は、先端の突起部までのノズル
の型孔を穿設した樹脂成形のノズルヘッドに対蝕性のメ
ッキを施し、ノズル先端側の表面を研磨して、該表面の
メッキを除去した後、有機溶剤に浸漬して、一定の厚さ
だけ樹脂を溶解させ、先端のメッキ部分をノズルヘッド
より突出した様態で残すというものがあるが、これで
は、ノズルヘッドそのものを構成する樹脂の溶解進度を
測定するのが困難であり、また、溶解も、均等に進行す
るとはいえず、溶解後のノズルヘッド表面に凸凹を生じ
させるおそれもある。このようなノズル先端の突起部を
容易かつ正確に、迅速かつ低コストにて形成できるよう
なノズル製造方法があれば、低価格で印刷精度に優れた
インクジェットプリンターを提供できるのである。However, it is difficult to actually provide such a projection at the tip of the nozzle. The method used conventionally is to apply a corrosion resistant plating to a resin-molded nozzle head in which a mold hole of a nozzle up to a protrusion at the tip is formed, and to polish the surface of the nozzle tip side, thereby plating the surface. After removal, the resin is immersed in an organic solvent to dissolve the resin to a certain thickness, leaving the plated part at the tip in a form protruding from the nozzle head. It is difficult to measure the degree of dissolution, and the dissolution does not proceed evenly, which may cause unevenness on the nozzle head surface after dissolution. If there is a nozzle manufacturing method capable of forming such a protrusion at the tip of a nozzle easily, accurately, quickly and at low cost, an ink jet printer with excellent printing accuracy at low cost can be provided.
【０００４】[0004]
【課題を解決するための手段】本発明は、以上のような
課題を解決すべく、次のような手段を用いるものであ
る。まず第一に、静電吸引型インクジェットプリンタの
インク供給体に組み付けられるノズルヘッドであって、
導電性薄板の表裏にわたり貫通する多数の小筒を片面側
に規則的に突設した静電吸引型インクジェットプリンタ
用ノズルヘッドを構成する。The present invention uses the following means in order to solve the above problems. First of all, a nozzle head assembled to an ink supply of an electrostatic suction type inkjet printer,
A nozzle head for an electrostatic suction type ink jet printer is provided in which a large number of small cylinders penetrating both sides of a conductive thin plate are regularly projected on one side.
【０００５】第二に、前記構成の静電吸引型インクジェ
ットプリンタ用ノズルヘッドにおいて、該導電性薄板
を、無電界ニッケルメッキにて構成した吸引型インクジ
ェットプリンタ用ノズルヘッドを構成する。Secondly, in the nozzle head for an electrostatic suction type ink jet printer having the above-mentioned structure, a nozzle head for a suction type ink jet printer in which the conductive thin plate is formed by electroless nickel plating.
【０００６】第三に、化学的溶解可能な型板に多数の小
孔を形成する工程と、該型板の表面、裏面、及び小孔内
面を導電性金属によりメッキする工程と、片面のメッキ
層を研磨除去する工程と、該型板を化学的溶解により除
去する工程とよりなる静電吸引型インクジェットプリン
タ用ノズルヘッドの製造方法を採用する。Third, a step of forming a large number of small holes in a chemically dissolvable template, a step of plating the front surface, the back surface, and the inside of the small holes of the template with a conductive metal; A method of manufacturing a nozzle head for an electrostatic suction type ink jet printer, comprising a step of polishing and removing a layer and a step of removing the template by chemical dissolution, is employed.
【０００７】[0007]
【発明の実施の形態】本発明の実施の形態について、添
付の図面にて説明する。図１は本発明のノズルヘッドを
用いた静電吸引型インクジェットプリンタの側面断面略
図、図２は本発明のノズルヘッドを取り付けたインク供
給体の斜視図、図３は本発明のノズルヘッド製造方法の
第一段階であって、型板の側面断面略図、図４は同じく
第二段階であって、型板に導電性金属をメッキした状態
の側面断面略図、図５は同じく第三段階であって、型板
にメッキした導電性金属の片面を研磨除去した状態の側
面断面略図、図６は同じく第四段階であって、型板を除
去した状態の側面断面略図である。Embodiments of the present invention will be described with reference to the accompanying drawings. FIG. 1 is a schematic side sectional view of an electrostatic suction type ink jet printer using a nozzle head of the present invention, FIG. 2 is a perspective view of an ink supply body to which the nozzle head of the present invention is attached, and FIG. 3 is a method of manufacturing a nozzle head of the present invention. FIG. 4 is a second stage, also in a second stage, in which a conductive metal is plated on the template, and FIG. 5 is also a third stage. FIG. 6 is a schematic side sectional view showing a state where one side of the conductive metal plated on the template has been polished and removed, and FIG. 6 is also a fourth stage showing a state where the template has been removed.
【０００８】図１の如く、本発明のノズルヘッド１は、
導電性薄板、例えばニッケルより構成され、インク供給
体であるインクタンク２の片面（後記対向電極３への対
峙側面）に取り付けられる。インクタンク２は樹脂加工
にて得られ、図２の如く、側面部分は強度を保つため、
厚めにして、インク充填部分を表裏貫通状に形成してい
る。インクタンク２に対するノズルヘッド１の取付は、
接着剤にて接着する。As shown in FIG. 1, a nozzle head 1 according to the present invention comprises:
It is made of a conductive thin plate, for example, nickel, and is attached to one surface (a side surface facing the opposite electrode 3 described later) of the ink tank 2 as an ink supply. The ink tank 2 is obtained by resin processing, and as shown in FIG.
The ink-filled portion is formed in a penetrating shape on the front and back sides by making it thicker. Attachment of the nozzle head 1 to the ink tank 2
Glue with an adhesive.
【０００９】インクジェットプリンタ全体としての概略
構成を説明すると、ノズルヘッド１には筒状の多数のノ
ズル１ａ・１ａ・・・が、反インクタンク２側に規則的
に突設されていて、該ノズルヘッド１に対向状に対向電
極盤３を配設し、該対向電極盤３には、小孔の内面に導
電性金属を貼設してなるゲート電極３ａ・３ａ・・・
を、該ノズルヘッド１の各ノズル１ａ・１ａ・・・に対
向状に配置している。記録用紙Ｐは、対向電極盤３を介
して、ノズルヘッド１と反対側に搬送される。The overall configuration of the ink jet printer will be described. The nozzle head 1 has a large number of cylindrical nozzles 1a, 1a,. A counter electrode plate 3 is disposed opposite the head 1, and the counter electrode plate 3 has gate electrodes 3a, 3a,.
Are arranged to face each of the nozzles 1a of the nozzle head 1. The recording paper P is conveyed to the side opposite to the nozzle head 1 via the opposing electrode board 3.
【００１０】インクタンク２に充填されたインクＫは、
ノズルヘッド１の各ノズル１ａ・１ａ・・・内に充填さ
れる。該ノズルヘッド１には、バイアス電圧ＢＶが印加
されており、該バイアス電圧ＢＶの印加によって、全ノ
ズル１ａ・１ａ・・・内に充填されたインクＫが、対向
電極盤３に向けて、少し盛り上がった状態となる。一
方、対向電極３の各ゲート電極３ａ・３ａ・・・には、
独立的にプリント電圧ＰＶが印加されるものである。即
ち、プリント電圧ＰＶが印加されたゲート電極３ａと、
それに対向するノズル１ａとの間には、大きな電位差に
よる静電吸引力が生じ、盛り上がった状態で待機してい
たインクＫがノズル１ａよりゲート電極３ａへと飛翔
し、該ゲート電極３ａの孔を通過して、記録用紙Ｐ上に
達する。プリント電圧ＰＶが印加されないゲート電極３
ａに対向するノズル１ａ内のインクＫは、盛り上がった
ままの状態で待機している。The ink K filled in the ink tank 2 is
Each nozzle 1a of the nozzle head 1 is filled. A bias voltage BV is applied to the nozzle head 1, and by the application of the bias voltage BV, the ink K filled in all the nozzles 1a, 1a. It is in a state of excitement. On the other hand, each of the gate electrodes 3a, 3a,.
The print voltage PV is independently applied. That is, the gate electrode 3a to which the print voltage PV is applied,
An electrostatic attraction due to a large potential difference is generated between the nozzle 1a and the nozzle 1a opposed thereto, and the ink K which has been standing by in a raised state flies from the nozzle 1a to the gate electrode 3a, and a hole in the gate electrode 3a is formed. After passing through, it reaches the recording paper P. Gate electrode 3 to which printing voltage PV is not applied
The ink K in the nozzle 1a facing a is in a state of being raised while waiting.
【００１１】次に、ノズルヘッド１の製造方法について
図３乃至図６より説明する。まず、図３の如く、例えば
板厚０．３〜０．５ｍｍの銅板或いはアルミ板等の型板
４に表裏貫通状の各ノズルに該当する孔４ａ・４ａ・・
・（直径０．１〜０．３ｍｍ）を、切削加工、或いはレ
ーザー加工等で形成する。Next, a method of manufacturing the nozzle head 1 will be described with reference to FIGS. First, as shown in FIG. 3, for example, holes 4a, 4a,.
-(Diameter: 0.1 to 0.3 mm) is formed by cutting or laser processing.
【００１２】こうして孔４ａ・４ａ・・・を形成した型
板４の全表面に、図４の如く、例えば厚み３０μ〜５０
μで、無電界ニッケルメッキＮを施す。そして、図５の
如く型板４の表裏に貼設された無電界ニッケルメッキＮ
のうち、いずれか片面のものを研磨除去して、型板４の
表面を露出させる。更に、これをエッチング液に浸漬す
る。エッチング液としては、濃硝酸か、またはアンモニ
ア水やシアン化アルカリ溶液等のアルカリ溶液を用い
る。そのため、図６の如く、銅板或いはアルミ板である
型板４が溶解し、無電界ニッケルメッキＮの部分のみが
残る。これがそのままノズルヘッド１を形成するもので
あり、該型板４の各孔４ａ・４ａ・・・の内面に施され
ていたメッキ部分が、ノズルヘッド１にて突起状に形成
されるノズル１ａ・１ａ・・・に該当するのである。As shown in FIG. 4, the entire surface of the template 4 having the holes 4a, 4a,.
Electroless nickel plating N is applied with μ. Then, as shown in FIG. 5, the electroless nickel plating N stuck on the front and back of the template 4 is used.
Of these, one of the surfaces is polished and removed to expose the surface of the template 4. Further, this is immersed in an etching solution. As an etching solution, concentrated nitric acid or an alkali solution such as aqueous ammonia or an alkali cyanide solution is used. Therefore, as shown in FIG. 6, the mold plate 4 which is a copper plate or an aluminum plate is melted, and only the portion of the electroless nickel plating N remains. This forms the nozzle head 1 as it is, and the plated portions formed on the inner surfaces of the holes 4a, 4a,. 1a...
【００１３】[0013]
【発明の効果】本発明は以上のような構成、及び方法と
したので、次のような効果を奏するものである。まず、
請求項１の如くノズルヘッドをインク供給体に組み付け
るだけの簡単な構成で、インクジェットプリントタ用の
インク供給装置を構成することができ、低コスト化を図
ることができる。そして、このように片面側に突出する
小筒を形成することで、インク飛翔姿勢の安定した、従
って、印刷精度のよいインク供給装置とすることができ
るのである。The present invention has the following configuration and method, and has the following effects. First,
An ink supply device for an ink jet printer can be configured with a simple configuration in which the nozzle head is simply assembled to the ink supply body as in claim 1, and cost reduction can be achieved. By forming the small cylinder protruding to one side in this way, it is possible to provide an ink supply device having a stable ink flying posture and, therefore, high printing accuracy.
【００１４】また、請求項２の如く、ノズルヘッドを形
成する導電性薄板は、無電界ニッケルメッキにて得ら
れ、加工容易で、低コスト化に貢献する。Further, the conductive thin plate forming the nozzle head is obtained by electroless nickel plating, and is easy to process and contributes to cost reduction.
【００１５】そして、請求項３の如き製造方法としたの
で、インク飛翔姿勢の安定した、ノズル部分を対向電極
に向けて突出する形状のノズルヘッドの製造工程が大幅
に簡略化でき、低コスト化にも貢献する。According to the manufacturing method of the third aspect, the manufacturing process of a nozzle head having a stable ink flying posture and a shape in which the nozzle portion protrudes toward the counter electrode can be greatly simplified, and the cost can be reduced. Also contribute to.
【図１】本発明のノズルヘッドを用いた静電吸引型イン
クジェットプリンタの側面断面略図である。FIG. 1 is a schematic side sectional view of an electrostatic suction type inkjet printer using a nozzle head of the present invention.
【図２】本発明のノズルヘッドを取り付けたインク供給
体の斜視図である。FIG. 2 is a perspective view of an ink supply body to which the nozzle head of the present invention is attached.
【図３】本発明のノズルヘッド製造方法の第一段階であ
って、型板の側面断面略図である。FIG. 3 is a schematic side sectional view of a template, which is a first step of the method for manufacturing a nozzle head according to the present invention.
【図４】同じく第二段階であって、型板に導電性金属を
メッキした状態の側面断面略図である。FIG. 4 is a schematic side cross-sectional view of a second stage in which a conductive metal is plated on a template.
【図５】同じく第三段階であって、型板にメッキした導
電性金属の片面を研磨除去した状態の側面断面略図であ
る。FIG. 5 is a schematic side cross-sectional view of the third stage in which one side of a conductive metal plated on a template has been polished and removed.
【図６】同じく第四段階であって、型板を除去した状態
の側面断面略図である。FIG. 6 is a schematic side sectional view of the fourth stage, with the template removed.
１ ノズルヘッド １ａ ノズル ２ インクタンク ３ 対向電極盤 ３ａ ゲート電極 ４ 型板 ４ａ 孔 Ｎ 無電界ニッケルメッキ DESCRIPTION OF SYMBOLS 1 Nozzle head 1a Nozzle 2 Ink tank 3 Counter electrode board 3a Gate electrode 4 Mold plate 4a Hole N Electroless nickel plating
Claims (3)
ンク供給体に組み付けられるノズルヘッドであって、導
電性薄板の表裏にわたり貫通する多数の小筒を片面側に
規則的に突設したことを特徴とする静電吸引型インクジ
ェットプリンタ用ノズルヘッド。1. A nozzle head assembled to an ink supply of an electrostatic suction type ink jet printer, wherein a large number of small cylinders penetrating both sides of a conductive thin plate are regularly projected on one side. Nozzle head for electrostatic suction type inkjet printer.
トプリンタ用ノズルヘッドにおいて、該導電性薄板を、
無電界ニッケルメッキにて構成したことを特徴とする静
電吸引型インクジェットプリンタ用ノズルヘッド。2. The nozzle head for an electrostatic suction type ink jet printer according to claim 1, wherein the conductive thin plate is
A nozzle head for an electrostatic suction type ink jet printer, which is constituted by electroless nickel plating.
成する工程と、該型板の表面、裏面、及び小孔内面を導
電性金属によりメッキする工程と、片面のメッキ層を研
磨除去する工程と、該型板を化学的溶解により除去する
工程とよりなることを特徴とする静電吸引型インクジェ
ットプリンタ用ノズルヘッドの製造方法。3. A step of forming a plurality of small holes in a chemically dissolvable template, a step of plating the front surface, the back surface, and the inside of the small holes of the template with a conductive metal; A method for manufacturing a nozzle head for an electrostatic suction type inkjet printer, comprising: a step of polishing and removing; and a step of removing the template by chemical dissolution.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20615496A JP3109442B2 (en) | 1996-08-05 | 1996-08-05 | Nozzle head for electrostatic suction type ink jet printer and manufacturing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20615496A JP3109442B2 (en) | 1996-08-05 | 1996-08-05 | Nozzle head for electrostatic suction type ink jet printer and manufacturing method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH1044434A true JPH1044434A (en) | 1998-02-17 |
| JP3109442B2 JP3109442B2 (en) | 2000-11-13 |
Family
ID=16518700
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP20615496A Expired - Fee Related JP3109442B2 (en) | 1996-08-05 | 1996-08-05 | Nozzle head for electrostatic suction type ink jet printer and manufacturing method thereof |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3109442B2 (en) |
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| US7537314B2 (en) | 1998-10-16 | 2009-05-26 | Silverbrook Research Pty Ltd | Inkjet printhead having nozzle arrangements with ink spreading prevention rims |
| US7549726B2 (en) | 1998-10-16 | 2009-06-23 | Silverbrook Research Pty Ltd | Inkjet printhead with a wafer assembly having an array of nozzle arrangements |
| US7556352B2 (en) | 1998-10-16 | 2009-07-07 | Silverbrook Research Pty Ltd | Inject printhead with outwarldy extending actuator tails |
| US7556358B2 (en) | 1998-10-16 | 2009-07-07 | Silverbrook Research Pty Ltd | Micro-electromechanical integrated circuit device with laminated actuators |
| US7556353B2 (en) | 1998-10-16 | 2009-07-07 | Silverbrook Research Pty Ltd | Printhead with small drive transistor to nozzle area ratio |
| US7562962B2 (en) | 1998-10-16 | 2009-07-21 | Silverbrook Research Pty Ltd | Printhead for use in camera photo-printing |
| US7669964B2 (en) | 1998-10-16 | 2010-03-02 | Silverbrook Research Pty Ltd | Ink supply unit for a printhead in an inkjet printer |
| US7669950B2 (en) | 1998-10-16 | 2010-03-02 | Silverbrook Research Pty Ltd | Energy control of a nozzle of an inkjet printhead |
| US7677686B2 (en) | 1998-10-16 | 2010-03-16 | Silverbrook Research Pty Ltd | High nozzle density printhead ejecting low drop volumes |
| US7735968B2 (en) | 1998-10-16 | 2010-06-15 | Silverbrook Research Pty Ltd | Inkjet printhead nozzle arrangement with actuator arm slot protection barrier |
| US7748827B2 (en) | 1998-10-16 | 2010-07-06 | Silverbrook Research Pty Ltd | Inkjet printhead incorporating interleaved actuator tails |
| US7815291B2 (en) | 1998-10-16 | 2010-10-19 | Silverbrook Research Pty Ltd | Printhead integrated circuit with low drive transistor to nozzle area ratio |
-
1996
- 1996-08-05 JP JP20615496A patent/JP3109442B2/en not_active Expired - Fee Related
Cited By (54)
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