JPS6059869B2 - Ink recording head - Google Patents
Ink recording headInfo
- Publication number
- JPS6059869B2 JPS6059869B2 JP7809479A JP7809479A JPS6059869B2 JP S6059869 B2 JPS6059869 B2 JP S6059869B2 JP 7809479 A JP7809479 A JP 7809479A JP 7809479 A JP7809479 A JP 7809479A JP S6059869 B2 JPS6059869 B2 JP S6059869B2
- Authority
- JP
- Japan
- Prior art keywords
- ink
- slit
- recording head
- electrode
- electrodes
- 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.)
- Expired
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
- B41J2/015—Ink jet characterised by the jet generation process
- B41J2/04—Ink jet characterised by the jet generation process generating single droplets or particles on demand
- B41J2/06—Ink jet characterised by the jet generation process generating single droplets or particles on demand by electric or magnetic field
-
- 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
- B41J2/015—Ink jet characterised by the jet generation process
- B41J2/04—Ink jet characterised by the jet generation process generating single droplets or particles on demand
- B41J2/06—Ink jet characterised by the jet generation process generating single droplets or particles on demand by electric or magnetic field
- B41J2002/061—Ejection by electric field of ink or of toner particles contained in ink
Landscapes
- Particle Formation And Scattering Control In Inkjet Printers (AREA)
Description
【発明の詳細な説明】
この発明は、静電加速形インクジェット記録方式におい
て、インク噴出口を集積したイン記録用ヘッドに関する
ものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an in-recording head in which ink ejection ports are integrated in an electrostatic acceleration type inkjet recording system.
従来、集積したインクジェットノズルは、中空の針を多
数集積して構成していたため、集積度の向上がはかれず
、また、インクによるノズルの目詰りが大きな問題とな
つていた。Conventionally, integrated inkjet nozzles have been constructed by integrating a large number of hollow needles, so the degree of integration has not been improved, and clogging of the nozzles with ink has been a major problem.
この発明は、これらの欠点を除去するためになされたも
ので、従来の集積したノズルをスリット状のインク噴出
口におきかえることによりインク噴出口の集積度の向上
をはかるとともに、インク噴出口のクリーニングを容易
にすることを目的とするものである。This invention was made to eliminate these drawbacks, and by replacing the conventional integrated nozzles with slit-shaped ink jet ports, it aims to improve the degree of integration of the ink jet ports, and also to improve the cleaning of the ink jet ports. The purpose is to make it easier.
以下図面によつてこの発明を詳細に説明する。第１図は
この発明の一実施例を示す構成斜視図”で、１はスリッ
ト状に形成されたインク噴出口、２ａ、２ｂは前記イン
ク噴出口１を形成する上板および下板、３は前記下板２
ｂ上に接触させて周期的に多数配置された電極、４は前
記インク噴出口１に対向して配置された接地導体、５は
前記接地導体４に沿つて移動する記録紙、６は前記電極
３の選択されたものに高電圧を印加する電源、７はスイ
ッチである。The present invention will be explained in detail below with reference to the drawings. FIG. 1 is a perspective view showing an embodiment of the present invention, in which 1 is a slit-shaped ink jetting port, 2a and 2b are upper and lower plates forming the ink jetting port 1, and 3 is a slit-shaped ink jetting port. Said lower plate 2
b, a large number of electrodes are periodically arranged in contact with each other; 4 is a ground conductor disposed opposite to the ink jet nozzle 1; 5 is a recording paper that moves along the ground conductor 4; 6 is the electrode. 3 is a power supply that applies a high voltage to the selected one, and 7 is a switch.
次に動作を説明する。Next, the operation will be explained.
まず。インク噴出口１にインクを注入し、電極３の選択
された一電極に電源６により１〜４ＫＶの高電圧を印加
し、他の電極３を接地した場合、高電圧を印加された電
極付近のインクはインク噴出口１より噴出し、記録紙５
に付着し記録が行われる。この動作は、複数の電極３を
高電圧を同時に印加した場合も同様に記録が可能である
。したがつて、この動作を連続して行うことにより記録
紙５上に任意の記録画を形成することができる。第２図
はこの発明の他の実施例を示す斜視図で、８はインク噴
出方向に突出して形成した突起であり、スリット状のイ
ンク噴出口１の長辺に、電極３の配列周期と一致して設
けられる。first. When ink is injected into the ink spout 1, a high voltage of 1 to 4 KV is applied to a selected one of the electrodes 3 by the power supply 6, and the other electrode 3 is grounded, the voltage near the electrode to which the high voltage was applied is Ink is ejected from the ink ejection port 1, and the ink is ejected from the recording paper 5.
is attached and recorded. This operation can be similarly recorded even when high voltage is applied to a plurality of electrodes 3 at the same time. Therefore, by performing this operation continuously, any recorded image can be formed on the recording paper 5. FIG. 2 is a perspective view showing another embodiment of the present invention, in which a projection 8 is formed to protrude in the ink jetting direction, and is placed on the long side of the slit-shaped ink jetting port 1 in the same period as the arrangement period of the electrodes 3. It will be established accordingly.
この突起８上に電極３を配置したものである。インク噴
出口１内にインクを注入した時、インクは突起８の先端
まで進出し保持することができる。なお、他の構成は第
１１図と同じである。電極３の任意の一電極に前記高電
圧を印加し、他の電極３を接地した場合、高電圧を印加
した電極の位置する突起８上のインクは、突起８より噴
出し、記録紙５に付着し記録が行われる。The electrode 3 is arranged on this protrusion 8. When ink is injected into the ink jetting port 1, the ink can advance to the tip of the protrusion 8 and be held there. Note that the other configurations are the same as in FIG. 11. When the high voltage is applied to any one of the electrodes 3 and the other electrode 3 is grounded, the ink on the protrusion 8 where the electrode to which the high voltage has been applied is located is ejected from the protrusion 8 and onto the recording paper 5. It is attached and recorded.
この動作を複数電極で同時に連続して行うことにより任
意の記録画を形成することができる。この構成によりイ
ンクの噴出が容易になる。第３図Ａ，ｂはこの発明のさ
らに他の実施例を示す斜視図で、第３図ａはインク噴出
口１を形成する上板２ａの先端が、第２図に示す実施例
の突起８を除いた下板２ｂに比較してインク噴出方向に
突出している実施例てある。Any recorded image can be formed by performing this operation simultaneously and continuously using a plurality of electrodes. This configuration facilitates ink ejection. FIGS. 3A and 3B are perspective views showing still another embodiment of the present invention, and FIG. There is an embodiment in which the lower plate 2b protrudes in the ink jetting direction compared to the lower plate 2b excluding the lower plate 2b.
第３図ｂは上板２ａ，下板２ｂにそれぞれ突起８ａ，８
ｂを設けた場合で、電極３は各突起８ａ，８ｂの一方あ
るいは双方に配置した実施例である。なお、電極３を突
起８ａ，８ｂの双方に配置した場合、上下に対向する一
対の突起は同電位とする。また、第３図Ａ，ｂの各実施
例の動作は第２図の実施例と同様である。Figure 3b shows projections 8a and 8 on the upper plate 2a and lower plate 2b, respectively.
In this embodiment, the electrode 3 is arranged on one or both of the protrusions 8a and 8b. Note that when the electrode 3 is placed on both of the protrusions 8a and 8b, the pair of vertically opposing protrusions are at the same potential. Further, the operation of each embodiment shown in FIGS. 3A and 3B is similar to that of the embodiment shown in FIG.
第４図Ａ，ｂはこの発明のさらに他の実施例を示すイン
ク噴出口１の正面図およびインク噴出口１を形成する下
板２ｂの平面図である。4A and 4B are a front view of an ink jet nozzle 1 and a plan view of a lower plate 2b forming the ink jet nozzle 1, showing still another embodiment of the present invention.
これらの図で、９はインクで、スリット状に形成された
インク噴出口１に保持される。１０は前記インクに対し
て親和性のない材料で形成したコーティング層である。
インク９はコーティング層１０と親和性が悪いため、各
電極３付近に集中して保持することができる。この動作
は上記各実施例と同様である。このように、インク噴出
口１の内面の電極を含まない場合の一部または全部、す
なわち所要ｌ部分をインク９に対し親和性のない材料て
構成することができる。なお、第４図の実施例で上板２
ａ上のコーティング層１０を除去した場合、および上板
２ａ上の全面にコーティング層１０を形成した場合もイ
ンク９は選択的に噴出し記録を行うことができる。In these figures, reference numeral 9 denotes ink, which is held in an ink jet port 1 formed in a slit shape. 10 is a coating layer formed of a material that has no affinity for the ink.
Since the ink 9 has poor affinity with the coating layer 10, it can be concentrated and retained near each electrode 3. This operation is similar to each of the above embodiments. In this way, part or all of the inner surface of the ink ejection port 1 that does not include the electrode, that is, the required portion, can be made of a material that has no affinity for the ink 9. In addition, in the embodiment shown in FIG.
Even when the coating layer 10 on the upper plate 2a is removed and when the coating layer 10 is formed on the entire surface of the upper plate 2a, the ink 9 can be selectively ejected to perform recording.
さらに、電極３付近（第４図ｂの白部分）またはスリッ
ト空隙を隔てて電極３が接着される面と対向する面の電
極３の真上の部分の双方に、インク９に親和性を示す層
を形成すればさらに効率的に、インク９は各電極３付近
に集中せしめることができる。ところで、インク噴出口
１を複数個使用し、各インク噴出口１に異なる色のイン
クを注入し上記記録動作を行わせることにより多色もし
くは総天然色の記録が得られるのはもちろんである。Furthermore, the ink 9 exhibits affinity for both the vicinity of the electrode 3 (white area in FIG. 4b) or the area directly above the electrode 3 on the surface opposite to the surface to which the electrode 3 is bonded across the slit gap. By forming a layer, the ink 9 can be concentrated near each electrode 3 more efficiently. By the way, by using a plurality of ink ejection ports 1, injecting ink of a different color into each ink ejection port 1, and performing the above recording operation, it is of course possible to obtain multicolor or all-natural color recording.
これを図示すれば第５図Ａ，ｂのようになる。ここで、
第５図ａは各色ごとに一走査ラインを記録するもので、
数ラインのメモリを必要とする。また、第５図ｂは同時
に一走査ラインの多色記録を行うものである。また、上
記各実施例においてインクを噴出しない電極の電位の絶
対値は、インクが噴出する臨界電圧の絶対値以下であれ
ば任意に選択できる。This is illustrated in FIGS. 5A and 5B. here,
Figure 5a shows one scanning line recorded for each color.
Requires several lines of memory. Further, in FIG. 5B, multicolor recording of one scanning line is performed at the same time. Further, in each of the above embodiments, the absolute value of the potential of the electrode that does not eject ink can be arbitrarily selected as long as it is equal to or less than the absolute value of the critical voltage at which ink is ejected.
さらに電極３，接地導体４の電位関係は相対的であり、
例えば電極３を接地、接地導体４を高電位としても、同
様の効果がある。そして、接地導体４は必ずしも記録紙
５の背面に配置する必要はなく、記録紙５の前面に配置
してもよい。Furthermore, the potential relationship between the electrode 3 and the ground conductor 4 is relative;
For example, the same effect can be obtained even if the electrode 3 is grounded and the ground conductor 4 is placed at a high potential. The ground conductor 4 does not necessarily need to be placed on the back side of the recording paper 5, but may be placed on the front side of the recording paper 5.
さらに、上記実施例では電極３を突出して配置したがこ
れは上板２ａ，下板２ｂに埋込んで上面がインク噴出口
１の内面と一致するように構成することも可能である。Further, in the above embodiment, the electrode 3 is disposed in a protruding manner, but it can also be configured to be embedded in the upper plate 2a and the lower plate 2b so that the upper surface thereof coincides with the inner surface of the ink ejection port 1.
以上説明したように、この発明は、インク噴出口の形状
をスリット状とし、このスリット状インク噴出口の内面
に接触させて多数の電極を配置したものであり、電極が
スリットを形成する一方の部材上に配置してあるため、
インクが充満しているスリットはひとつであり、スリッ
ト内のインク目詰り確率は低下するとともに、スリット
内のクリーニングが容易に行える利点がある。また、記
録電極をあらかじめ一方の部材上に設けることが可能で
あり、スリットを形成する前に電極を配列しておくこと
が可能であり、配列精度の向上が図れる。As explained above, in the present invention, the shape of the ink jet port is slit-like, and a large number of electrodes are arranged in contact with the inner surface of the slit-shaped ink jet port. Because it is placed on the member,
There is only one slit filled with ink, which has the advantage that the probability of ink clogging in the slit is reduced and the slit can be easily cleaned. Furthermore, it is possible to provide the recording electrodes on one member in advance, and it is possible to arrange the electrodes before forming the slits, thereby improving the arrangement accuracy.
さらに、電極は一方の部材に接触して設けてあるため、
電極自体の強度は必要でなく、電極は蒸着、メッキ等に
よつて薄く形成することが可能なため、電極先端部にお
ける電界集中を図ることがてき、電極先端部を針状にす
ることも不要であり、針状にしたときに不可能である高
密度配列が可能となる。Furthermore, since the electrode is provided in contact with one of the members,
The strength of the electrode itself is not required, and the electrode can be formed thinly by vapor deposition, plating, etc., so it is possible to concentrate the electric field at the electrode tip, and there is no need to make the electrode tip needle-like. This enables high-density arrays that are impossible when made into needles.
また、この発明は、電極対応に突起を設けたものであり
、または、電極付近をインクに対して親和性を示す材料
にしたものであり、インクを電極付近に集中させること
が可能となり、クーロンカの集中が図れ、記録特性を向
上することができる。In addition, this invention provides protrusions corresponding to the electrodes, or uses a material that has affinity for ink near the electrodes, making it possible to concentrate ink near the electrodes, thereby reducing Coulomb filtration. can be concentrated, and the recording characteristics can be improved.
さらに、この発明はインクの噴出方向が鉛直に限定され
ず斜め方向、水平方向等任意に設定できるため、複数の
ヘッドを用いることが容易であり、かつ、電極先端のイ
ンクのぬれをインク静圧により調整できる等々の優れた
利点を有する。Furthermore, in this invention, the direction of ejecting ink is not limited to vertical, but can be set to any diagonal direction, horizontal direction, etc., so it is easy to use multiple heads, and the ink static pressure It has excellent advantages such as being able to be adjusted by
第１図はこの発明の一実施例を示す構成斜視図、第２図
はこの発明の他の実施例を示す構成斜視図、第３図Ａ，
ｂはこの発明のさらに他の実施例を示す斜視略図、第４
図Ａ，ｂはこの発明のさらに他の実施例を示すインク噴
出口の正面図および下板の平面図、第５図Ａ，ｂはこの
発明のさらに他の実施例をそれぞれ示す側断面図である
。FIG. 1 is a perspective view of the structure showing one embodiment of the invention, FIG. 2 is a perspective view of the structure of another embodiment of the invention, and FIG.
b is a schematic perspective view showing still another embodiment of the present invention;
Figures A and b are a front view of an ink jet port and a plan view of a lower plate showing still another embodiment of the invention, and Figures A and b are side sectional views showing still another embodiment of the invention, respectively. be.
Claims (1)
噴出口より噴出して記録紙に付着せしめる静電加速形イ
ンクジェット記録方式のインク記録用ヘッドにおいて、
前記インク噴出口をスリット状に形成し、前記スリット
状のインク噴出口の長辺を構成する上板または下板の少
なくとも一方の内面の外部に接する側に、多数の記録用
の電極を所定の間隔で前記内面に接着させて配置したこ
とを特徴とするインク記録用ヘッド。 ２ スリット状のインク噴出口の長辺に、電極の配列周
期と一致してインク噴出方向の突起を設けたことを特徴
とする特許請求の範囲第１項記載のインク記録用ヘッド
。 ３ スリット状のインク噴出口の内面の電極以外の部分
の一部または全部がインクに対して親和性に無い材質か
らなることを特徴とする特許請求の範囲第１項記載のイ
ンク記録用ヘッド。 ４ インク噴出口の内面の電極近傍部分がインクに親和
性を示す材質からなることを特徴とする特許請求範囲第
１項記載のインク記録用ヘッド。 ５ インク噴出口の内面の電極が接着される面とスリッ
トを介して反対の面の部分がインクに親和性を示す材質
からなることを特徴とする特許請求の範囲第４項記載の
インク記録用ヘッド。[Scope of Claims] 1. In an ink recording head of an electrostatic acceleration type inkjet recording system that applies an electrostatic force to ink and causes the ink to be ejected from an ink jetting port and adhered to recording paper,
The ink jetting port is formed into a slit shape, and a large number of recording electrodes are arranged in a predetermined manner on the inner surface of at least one of the upper plate and the lower plate, which constitutes the long side of the slit-shaped ink jetting port, and is in contact with the outside. An ink recording head characterized in that the ink recording head is adhesively disposed on the inner surface at intervals. 2. The ink recording head according to claim 1, wherein a projection in the ink jetting direction is provided on the long side of the slit-shaped ink jetting port in accordance with the arrangement period of the electrodes. 3. The ink recording head according to claim 1, wherein a part or all of the inner surface of the slit-shaped ink ejection port other than the electrodes is made of a material that has no affinity for ink. 4. The ink recording head according to claim 1, wherein a portion of the inner surface of the ink ejection port near the electrode is made of a material that exhibits affinity for ink. 5. The ink recording device according to claim 4, wherein a portion of the inner surface of the ink ejection port opposite to the surface to which the electrode is bonded through the slit is made of a material that exhibits affinity for ink. head.
Priority Applications (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7809479A JPS6059869B2 (en) | 1979-06-22 | 1979-06-22 | Ink recording head |
| US06/081,337 US4271416A (en) | 1978-10-18 | 1979-10-03 | Slit type ink recording apparatus |
| GB7934469A GB2031344B (en) | 1978-10-18 | 1979-10-04 | Ink recording apparatus |
| NLAANVRAGE7907541,A NL180188C (en) | 1978-10-18 | 1979-10-11 | Ink writing device. |
| FR7925574A FR2439088A1 (en) | 1978-10-18 | 1979-10-15 | SLOT TYPE INK SPRAY RECORDING APPARATUS |
| DE2942233A DE2942233C2 (en) | 1978-10-18 | 1979-10-18 | Color jet recording device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7809479A JPS6059869B2 (en) | 1979-06-22 | 1979-06-22 | Ink recording head |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS564467A JPS564467A (en) | 1981-01-17 |
| JPS6059869B2 true JPS6059869B2 (en) | 1985-12-27 |
Family
ID=13652268
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7809479A Expired JPS6059869B2 (en) | 1978-10-18 | 1979-06-22 | Ink recording head |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6059869B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0446122Y2 (en) * | 1986-11-25 | 1992-10-29 |
Families Citing this family (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56167468A (en) * | 1980-05-30 | 1981-12-23 | Nippon Telegr & Teleph Corp <Ntt> | Ink recording head |
| JPS5768123U (en) * | 1980-10-09 | 1982-04-23 | ||
| JPS5816856A (en) * | 1981-07-24 | 1983-01-31 | Fuji Photo Film Co Ltd | Nozzle head for ink jet |
| JPS598942U (en) * | 1982-07-09 | 1984-01-20 | 東京精密発條株式会社 | Improved sheet winding device |
| JPS5935950A (en) * | 1982-08-23 | 1984-02-27 | Nippon Telegr & Teleph Corp <Ntt> | Ink recorder |
| JPS61146390U (en) * | 1985-03-01 | 1986-09-09 | ||
| KR910004026B1 (en) * | 1985-03-20 | 1991-06-22 | 도오꾜오덴끼 가부시끼가이샤 | Recording electrode for ink dot printer |
| JPS61215060A (en) * | 1985-03-22 | 1986-09-24 | Tokyo Electric Co Ltd | Printing apparatus |
| JPS6356455A (en) * | 1986-08-27 | 1988-03-11 | Tokyo Electric Co Ltd | Printer |
| EP0267782A3 (en) * | 1986-11-10 | 1989-09-27 | Kabushiki Kaisha Toshiba | Ink jet system |
| EP0307151B1 (en) * | 1987-09-11 | 1992-01-22 | Tokyo Electric Co., Ltd. | Printer |
| US5835113A (en) * | 1994-09-22 | 1998-11-10 | Kabushiki Kaisha Toshiba | Ink jet printing apparatus with controlled compression and ejection of colorants in liquid ink |
| JP3394832B2 (en) * | 1995-03-15 | 2003-04-07 | 株式会社東芝 | Ink jet recording device |
| JPH11138773A (en) | 1997-11-10 | 1999-05-25 | Fuji Xerox Co Ltd | Method and device for image forming |
| JP2000006418A (en) | 1998-06-24 | 2000-01-11 | Matsushita Electric Ind Co Ltd | Electrostatic ink jet recorder |
| JP2000117967A (en) | 1998-10-16 | 2000-04-25 | Fuji Photo Film Co Ltd | Ink recording method |
| JP3753289B2 (en) | 1998-10-16 | 2006-03-08 | 富士写真フイルム株式会社 | Inkjet recording method |
| JP2000127410A (en) | 1998-10-27 | 2000-05-09 | Hitachi Ltd | Printer |
| US6428149B1 (en) | 1999-09-22 | 2002-08-06 | Matsushita Electric Industrial Co. Ltd. | Electrostatic ink jet recording apparatus |
| JP2007009192A (en) | 2005-05-31 | 2007-01-18 | Fujifilm Holdings Corp | Non-spherical polymer fine particle, method for producing the same, and composition containing the fine particle |
-
1979
- 1979-06-22 JP JP7809479A patent/JPS6059869B2/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0446122Y2 (en) * | 1986-11-25 | 1992-10-29 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS564467A (en) | 1981-01-17 |
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