JPS58114965A - Ink jet head - Google Patents

Ink jet head

Info

Publication number
JPS58114965A
JPS58114965A JP21289681A JP21289681A JPS58114965A JP S58114965 A JPS58114965 A JP S58114965A JP 21289681 A JP21289681 A JP 21289681A JP 21289681 A JP21289681 A JP 21289681A JP S58114965 A JPS58114965 A JP S58114965A
Authority
JP
Japan
Prior art keywords
ink
elastic member
outer chamber
chamber
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
JP21289681A
Other languages
Japanese (ja)
Inventor
Tamotsu Kojima
保 小島
Kenji Akami
研二 赤見
Seiji Yamamori
山森　清司
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co 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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP21289681A priority Critical patent/JPS58114965A/en
Publication of JPS58114965A publication Critical patent/JPS58114965A/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
    • B41J2/14—Structure thereof only for on-demand ink jet heads
    • B41J2/14201—Structure of print heads with piezoelectric elements
    • B41J2/14298—Structure of print heads with piezoelectric elements of disc 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
    • B41J2202/00—Embodiments of or processes related to ink-jet or thermal heads
    • B41J2202/01—Embodiments of or processes related to ink-jet heads
    • B41J2202/02—Air-assisted ejection

Landscapes

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

Abstract

PURPOSE:To obtain an ink jet head caused to have an most suitably constructed multi-nozzle and capable of improving recording characteristics with a small ink groove by a construction wherein an elastic member is provided in such a manner that it makes contact with ink in an external chamber to allow a pressure wave unused for jetting ink drops to be absorbed into the elastic member. CONSTITUTION:A ring-shaped elastic member (for instance, fluoro rubber) 29 is installed inside an external chamber 25 in such a manner as to make the rubber contact ink. Circular, bar and many other shapes other than the ring shape are applicable to the extent that the elastic member can be in contact with ink. In so doing, a pressure wave which will not contribute the formation of an ink drop is absorbed into the elastic member 29 and damped. Thus the jetting of ink drops is carried out conveniently, whereas the recording characteristics are by far improved. By providing the elastic members 29, 29a, 29b in the external chamber 25 of a double chamber ink jet head, excellent recording characteristics become obtainable even with small ink grooves and it is possible to provide the ink jet head with a multi-nozzle construction.

Description

【発明の詳細な説明】 本発明は電気機械変換素子によシインク液滴を２　。[Detailed description of the invention] The present invention uses an electromechanical transducer to generate two ink droplets.

噴射して記録を行なうインクジェットヘッドに関する。The present invention relates to an inkjet head that performs recording by ejecting water.

従来よりインク液滴を噴射し記録を行なう方式は１種々
提案さｎているが、特にオン・デマンド方式は、装置が
簡易である。カラー記録が容易である等の多くの利点を
有するため１幅広い研究が行なわれている。Various methods have been proposed in the past for recording by ejecting ink droplets, but the on-demand method has a particularly simple device. Since it has many advantages such as easy color recording, 1 a wide range of research is being conducted.

オンデマンド方式のインクジェットヘッドの一例を第１
図ａ、ｂに示す。第１図ａはこのインクジェットヘッド
の側断面図であって、インク液滴１は電気信号源２から
の電気入力に応じて機械振動を行なう電気機械変換素子
３によ多制御される。An example of an on-demand inkjet head is shown below.
Shown in Figures a and b. FIG. 1a is a side cross-sectional view of this ink jet head, in which an ink droplet 1 is controlled by an electromechanical transducer 3 which performs mechanical vibration in response to an electrical input from an electrical signal source 2. In FIG.

インクジェットヘッド４は２分割されたインク室、すな
わち１つの外方の室６と１つの内方の室６とを有し、こ
れら両室６，６が結合通路７により互いに結合している
。インク流入通路８は外方の室６に通じ、外方の室６に
は噴射ノズル９が設けである。インク液滴１の噴射は、
電気機械変換素子３に電気信号を加え、内方の室６の容
積を増減させ、外方の室６のインクを結合通路７を介し
て内３ページ 方の室６に流入させ、その後加圧し１．再び結合通路７
．外方の室６を通して結合通路７と対向する噴射ノズル
９からインク液滴１として噴射する。The inkjet head 4 has an ink chamber divided into two, namely, one outer chamber 6 and one inner chamber 6, and these two chambers 6, 6 are connected to each other by a connecting passage 7. The ink inlet passage 8 leads to the outer chamber 6, and the outer chamber 6 is provided with a spray nozzle 9. The ejection of ink droplet 1 is
An electrical signal is applied to the electromechanical transducer 3 to increase or decrease the volume of the inner chamber 6, causing the ink in the outer chamber 6 to flow into the inner chamber 6 through the coupling passage 7, and then pressurizing it. 1. Connecting passage 7 again
．． The ink droplets 1 are ejected through the outer chamber 6 from the ejection nozzle 9 facing the coupling channel 7 .

第１図すはこのインクジェットヘッドの正面図を示し、
外方の室６が結合通路７の周囲に設けられている様子を
示している。外方の室６の周囲には、特に容積を太きく
するため、インク溝６′を形成しており、インク供給を
円滑にして記録を良好に行なわせるようにしている。こ
のインク溝６′はまた他の役割もある。すなわち、内方
の室６で加圧されたインクは、圧力波として結合通路７
、外方の室６を伝播し、噴射ノズル９に到達してインク
液滴１を噴射させるが、結合通路７を通過後の圧力波は
、外方の室６に伝播するときインク６′方向に伝播する
ものも無視できず、このような圧力波は速やかに減衰さ
せ、次のインク液滴が吐出するときに影響を与えないよ
うにするのが好ましいので、インク溝５′によって、こ
のような好ましくない圧力波を吸入し、この部分で熱エ
ネルギーとして変換、消失させ、記録特性の低下を防い
でい・特開昭５８−１１４９６５　ｒ２） る。Figure 1 shows a front view of this inkjet head.
The outer chamber 6 is shown arranged around the coupling channel 7. An ink groove 6' is formed around the outer chamber 6 in order to increase the volume in particular, so that ink can be supplied smoothly and recording can be performed well. This ink groove 6' also has other roles. That is, the ink pressurized in the inner chamber 6 flows into the coupling passage 7 as a pressure wave.
, propagates through the outer chamber 6 and reaches the ejection nozzle 9 to eject the ink droplet 1, but the pressure wave after passing through the coupling passage 7 is in the direction of the ink 6' when propagating to the outer chamber 6. It is desirable to quickly attenuate such pressure waves so that they do not affect the ejection of the next ink droplet. This absorbs undesirable pressure waves, converts them into thermal energy in this area, and dissipates them, thereby preventing deterioration of recording characteristics (Japanese Patent Application Laid-Open No. 58-114965 r2).

ところで、このような２室構造を有するインクジェット
ヘッドは、いわゆる１室構造のインクジェットヘッドに
比較して、ヘッド構造が複雑となる。このため、噴射ノ
ズルを複数個並べ、高密度化を必要とするマルチノズル
ヘッドに際しては。Incidentally, an inkjet head having such a two-chamber structure has a more complicated head structure than an inkjet head having a so-called one-chamber structure. For this reason, when creating a multi-nozzle head that requires high density by arranging multiple injection nozzles.

高度のヘッド製作９組立技術を必要とされる。また、高
密度化のため当然噴射ノズル間隔は狭くなり、シたがっ
て各噴射ノズルに対して、容積の大きいインク溝６′を
設けることが不可能となる。このため、インク溝６′の
容積は小さくならざるを得す、インク溝６′の効果が発
揮できなくなり、インク液滴の噴射の際、インク溝に伝
播する圧力波の影響がより強くあられれ、記録特性が著
しく低下する。Advanced head manufacturing and assembly techniques are required. Furthermore, as the density increases, the spacing between the ejecting nozzles naturally becomes narrower, and therefore, it becomes impossible to provide an ink groove 6' with a large volume for each ejecting nozzle. Therefore, the volume of the ink groove 6' has to be reduced, and the effect of the ink groove 6' cannot be exhibited, and the influence of pressure waves propagating to the ink groove becomes stronger when ink droplets are ejected. , the recording characteristics deteriorate significantly.

本発明は１以上のような問題を解決するためになされた
もので、外方の室内のインクと弾性部材とを接触させる
ことにより、インク溝が小さい場合においても良好な記
録特性の得られるインクジェットヘッドを提供すること
を目的とする。The present invention has been made in order to solve one or more of the problems, and provides an inkjet that can obtain good recording characteristics even when the ink groove is small by bringing the ink in the outer chamber into contact with an elastic member. The purpose is to provide the head.

６ベー７′ 以下に本発明の一実施例を図面を用いて説明する。6be 7' An embodiment of the present invention will be described below with reference to the drawings.

第２図ａ、ｂは本発明の一実施例を示す側断面図および
正面図であって、電気信号源２１からの電気入力によっ
て電気機械変換素子２２に機械振動を起させ、内方の室
２３の容積を増減させる。FIGS. 2a and 2b are a side sectional view and a front view showing an embodiment of the present invention, in which mechanical vibration is caused in the electromechanical transducer 22 by electrical input from the electrical signal source 21, and the inner chamber is Increase or decrease the volume of 23.

内方の室２３の容積を増加させた時には、インク流入通
路２４から外方の室２６に供給されるインクを、結合通
路２６を介して内方の室２ｊに流入させ、その後、内方
の室２３の容積を減少させた、時には、再び結合通路２
６．外方の室２６を通して、ノズル形成板２７の結合通
路２６と対向する位置に形成された噴射ノズル２８から
インクを液滴として噴射するのである。When the volume of the inner chamber 23 is increased, the ink supplied from the ink inflow passage 24 to the outer chamber 26 is caused to flow into the inner chamber 2j via the coupling passage 26, and then is injected into the inner chamber 2j. Reduced volume of chamber 23, sometimes again connecting passage 2
6. Ink is ejected as droplets through the outer chamber 26 from an ejection nozzle 28 formed at a position facing the coupling passage 26 of the nozzle forming plate 27.

ところで１本実施例においては、外方の室２６の内部に
、リング状の弾性部材２９を、インクと接するように装
着しである。この弾性部材２９は。In this embodiment, a ring-shaped elastic member 29 is installed inside the outer chamber 26 so as to be in contact with the ink. This elastic member 29 is.

リング状以外に２球状や棒状のもの等、外方の室２６内
のインクと接するものであれば種々の形状のものが適用
できる。In addition to the ring shape, various shapes can be used as long as it comes into contact with the ink in the outer chamber 26, such as a bispherical shape or a rod shape.

６ベ二 このように、外方の室２６内のインクと接するように弾
性部材を設置することによって、インク液滴の噴射時、
外方の室２６にインク液滴の形成に寄与しない圧力波が
到達しても１弾性部材２９にて圧力波は吸収されて減衰
することになる。本実施例では１弾性部材２９は、外方
の室２６の全周にわたって存在している。このため、イ
ンク液滴の噴射時には、前のインク液滴噴射時の圧力波
の影響は無視できる程に弱まり、インク液滴の噴射は良
好に行なわれ、記録特性は大幅に′向上する。By installing the elastic member in contact with the ink in the outer chamber 26 in this way, when ink droplets are ejected,
Even if a pressure wave that does not contribute to the formation of ink droplets reaches the outer chamber 26, the pressure wave is absorbed by the elastic member 29 and attenuated. In this embodiment, one elastic member 29 exists over the entire circumference of the outer chamber 26. Therefore, when an ink droplet is ejected, the influence of the pressure wave during the previous ink droplet ejection is weakened to the point where it can be ignored, the ink droplet is ejected favorably, and the recording characteristics are greatly improved.

第３図ａ、ｂは本発明の他の実施例を示す側断面図及び
正面図であって、内方の室２３と外方の室２６とが複数
個（図では２個）の結合通路２６１Ｌ　。3a and 3b are a side sectional view and a front view showing another embodiment of the present invention, in which the inner chamber 23 and the outer chamber 26 are connected to a plurality of (two in the figure) connecting passages. 261L.

２６ｂを介して分割されておシ、噴射ノズル２８に通ず
るインク通路上に、結合通路２６Ｊ２６ｂが位置してい
る。外方の室２６には、４個の球状の弾性部材２９１Ｌ
　、２９ｂがインクと接するように設置されている。こ
のようなイ・ンクジェットヘッドにおいても、インク液
滴を噴射する際、インク液滴形成に寄与しない圧力波が
外方の室２６に７ペー〕′ 伝播しても、弾性部材２ｓａ、２９’ｂが圧力波を吸収
し、減衰させるので、イジク液滴の形成は良好に行なわ
れ、記録特性は大幅に向上する。A coupling passage 26J26b is located on the ink passage that is divided via the ink passage 26b and leads to the injection nozzle 28. The outer chamber 26 includes four spherical elastic members 291L.
, 29b are installed so as to be in contact with the ink. Even in such an inkjet head, when ejecting ink droplets, even if pressure waves that do not contribute to the formation of ink droplets propagate to the outer chamber 26, the elastic members 2sa, 29' Since b absorbs and attenuates pressure waves, the formation of Idzhik droplets is carried out well and the recording properties are significantly improved.

このように、２室構造のインクジェットヘッドの外方の
室２６に弾性部材２９，２９ａ、２９ｂを設置するこメ
により、インク溝が小さくても良好な記録特性が得られ
る。なお１弾性部材２９゜２９＆　、２９ｂとして１例
えば、フッ素ゴム、シリコンゴム等により、その結果が
確認された。In this way, by installing the elastic members 29, 29a, and 29b in the outer chamber 26 of the two-chamber structured inkjet head, good recording characteristics can be obtained even if the ink groove is small. The results were confirmed using, for example, fluororubber, silicone rubber, etc. as the elastic members 29°, 29&, 29b.

第４図ａ、ｂは本発明の第３の実施例を示す側断面図及
び正面図であり、外方の室２６の少なくとも一側壁を弾
性部材２９′で形成した例である。FIGS. 4a and 4b are a side sectional view and a front view showing a third embodiment of the present invention, in which at least one side wall of the outer chamber 26 is formed of an elastic member 29'.

図では、外方の室２°６の外周を弾性部材２９′で形成
しているが、インクジェットヘッドのボディ３０に外方
の室２６をまず形成し、その後ボディ３０にエポキシ樹
脂のようなものからなるコーティング部材や接着部材を
流し込むことによって、弾性部材２９′を形成しておシ
、弾性部材２９′はボディ３ｏにしっかり固定されてい
る。このような構造においても、インク液滴を噴射する
際、イン特開昭５８−１１４９６５　（３） 、り液滴形成に寄与しない圧力波が外方の室２６に伝播
しても１弾性部材２９′により圧力波を吸収することが
でき、インク液滴の形成は良好に行なわれる。In the figure, the outer circumference of the outer chamber 2°6 is formed with an elastic member 29', but the outer chamber 26 is first formed in the body 30 of the inkjet head, and then the body 30 is made of a material such as epoxy resin. The elastic member 29' is formed by pouring a coating member or an adhesive member consisting of the above, and the elastic member 29' is firmly fixed to the body 3o. Even in such a structure, when ejecting ink droplets, even if pressure waves that do not contribute to droplet formation propagate to the outer chamber 26, the elastic member 29 ' can absorb pressure waves, and the formation of ink droplets is performed well.

第６図ａ、ｂは本発明の第４の実施例を示す側断面図お
よび正面図であり、インクジェットヘッドの外方の室２
６をボディ３ｏと異なる別部品の弾性部材２９′で構成
している。ボディ３ｏは、内方の室２３でインクが十分
加圧されるように剛体壁である必要から、一般に金属材
料、ガラス、セラミック等の硬い材料で形成される。外
方の室２６は、これと比較して弾性を有する材料の方が
インク圧力波の吸収には適合がよい。弾性部材２９′は
１機械加工あるいは成型により所望の外方の室２５を形
成できる。ボディ３ｏと弾性部材２９′は、接着等によ
゛り強固に結合できる。このように、外方の室２５全体
をほぼ弾性部材２９′で形成することによシ、インク液
滴の噴射に寄与しない圧力波を、吸入することが十分性
なえ、良好なインク液滴の形成ができる〇 ９、−ｍ；゛ 第６図ａ、ｂは本発明の第６の実施例を示す側断面図お
よび正面図であり、噴射ノズル２８．２８’を複数個並
べた例である。このようなマルチノズル化においては、
噴射ノズル２８．２Ｂ’、　　・・・・・・の相互の間
隔は太きくとれず、外方の室２６が小さくなり、従来の
構造ではインク液滴の噴射に寄与しない圧力波の影響が
強くあられれるのであるが。6a and 6b are a side sectional view and a front view showing a fourth embodiment of the present invention, in which the outer chamber 2 of the inkjet head
6 is constituted by an elastic member 29' which is a separate part different from the body 3o. Since the body 3o needs to have a rigid wall so that the ink can be sufficiently pressurized in the inner chamber 23, it is generally made of a hard material such as a metal material, glass, or ceramic. In contrast, the outer chamber 26 is made of an elastic material that is better adapted to absorb ink pressure waves. The elastic member 29' can be machined or molded to form the desired outer chamber 25. The body 3o and the elastic member 29' can be firmly connected by adhesive or the like. In this way, by forming the entire outer chamber 25 substantially from the elastic member 29', pressure waves that do not contribute to the ejection of ink droplets can be sucked in sufficiently, resulting in good ink droplet formation. Figures 6a and 6b are side sectional views and front views showing the sixth embodiment of the present invention, in which a plurality of injection nozzles 28, 28' are arranged. be. In such a multi-nozzle system,
The mutual spacing between the ejection nozzles 28.2B', . Hail!

本実施例のように１弾性部材２９′で外方の室２９＃を
形成すると、この好ましくない圧力波を十分吸収でき、
噴射ノズル２６．２６’、・・・・・・の相互の間隔を
極めて近接することが可能となり、高密度化の必要なマ
ルチノズルにおいて十分効果が発揮できる。If the outer chamber 29# is formed by one elastic member 29' as in this embodiment, this undesirable pressure wave can be sufficiently absorbed.
It becomes possible to make the mutual spacing of the injection nozzles 26, 26', .

以上説明してきたように、本発明のインクジェットヘッ
ドは、外方の室の内部のインクと接するような弾性部材
を有するものであるため、インク液滴の噴射に使用され
ない圧力波は弾性部材に吸収されることになり、インク
溝が小さくなっても記録特性を大幅に向上させることが
でき、マルチノズル化にも好適である。As explained above, since the inkjet head of the present invention has an elastic member that comes into contact with the ink inside the outer chamber, pressure waves that are not used to eject ink droplets are absorbed by the elastic member. Therefore, even if the ink groove becomes smaller, the recording characteristics can be greatly improved, and it is also suitable for multi-nozzle configuration.

１〇　二10　2

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

第１図ａ、ｂは従来のインクジェットヘッドを示す側断
面図および正面図、第２図ａ、ｂは本発明の・インクジ
エツトベッド９一実施例を示す側断面図および正面図、
第３図〜第６図ａ、ｂは本発明の他の各実施例を示す側
断面図および正面図である。 ２１・・・・・・電気信号源、２２・・・・・・電気機
械変換素子、２３−・・・−内方の室、２４，２４ａ、
２４ｂ。 ２４′・・・・・・インク流入通路、２６．２５’・・
・・・・外方の室＆２６．２４３１Ｌ　、２６ｂ・・・
・・・結合通路、２７・・・・・・ノズル形成板、２８
・・・・・・噴射ノズル、２９゜２９１Ｌ　、　２９ｂ
　、　２９′、　２ｃｙ−・ｙ−・弾性部材、　３０・
・・・・・ボディー。 代理人の氏名　弁理士　中　尾　敏　男　ほか１名第１
図 ４ （７２１（ｂ） 第２１！１ ６ （（１＞　　　　　　（ｈ） 第３図 第４図 （（１）　　　　　　（ｂ）1A and 1B are a side sectional view and a front view showing a conventional inkjet head, FIGS. 2A and 2B are a side sectional view and a front view showing an embodiment of the inkjet bed 9 of the present invention,
3 to 6 a and b are side sectional views and front views showing other embodiments of the present invention. 21... Electric signal source, 22... Electromechanical conversion element, 23-- Inner chamber, 24, 24a,
24b. 24'...Ink inflow passage, 26.25'...
...Outer chamber &26.2431L, 26b...
... Connection passage, 27 ... Nozzle forming plate, 28
...Injection nozzle, 29°291L, 29b
, 29', 2cy-・y-・elastic member, 30・
·····body. Name of agent: Patent attorney Toshio Nakao and 1 other person No. 1
Figure 4 (721(b) 21!1 6 ((1> (h) Figure 3 Figure 4 ((1) (b)

Claims (1)

【特許請求の範囲】 （１）電気機械変換素子が設けられた内方の室と。 前記内方の室に結合通路を介して結合された外方の室と
、前記外方の室の内部のインクに接する弾性部材とを有
することを特徴とするインクジェットヘッド。 ＠）弾性部、材が、外方の室の内部に設置されているこ
とを特徴とする特許請求の範囲第１項記載のインクジェ
ットヘッド。 （３）弾性部材が、外方の室を形成子る少なくとも一側
壁を構成することを特徴とする特許請求の範囲第１項記
載のインクジェットヘッド。 （４）外方の室が、複数個並設されていることを特徴と
する特許請求の範囲第１項記載のインクジェットヘッド
０[Claims] (1) An inner chamber in which an electromechanical transducer is provided. An inkjet head comprising: an outer chamber coupled to the inner chamber via a coupling passage; and an elastic member in contact with ink inside the outer chamber. @) The inkjet head according to claim 1, wherein the elastic portion and the material are installed inside the outer chamber. (3) The inkjet head according to claim 1, wherein the elastic member constitutes at least one side wall forming an outer chamber. (4) The inkjet head 0 according to claim 1, characterized in that a plurality of outer chambers are arranged in parallel.
JP21289681A 1981-12-28 1981-12-28 Ink jet head Pending JPS58114965A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP21289681A JPS58114965A (en) 1981-12-28 1981-12-28 Ink jet head

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP21289681A JPS58114965A (en) 1981-12-28 1981-12-28 Ink jet head

Publications (1)

Publication Number Publication Date
JPS58114965A true JPS58114965A (en) 1983-07-08

Family

ID=16630057

Family Applications (1)

Application Number Title Priority Date Filing Date
JP21289681A Pending JPS58114965A (en) 1981-12-28 1981-12-28 Ink jet head

Country Status (1)

Country Link
JP (1) JPS58114965A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2868966A1 (en) * 2004-04-19 2005-10-21 Brice Lopez DEVICE FOR PRODUCING MICRO-DROPS BY EJECTING LIQUID AND METHOD OF MAKING SUCH A DEVICE

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5178135A (en) * 1974-12-28 1976-07-07 Casio Computer Co Ltd INKUFUN SHASOCHI
JPS54116232A (en) * 1978-03-01 1979-09-10 Ricoh Co Ltd Ink jet head
JPS555870A (en) * 1978-06-30 1980-01-17 Oki Electric Ind Co Ltd Ink jet head of impulse system
JPS5571569A (en) * 1978-11-22 1980-05-29 Fujitsu Ltd Ink-jet recording device

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5178135A (en) * 1974-12-28 1976-07-07 Casio Computer Co Ltd INKUFUN SHASOCHI
JPS54116232A (en) * 1978-03-01 1979-09-10 Ricoh Co Ltd Ink jet head
JPS555870A (en) * 1978-06-30 1980-01-17 Oki Electric Ind Co Ltd Ink jet head of impulse system
JPS5571569A (en) * 1978-11-22 1980-05-29 Fujitsu Ltd Ink-jet recording device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2868966A1 (en) * 2004-04-19 2005-10-21 Brice Lopez DEVICE FOR PRODUCING MICRO-DROPS BY EJECTING LIQUID AND METHOD OF MAKING SUCH A DEVICE
WO2005107946A3 (en) * 2004-04-19 2006-02-02 Brice Lopez Device for the production of microdroplets by means of liquid ejection and method of producing one such device

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