JPS5869063A - Ink jet recorder - Google Patents

Ink jet recorder

Info

Publication number
JPS5869063A
JPS5869063A JP16769181A JP16769181A JPS5869063A JP S5869063 A JPS5869063 A JP S5869063A JP 16769181 A JP16769181 A JP 16769181A JP 16769181 A JP16769181 A JP 16769181A JP S5869063 A JPS5869063 A JP S5869063A
Authority
JP
Japan
Prior art keywords
ink
ink jet
control electrode
inkjet recording
jetted
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
JP16769181A
Other languages
Japanese (ja)
Inventor
Yutaka Ebi
海老　豊
Takuro Sekiya
卓朗 関谷
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 JP16769181A priority Critical patent/JPS5869063A/en
Priority to DE19823238821 priority patent/DE3238821A1/en
Publication of JPS5869063A publication Critical patent/JPS5869063A/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
    • 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
    • B41J2202/22—Manufacturing print heads

Landscapes

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

Abstract

PURPOSE:To provide a subject device which allows ink drop to be steadily jetted in the form of particles and is easy to form it into a multi type, by constituting the device such that a number of ink jet nozzles, formed of an insulating body, are formed, and an electrode is formed in at least one spot at the inner wall of each ink jet nozzle. CONSTITUTION:V-recesses (ink jet nozzles) 12a are formed in an insulating body 12 by an etching made on a Si wafer to form a SiO2 film on the surface. A control electrode 13 is formed at the inside of each V-recess 12a, and an insulating plate 11 is adhered to the upper part of the V-recess. Spots, where ink drop is produced, or the forward ends of the control electrodes are positioned independently from each other, and this allows the ink drop to be more steadily jetted in the form of particles when compared with that which is jetted through an ink nozzle formed in a slit.

Description

【発明の詳細な説明】 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 The present invention relates to an electric field on-demand type ink jet recording apparatus.

電界を用いてインク滴を飛翔させるインクジエ実公昭５
４−１９８７４号公報に記載された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シ、また、特
開昭５６−１７０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、マルチ化が賽易になっているが、その反面、電界
の集中が望めず、効率が低く、更には、スリットの間隔
とスリット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 Jitsuko 5, which uses an electric field to fly ink droplets
The inkjet recording device described in Japanese Patent No. 4-19874 uses a nozzle and applies an electric field to the tip of the nozzle, so the concentration of the electric field is large and the efficiency is good, but on the other hand, Multiplication is difficult, and Japanese Patent Laid-Open No. 56-170 or Japanese Patent Laid-Open No. 56-42664
The inkjet recording device described in the publication has a single slit for ejecting ink, and a large number of control electrodes are disposed within the slit, so no nozzles are used and multiplication is possible. However, on the other hand, the electric field cannot be concentrated, the efficiency is low, and furthermore, depending on the slit spacing and slit width, the flying ink particles may become unstable.

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 eliminate the above-mentioned drawbacks of the prior art and provide a multi-electric field on-demand type inkjet recording device with stable particle formation.

第１図乃至第４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１】及び１２は
インク噴射口１１　ａ、　１１　ｂ、　１．２ａ、、　
１２ｂを形成するための絶縁部材、１３はインク噴射口
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、絶縁体１２にＳｔウェハーのエツチングを適用して
Ｖ溝（インク噴射口）１２ａを形成し、表面にＳｉＯ□
　皮膜を作り、次いで、各Ｖ溝１２ａの中に制御電極１
３を形成し、■溝の上部に絶縁板１１を載せて又は接着
して多数個のインク噴射口１２ａを形成したものである
。また、第２図に示した実施例は、プリント板１２′　
　上に制御電極１３のパターンを形成し、その上にＶ溝
を形成した絶縁体１】を設けたものである。なお、第３
図及び第４図に示した実施例は、それぞれ第１図及び第
２図に示した実施例のＶ溝を四角溝にしたものである。1 to 4 respectively show embodiments of the head section of an inkjet recording apparatus according to the present invention. 1] and 12 are ink jet ports 11a, 11b, 1.2a, . . .
An insulating member 12b is formed, and 13 is a control electrode provided on the wall of the ink jet port.In the embodiment shown in FIG. A jet nozzle) 12a is formed, and SiO□ is formed on the surface.
After forming a film, a control electrode 1 is placed in each V-groove 12a.
3 is formed, and a large number of ink jet ports 12a are formed by placing or adhering an insulating plate 11 on the upper part of the groove. Further, in the embodiment shown in FIG. 2, the printed board 12'
A control electrode 13 pattern is formed thereon, and an insulator 1 with a V-groove formed thereon is provided. In addition, the third
In the embodiments shown in FIGS. 1 and 4, the V grooves of the embodiments shown in FIGS. 1 and 2 are made into square grooves.

第５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は制御電
極、加は記録紙、（９）はバイアス電極で、制御電極１
３は、図示のように、記録紙加の方へ突出するように構
成されており、各制御電極１３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１３にパルスが印加された
時にインク滴１４が飛び出すようになっている。なお、
インク滴１４の大きさは、パルス信号のパルス幅又は振
幅を変えることによって変えることができる。FIG. 5 is a diagram for explaining the operating principle of the present invention. In the figure, 11 and 12 are insulators, 13 is a control electrode, 1 is a recording paper, and (9) is a bias electrode. , control electrode 1
3 is configured to protrude toward the recording paper as shown in the figure, and an electric field is applied to the ink at the tip of each control electrode 13 by a bias voltage to the extent that ink droplets do not fly out. The ink droplets 14 are ejected when a pulse is applied to the control electrode 13. In addition,
The size of the ink drop 14 can be varied by varying the pulse width or amplitude of the pulse signal.

第６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１３を記録紙加の方向に突出さ
せ、また、ヘッド部Ｗと記録紙２０の間に加速電極４０
を設け、更には、記録紙加の裏面にバイアス電極間を設
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. 6 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 13 is made to protrude in the direction of recording paper, and an acceleration electrode 40 is provided between the head portion W and the recording paper 20.
Furthermore, a gap between bias electrodes is provided on the back surface of the recording paper, thereby making it possible to increase the distance between the head portion W and the recording paper condyle.

第７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Ｖ溝の上部を連
通させ、制御電極１３が配設されている部分のみ分離す
るようにしたもので、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。また
、かかる技術思想を第３図に示した実施例の四角溝にも
適用できることは容易に理解できよう。FIG. 7 is a front view of the head section showing still another embodiment of the present invention, for example, a portion where the upper part of the V groove of the embodiment shown in FIG. 1 is communicated with the control electrode 13. It is easy to understand that even with this method, the tips of each control electrode can be separated. Furthermore, it is easy to understand that this technical concept can be applied to the square groove of the embodiment shown in FIG.

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゛もの即ちインク滴噴射口がスリット状のものに比
し、安定した粒子を得ることができ、しかも、マルチ化
が容易なインクジェット記録装置を提供することができ
る。As is clear from the above description, according to the present invention, the ink droplet formation locations, that is, the tips of the control electrodes are independent from each other, so that the conventional ink droplet formation locations are in fluid communication with each other. It is possible to provide an inkjet recording device that can obtain more stable particles than an inkjet recording device that has a slit-shaped droplet jetting port, and that can be easily multiplied.

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

第１図乃至第４図は、それぞれ本発明の実施例を示すヘ
ッド部正面図、第５図は、本発明の動作原理を説明する
だめの要部構成図、第６図は、本発明の一実施例を示す
要部構成図、第７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、１１．１２・・・絶縁板、１２′　
・・・プリント板、１１　ａ、　１１　ｂ、　１２ａ、
　１２ｂ−・−インク滴噴射口、１３・・・制御電極、
加・・・記録紙、Ｉ・・・ノ々イアス電極、４０・・加
速電極。 特許出願人　　　株式会社リコー 第１図1 to 4 are front views of the head section showing embodiments of the present invention, FIG. 5 is a configuration diagram of main parts for explaining the operating principle of the present invention, and FIG. FIG. 7 is a front view of the head section showing still another embodiment of the present invention.
...Printed board, 11a, 11b, 12a,
12b--ink droplet jet port, 13... control electrode,
K...Recording paper, I...Nanoias electrode, 40...Acceleration electrode. Patent applicant Ricoh Co., Ltd. Figure 1

Claims (2)

【特許請求の範囲】[Claims] （１）、電界でインクを飛翔させるインクジェット言己
録装置において、絶縁体で構成された多数のインク噴射
口と、各インク噴射口の内壁の少なくとも１つに制御電
極を有することを特徴とするインクジェット記録装置０(1) An inkjet recording device that uses an electric field to fly ink, characterized by having a large number of ink jetting ports made of an insulator and a control electrode on at least one of the inner walls of each ink jetting port. Inkjet recording device 0 （２）、前記制御電極が設けられている面力；目己録紙
の方向に突出していることを特徴とする特許請求の範囲
第（１）項に記載のインクジェット言己録装置０（３）
、前記インク噴射口の一部が流体で連通していることを
特徴とする特許請求の範囲第（１）項又は第（２）項に
記載のインクジェット記録装置。(2) The surface force on which the control electrode is provided; the inkjet recording device 0 (3) according to claim (1) is characterized in that it protrudes in the direction of the recording paper. )
The inkjet recording apparatus according to claim 1 or 2, wherein a part of the ink ejection port is in fluid communication.
JP16769181A 1981-10-20 1981-10-20 Ink jet recorder Pending JPS5869063A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP16769181A JPS5869063A (en) 1981-10-20 1981-10-20 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
JP16769181A JPS5869063A (en) 1981-10-20 1981-10-20 Ink jet recorder

Publications (1)

Publication Number Publication Date
JPS5869063A true JPS5869063A (en) 1983-04-25

Family

ID=15854439

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16769181A Pending JPS5869063A (en) 1981-10-20 1981-10-20 Ink jet recorder

Country Status (1)

Country Link
JP (1) JPS5869063A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61235157A (en) * 1985-04-12 1986-10-20 Tokyo Electric Co Ltd Electrostatic printing
JPS6218271A (en) * 1985-07-16 1987-01-27 Matsushita Electric Ind Co Ltd Method for driving ink jet recording head

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61235157A (en) * 1985-04-12 1986-10-20 Tokyo Electric Co Ltd Electrostatic printing
JPS6218271A (en) * 1985-07-16 1987-01-27 Matsushita Electric Ind Co Ltd Method for driving ink jet recording head
JPH0444906B2 (en) * 1985-07-16 1992-07-23 Matsushita Electric Ind Co Ltd

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