JPS5881171A - Ink jet recorder - Google Patents

Ink jet recorder

Info

Publication number
JPS5881171A
JPS5881171A JP17992681A JP17992681A JPS5881171A JP S5881171 A JPS5881171 A JP S5881171A JP 17992681 A JP17992681 A JP 17992681A JP 17992681 A JP17992681 A JP 17992681A JP S5881171 A JPS5881171 A JP S5881171A
Authority
JP
Japan
Prior art keywords
ink
recording paper
nozzle
ink jet
electrode
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
JP17992681A
Other languages
Japanese (ja)
Inventor
Takuro Sekiya
卓朗 関谷
Yutaka Ebi
海老　豊
Masanori Horiie
正紀 堀家
Masaaki Tachiki
立木　雅彰
Tatsuya Furukawa
達也 古川
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.)
Ricoh Co Ltd
Original Assignee
Ricoh 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 Ricoh Co Ltd filed Critical Ricoh Co Ltd
Priority to JP17992681A priority Critical patent/JPS5881171A/en
Priority to DE19823238821 priority patent/DE3238821A1/en
Publication of JPS5881171A publication Critical patent/JPS5881171A/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
    • B41J2/015—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)

Abstract

PURPOSE:To provide an ink jet recorder of multi-electric field on-demand type having its control electrodes in the internal wall of its ink jet nozzle which is stable in atomization of ink and easy to manufacture by such an arrangement wherein said jet nozzle is composed of an insulation body made of photosensitive glass. CONSTITUTION:Rectangular grooves are formed in an insulation body 12 made of photosensitive glass by utilizing etching and control electrodes 14 are formed in these grooves and then multiple ink nozzles 13 are formed by fixing an insulating plate 11 to the upper surface of the insulation body. The control electrode 14 is caused to protrude in the direction of a recording paper 20 and an accelerating electrode 40 is provided between a head 10 and the recording paper 20 and at the same time it is arranged so that the distance between the head 10 and the recording paper 20 can be made larger by providing a bias electrode 30 at the back of the recording paper 20. Since the top end of the control electrode 14 is independent from each other, the ink nozzle is capable of generating stable particles of ink as compared with a conventional slit-like nozzle.

Description

【発明の詳細な説明】 １、本発明は、電界オンデマンド型のインクジェット記
録装置に関する。DETAILED DESCRIPTION OF THE INVENTION 1. The present invention relates to an electric field on-demand type ink jet recording apparatus.

電界を用いてインクを飛翔させるインクジェット記録装
置は既に提案されているが、例えば、実公昭５４−１９
８７４号公報に記載されているインクジェット記録装置
は、ノズルを使用し、該ノズルの先端部に電界をかける
ようにしているため、電界の集中が大きく、効率はよい
が、その反面、マルチ化が困難であり、また、特開昭５
６−１７０号公報或いは特開昭５６−４２６６４号公報
に記載されたインクジェット記録装置は、単一のインク
噴射用のスリ、ットを有し、該スリット内に多数の制御
電極を配設するよ・うにしているため、ノズルを使用せ
ず、マルチ化が容易になっているが、その反面、電界の
集中が望めず、効率が低く、史には、スリットの間隔と
スリットの幅によっては飛翔インクの粒子化が不安定に
なる等の欠点があった。Inkjet recording devices that use electric fields to fly ink have already been proposed; for example,
The inkjet recording device described in Publication No. 874 uses a nozzle and applies an electric field to the tip of the nozzle, so the electric field is highly concentrated and efficient, but on the other hand, it is difficult to multiply. It is difficult and also
The inkjet recording device described in Japanese Patent Application Laid-open No. 6-170 or Japanese Patent Application Laid-Open No. 56-42664 has a single slit for ejecting ink, and a large number of control electrodes are arranged within the slit. This makes multiplication easier without the use of nozzles, but on the other hand, it is difficult to concentrate the electric field, resulting in low efficiency. However, there were drawbacks such as unstable particle formation of the flying ink.

本発明は、上述のごとき従来技術の欠点を解消し、粒子
化が安定で、かつ、製作容易なマルチ電界オンデマンド
型インクジェット記録装置を提供しようとするものであ
る。The present invention aims to solve the above-mentioned drawbacks of the prior art, and to provide a multi-electric field on-demand type inkjet recording device that has stable particle formation and is easy to manufacture.

第１図及び第２図は、それぞれ本発明によるインクジェ
ット記録装置のヘッド部の実施例を示す正面図で、図中
、世はインクジェットヘッド部、１１及び１２はインク
噴射口１３を形成するだめの絶縁部材、１４はインク噴
射口１３の壁面に設けられた制御電極で、第１図に示し
た実施例は、感元性ガラスの絶縁体１２にエツチングを
利用して矩形の溝を形成し、次いで、該溝の中に制御電
極１４を形成し、その上部に絶縁板１１を載せて或いは
接着して多数個のインク噴射口１３を形成したものであ
り、また、第２図に示した実施例は、プリント板１１′
　　上に制御電極１４のパターンを形成し、その上に矩
形の溝を形成した感光性ガラスの絶縁体１２を設けたも
のである。1 and 2 are front views showing embodiments of the head section of an inkjet recording apparatus according to the present invention, respectively. The insulating member 14 is a control electrode provided on the wall of the ink jet port 13. In the embodiment shown in FIG. Next, a control electrode 14 is formed in the groove, and an insulating plate 11 is placed or glued on top of the control electrode 14 to form a large number of ink jet ports 13. For example, printed board 11'
A control electrode 14 pattern is formed thereon, and a photosensitive glass insulator 12 on which a rectangular groove is formed is provided.

第３図は、本発明の動作原理を説明するための図で、図
中、世はヘッド部、１１．１２は絶縁体、１３はインク
噴射口、１４は制御電極、加は記録紙、加はバイアス電
極で、制御電極１４は、図示のように、記録紙頷の方へ
突出するように構成されており、各制御電極１４の先端
部のインクにはバイアス電圧によってインク滴が飛び出
さない程度の電界が印加されており、制御電極１４にパ
ルスが印加された時にインク滴１５が飛び出すようにな
っている。なお、インク滴１５の大きさは、１パルス信
号のパルス幅又は撮幅を変えることによって変えること
ができる。FIG. 3 is a diagram for explaining the operating principle of the present invention. In the figure, 11 and 12 are insulators, 13 is an ink jet port, 14 is a control electrode, and 1 is a recording paper, and 14 is a control electrode. is a bias electrode, and the control electrodes 14 are configured to protrude toward the recording paper nozzle as shown in the figure, and the bias voltage prevents ink droplets from ejecting into the ink at the tip of each control electrode 14. A certain electric field is applied so that when a pulse is applied to the control electrode 14, an ink droplet 15 is ejected. Note that the size of the ink droplet 15 can be changed by changing the pulse width or imaging width of one pulse signal.

第４図は、上述のごとき原理に基づいて構成されたイン
クジェット記録装置の一例を示す要部構成図であるが、
この実施例は、制御電極１４を記録紙加の方向へ突出さ
せ、また、ヘッド部１０と記録紙初の間に加速型′＃Ａ
４０を設け、更には、記録紙加の裏面にバイアス電極Ｉ
を設け、もって、ヘッド部Ｗと記録紙顆間の距離を大き
くとれるようにしている。FIG. 4 is a diagram showing the main parts of an example of an inkjet recording device constructed based on the above-mentioned principle.
In this embodiment, the control electrode 14 is made to protrude in the direction of adding the recording paper, and the acceleration type '#A
40, and furthermore, a bias electrode I is provided on the back side of the recording paper.
is provided, thereby allowing a large distance between the head portion W and the recording paper condyle.

第５図は、本発明の更に他の実施例を示すヘッド部正面
図で、例えば、第１図に示した実施例の矩形溝の上部を
連通させ、制御電極１４が配設されている部分のみ分離
するようにしたので、このようにしても、各制御電極の
先端部間を分離できることは容易に理解できよう。FIG. 5 is a front view of a head showing still another embodiment of the present invention, for example, a portion where the upper part of the rectangular groove of the embodiment shown in FIG. It is easy to understand that even in this case, the tips of the control electrodes can be separated.

以上の説明から明らかなように、本発明によると、イン
ク滴形成箇所すなわち制御電極の先端部が相互に独立し
ているので、従来のインク滴形成箇所が液体で連通して
いるものすなわちインク噴射口がスリット状のものに比
して安定した粒子を得ることができ、しかも、インク噴
射口を加工性の良い感光性ガラスを用いて形成するよう
にしたので、精度のよいインク噴射口を容易に形成する
ことができる。As is clear from the above description, according to the present invention, the ink droplet formation points, that is, the tips of the control electrodes are independent from each other, so that the conventional ink droplet formation points are in fluid communication with each other, that is, ink jetting. It is possible to obtain more stable particles than with a slit-shaped opening, and since the ink jetting port is made of photosensitive glass, which is easy to process, it is easy to create a highly accurate ink jetting port. can be formed into

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

第１図及び第２図は、それぞれ本発明の実施例を示すヘ
ッド部正面図、第３図は、本発明の動作原理を説明する
ための要部構成図、第４図は、本発明の一実施例を示す
要部構成図、第５図は、本発明の更に他の実施例を示す
ヘッド部正面図である０ １０・・・ヘッド部、１１・・感光性ガラスの絶縁体、
１２・絶縁体、１３・・インク噴射口、１４・・・制御
電極、加・・記録紙、頷　バイアス電極、４０・・・加
速電極。 １１１３図 Ｉ1 and 2 are front views of the head showing an embodiment of the present invention, FIG. 3 is a configuration diagram of main parts for explaining the operating principle of the present invention, and FIG. 4 is a front view of the head portion showing an embodiment of the present invention. FIG. 5 is a main part configuration diagram showing one embodiment. FIG. 5 is a front view of a head part showing still another embodiment of the present invention.
12. Insulator, 13.. Ink jet port, 14.. Control electrode, addition.. Recording paper, nodding bias electrode, 40.. Accelerating electrode. 1113Figure I

Claims (1)

【特許請求の範囲】[Claims] 電界でインクを飛翔させるインクジェット記録装置であ
って、各インク噴射口が流体で連通している複数のイン
ク噴射口を有し、該噴射口が絶縁体で構成されかつ該噴
射口の内壁に少なくとも１つの制御電極を肩するインク
ジェット記録装置において、前記インク噴射口を感光性
ガラスの絶縁体で構成したことを特徴とするインクジェ
ット記録装置。An inkjet recording device that ejects ink using an electric field, the inkjet recording device having a plurality of ink ejection ports each communicating with a fluid, the ejection ports being made of an insulator, and having at least one ink on the inner wall of the ejection port. An inkjet recording device having one control electrode, characterized in that the ink jetting port is made of a photosensitive glass insulator.
JP17992681A 1981-10-20 1981-11-10 Ink jet recorder Pending JPS5881171A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP17992681A JPS5881171A (en) 1981-11-10 1981-11-10 Ink jet recorder
DE19823238821 DE3238821A1 (en) 1981-10-20 1982-10-20 Ink jet printer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP17992681A JPS5881171A (en) 1981-11-10 1981-11-10 Ink jet recorder

Publications (1)

Publication Number Publication Date
JPS5881171A true JPS5881171A (en) 1983-05-16

Family

ID=16074334

Family Applications (1)

Application Number Title Priority Date Filing Date
JP17992681A Pending JPS5881171A (en) 1981-10-20 1981-11-10 Ink jet recorder

Country Status (1)

Country Link
JP (1) JPS5881171A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63239061A (en) * 1986-11-14 1988-10-05 Matsushita Electric Ind Co Ltd Ink jet recording apparatus
EP0366498A2 (en) * 1988-10-28 1990-05-02 Oki Electric Industry Co., Ltd. Method of fabricating a biasing plate spring for a wire-dot print head
EP0829356A2 (en) * 1996-09-13 1998-03-18 Seiko Instruments Inc. Ink jet recording apparatus
EP0855280A2 (en) * 1997-01-28 1998-07-29 Seiko Instruments Inc. Record head

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63239061A (en) * 1986-11-14 1988-10-05 Matsushita Electric Ind Co Ltd Ink jet recording apparatus
EP0366498A2 (en) * 1988-10-28 1990-05-02 Oki Electric Industry Co., Ltd. Method of fabricating a biasing plate spring for a wire-dot print head
EP0829356A2 (en) * 1996-09-13 1998-03-18 Seiko Instruments Inc. Ink jet recording apparatus
EP0829356A3 (en) * 1996-09-13 1999-03-17 Seiko Instruments Inc. Ink jet recording apparatus
EP0855280A2 (en) * 1997-01-28 1998-07-29 Seiko Instruments Inc. Record head
EP0855280A3 (en) * 1997-01-28 1999-03-10 Seiko Instruments Inc. Record head

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