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JPH0256218B2 - - Google Patents
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JPH0256218B2 - - Google Patents

Info

Publication number
JPH0256218B2
JPH0256218B2 JP56111668A JP11166881A JPH0256218B2 JP H0256218 B2 JPH0256218 B2 JP H0256218B2 JP 56111668 A JP56111668 A JP 56111668A JP 11166881 A JP11166881 A JP 11166881A JP H0256218 B2 JPH0256218 B2 JP H0256218B2
Authority
JP
Japan
Prior art keywords
ink
nozzle
recording device
vibrator
pressure generating
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 - Lifetime
Application number
JP56111668A
Other languages
Japanese (ja)
Other versions
JPS5812772A (en
Inventor
Takuro Sekya
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 JP11166881A priority Critical patent/JPS5812772A/en
Publication of JPS5812772A publication Critical patent/JPS5812772A/en
Priority to US06/720,489 priority patent/US4631553A/en
Publication of JPH0256218B2 publication Critical patent/JPH0256218B2/ja
Granted legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41JTYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J2/00Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
    • B41J2/005Typewriters 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
    • B41J2/01Ink jet
    • B41J2/135Nozzles
    • B41J2/14Structure thereof only for on-demand ink jet heads
    • B41J2/14201Structure of print heads with piezoelectric elements
    • B41J2/14233Structure of print heads with piezoelectric elements of film type, deformed by bending and disposed on a diaphragm

Landscapes

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

Description

【発明の詳細な説明】 本発明は、新規なノンインパクト記録装置に関
する。
DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a novel non-impact recording device.

ノンインパクト記録装置として、従来より、第
1図に示すようなマルチオンデマンド型インクジ
エツト記録装置、及び、第2図に示すようなマル
チ荷電偏向型インクジエツト記録装置が提案され
ている。しかし、第1図に示したマルチオンデマ
ンド型インクジエツト記録装置は、振動子1及び
ポンプ室2にある程度の大きさを必要とするた
め、ノズル3の配列を高密度化することが困難で
あつた。また、高密度化を図るために、図示のよ
うな構成も考えられているが、ノズル3にインク
を導くための流路4を曲げる必要があり、その場
合、流路4の形成は、フオトエツチング等で容易
に加工できるが、各流路の流体抵抗がそれぞれ異
なるため、各ノズルより均一なインク滴を噴出さ
せることは極めて困難であつた。また、第2図に
示したマルチ荷電偏向型インクジエツト記録装置
は、振動子10、振動板11、液室12、ノズル
プレート13、荷電電極14、及び、偏向電極1
5等より成るが、ノズルの前面に荷電電極、偏向
電極等を配列する必要があり、構成が複雑であつ
た。
As non-impact recording apparatuses, a multi-on-demand type inkjet recording apparatus as shown in FIG. 1 and a multi-charge deflection type inkjet recording apparatus as shown in FIG. 2 have been proposed. However, the multi-on-demand type inkjet recording device shown in FIG. 1 requires a certain size for the vibrator 1 and the pump chamber 2, making it difficult to arrange the nozzles 3 at a high density. . In addition, in order to achieve high density, a configuration as shown in the figure has been considered, but it is necessary to bend the flow path 4 for guiding ink to the nozzle 3, and in that case, the formation of the flow path 4 may be Although it can be easily processed by etching or the like, it is extremely difficult to eject uniform ink droplets from each nozzle because the fluid resistance of each flow path is different. The multi-charged deflection type inkjet recording device shown in FIG.
However, it is necessary to arrange charging electrodes, deflection electrodes, etc. in front of the nozzle, and the structure is complicated.

本発明は、上述のごとき実情に鑑みてなされた
もので、特に、ノズル前面に電極等を必要とせ
ず、かつ、高密度化が容易な新規なノンインパク
ト記録装置を提供しようとするものである。
The present invention has been made in view of the above-mentioned circumstances, and particularly aims to provide a new non-impact recording device that does not require electrodes on the front surface of the nozzle and can easily achieve high density recording. .

第3図は、本発明によるノンインパクト記録装
置の一実施例を説明するための図で、aは要部側
断面図、bは全体斜視図で、図中、20はインク
供給口、21はインク供給振動子、22はインク
供給流路、23はノズルプレート、24はノズル
穴、25はインク排出振動子、26はインク排出
流路、27はインク排出口で、インク供給口20
よりある圧力でインクが供給され、インク供給振
動子21はある周波数で振動している。従つて、
インク排出振動子25が作動していない場合、つ
まり、加圧インクがインク排出口27から排出さ
れない場合は、ノズル穴24よりマルチで(図示
例の場合6個)、インク滴が噴射される。ここで、
インク排出振動子25に画像記録信号を供給し、
記録に使用しないインク滴を、インク滴が形成さ
れる前にインク排出振動子25を作動させてイン
ク排出口27より排出するようにすると、作動さ
れたインク排出振動子に関連するノズル穴からは
インク滴は噴射されず、作動されなかつたインク
排出振動子に関連するノズル穴のみからインク滴
が噴射されるので、画像記録信号によつて、記録
に使用するインク滴のみをノズル穴から噴射し、
所望の記録を行うようにすることができる。な
お、インク排出口から排出されたインクは図示し
ないインク回収系によつて回収され、再度、印写
に使用される。
FIG. 3 is a diagram for explaining one embodiment of the non-impact recording device according to the present invention, in which a is a side sectional view of the main part, and b is a perspective view of the whole, in which 20 is an ink supply port, 21 is an An ink supply vibrator, 22 is an ink supply channel, 23 is a nozzle plate, 24 is a nozzle hole, 25 is an ink discharge vibrator, 26 is an ink discharge channel, 27 is an ink discharge port, and the ink supply port 20
Ink is supplied at a certain pressure, and the ink supply vibrator 21 vibrates at a certain frequency. Therefore,
When the ink discharge vibrator 25 is not operating, that is, when pressurized ink is not discharged from the ink discharge port 27, multiple (six in the illustrated example) ink droplets are ejected from the nozzle holes 24. here,
supplying an image recording signal to the ink discharge vibrator 25;
When ink droplets that are not used for recording are discharged from the ink discharge port 27 by activating the ink discharge vibrator 25 before ink droplets are formed, the ink droplets that are not used for recording are discharged from the nozzle hole associated with the activated ink discharge vibrator. Ink droplets are not ejected, but are ejected only from the nozzle holes associated with the ink ejection vibrator that was not activated, so only the ink droplets used for recording are ejected from the nozzle holes according to the image recording signal. ,
It is possible to perform desired recording. Note that the ink discharged from the ink discharge port is recovered by an ink recovery system (not shown) and used again for printing.

以上の説明から明らかなように、本発明による
と、 (1) 第1図に示した従来のマルチオンデマンド型
インクジエツト記録装置と違い、インク供給系
路が同一形状、同一寸法であるため、また、共
通(単一)のインク供給振動子で一度に所望数
のインク滴の形成が行われるため、形成された
インク滴の大きさ、速度等のばらつきが極めて
小さく、そのため、高品質の画像を形成するこ
とができる。
As is clear from the above description, according to the present invention, (1) unlike the conventional multi-on-demand type inkjet recording device shown in FIG. Since the desired number of ink droplets are formed at once using a common (single) ink supply vibrator, variations in the size, speed, etc. of the formed ink droplets are extremely small, and as a result, high-quality images can be produced. can be formed.

(2) ノズルの配列を高密度化することができる。(2) The nozzle arrangement can be made denser.

(3) ノズル配列を高密度化するためにそれぞれの
インク排出流路を曲げても、インク排出流路は
インクを排出するだけの機能を果せばよいか
ら、従来のマルチオンデマンド型インクジエツ
ト記録装置のように、インク流路が曲ることに
よつて(それぞれのインク流路の形状が異なる
ことによつて)、インク滴の形成に支障をきた
すというようなことはない。
(3) Even if each ink discharge channel is bent to increase the density of the nozzle array, the ink discharge channel only has to perform the function of discharging ink, so conventional multi-on-demand inkjet recording Unlike other devices, bending of the ink channels (because the shapes of the ink channels are different) does not interfere with the formation of ink droplets.

(4) 第2図に示した従来のマルチ荷電偏向型イン
クジエツト記録装置のように、ノズル前面に複
雑な電極を必要とせず、極めてシンプルなノン
インパクト記録装置を構成することができる。
(4) Unlike the conventional multi-charge deflection type inkjet recording device shown in FIG. 2, an extremely simple non-impact recording device can be constructed without requiring complicated electrodes on the front surface of the nozzle.

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

第1図は、従来のマルチインクオンデマンド型
インクジエツト記録装置の一例を説明するための
図で、aは要部側断面図、bは正面図、第2図
は、従来のマルチ荷電偏向型インクジエツト記録
装置の一例を示す要部側断面図、第3図は、本発
明によるノンインパクト記録装置の一実施例を説
明するための図で、aは要部側断面図、bは全体
斜視図である。 20……インク供給口、21……インク供給振
動子、22……インク供給流路、23……ノズル
プレート、24……ノズル穴、25……インク排
出振動子、26……インク排出流路、27……イ
ンク排出口。
FIG. 1 is a diagram for explaining an example of a conventional multi-ink on-demand type inkjet recording device, in which a is a side sectional view of the main part, b is a front view, and FIG. 2 is a conventional multi-charge deflection type inkjet recording device. FIG. 3 is a side sectional view of a main part showing an example of a recording device. FIG. be. 20... Ink supply port, 21... Ink supply vibrator, 22... Ink supply channel, 23... Nozzle plate, 24... Nozzle hole, 25... Ink discharge vibrator, 26... Ink discharge channel , 27... Ink discharge port.

Claims (1)

【特許請求の範囲】[Claims] 1 複数のインク流路と、前記インク流路の各々
に対応して設けられたノズルと、前記インク流路
の一方の端部に設けられ、前記ノズルより飛翔液
滴を形成するための第1の液圧発生手段と、前記
インク流路の他端部であつて、前記インク流路の
各々に対応して設けられた前記ノズルからの前記
飛翔液滴の形成を阻止させるために、該インク流
路の他端部よりインクを排出するための第2の液
圧発生手段と、前記排出されたインクを回収する
手段とを有し、前記インク流路のうち、前記ノズ
ルと前記第1の液圧発生手段との間の部分の長さ
が全て均等であることを特徴とするノンインパク
ト記録装置。
1 a plurality of ink channels, a nozzle provided corresponding to each of the ink channels, and a first ink channel provided at one end of the ink channel for forming flying droplets from the nozzles; and a liquid pressure generating means for preventing the formation of the flying droplets from the nozzles, which are provided at the other end of the ink flow path and correspond to each of the ink flow paths. It has a second hydraulic pressure generating means for discharging ink from the other end of the flow path, and a means for recovering the discharged ink. A non-impact recording device characterized in that the length of the portion between it and the hydraulic pressure generating means is all equal.
JP11166881A 1981-07-17 1981-07-17 Non-impact recording device Granted JPS5812772A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP11166881A JPS5812772A (en) 1981-07-17 1981-07-17 Non-impact recording device
US06/720,489 US4631553A (en) 1981-07-17 1985-04-08 Printer head of an ink-jet printer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11166881A JPS5812772A (en) 1981-07-17 1981-07-17 Non-impact recording device

Publications (2)

Publication Number Publication Date
JPS5812772A JPS5812772A (en) 1983-01-24
JPH0256218B2 true JPH0256218B2 (en) 1990-11-29

Family

ID=14567147

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11166881A Granted JPS5812772A (en) 1981-07-17 1981-07-17 Non-impact recording device

Country Status (1)

Country Link
JP (1) JPS5812772A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2014160424A (en) 2013-02-20 2014-09-04 Smc Corp Flow control device

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2846844A1 (en) * 1978-10-27 1980-05-08 Philips Patentverwaltung INK-JET PRINTER
JPS5698176A (en) * 1980-01-08 1981-08-07 Toshiba Corp Ink jet recording device

Also Published As

Publication number Publication date
JPS5812772A (en) 1983-01-24

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