EP0062889B1 - Liquid droplets recording device - Google Patents

Liquid droplets recording device Download PDF

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Publication number
EP0062889B1
EP0062889B1 EP82102956A EP82102956A EP0062889B1 EP 0062889 B1 EP0062889 B1 EP 0062889B1 EP 82102956 A EP82102956 A EP 82102956A EP 82102956 A EP82102956 A EP 82102956A EP 0062889 B1 EP0062889 B1 EP 0062889B1
Authority
EP
European Patent Office
Prior art keywords
teeth
comb
nozzles
recording
liquid droplets
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
Application number
EP82102956A
Other languages
German (de)
French (fr)
Other versions
EP0062889A1 (en
Inventor
Kenth Dipl.-Ing. Nilsson
Jan Bolmgren
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.)
Siemens AG
Siemens Elema AB
Original Assignee
Siemens AG
Siemens Elema AB
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 Siemens AG, Siemens Elema AB filed Critical Siemens AG
Publication of EP0062889A1 publication Critical patent/EP0062889A1/en
Application granted granted Critical
Publication of EP0062889B1 publication Critical patent/EP0062889B1/en
Expired legal-status Critical Current

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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
    • B41J2/145—Arrangement thereof
    • B41J2/155—Arrangement thereof for line printing
    • 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
    • B41J2/14282—Structure of print heads with piezoelectric elements of cantilever 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
    • 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
    • B41J2002/14387—Front shooter

Definitions

  • the invention relates to a writing device working with liquid droplets for the point-by-point recording of analog courses or alphanumeric characters as well as images, whereby there are nozzles arranged in rows for writing the individual points, in front of whose inlet openings contacted piezoelectric transducers are arranged in such a way that writing fluid occurs when the voltage changes at the contact is pushed out of the nozzle and applied to a recording medium arranged in front of the outlet opening of the nozzles, the individual transducers being formed by the teeth of a comb-like piezo plate and the plate material itself being bilaminarly formed from piezoceramic and a carrier material.
  • Such a writing instrument in which the plate material consists of piezoceramic and metal, is known from DE-OS 2 527 647. Because of the shape of the piezo plate and the plate material, a mechanical coupling is created between the teeth via the common ridge of the teeth. If a tooth is excited by a tension in such a way that it bends, the result is that the neighboring teeth also bend, although not equally strongly, with a certain delay. Due to the mechanical coupling, the more distant teeth are also affected; the excitation of these teeth decreases with the distance to the excited tooth. In the known writing instrument, the comb web of the piezo plate is fastened to a carrier, so that this part of the piezo plate cannot be bent. If the comb of the piezo plate to be clamped to the holder of the writing instrument is slightly bent, the plate can easily break when clamped.
  • each tooth must be in the rest position before it is actuated. If two adjacent teeth are to be actuated one after the other, the first actuated tooth should not cause the adjacent tooth to vibrate. If this is done, the time interval between the actuation pulses must be made so long that the vibration of the adjacent tooth has subsided. The result is a sharp drop in the maximum write speed.
  • the invention has for its object to provide a writing instrument of the type mentioned, in which the mechanical coupling between the teeth of the piezo plate is reduced so that the transmission of the coupling forces from an activated tooth to the adjacent teeth is eliminated.
  • the piezo plate should be so flexible that a break when clamping the back of the comb is avoided.
  • This object is achieved according to the invention in that, in order to reduce the mechanical coupling between the teeth, the ceramic material in the extension of the interdental spaces is also removed on the comb web via the comb web common to all teeth. Because only the carrier material connects the teeth to one another, the mechanical coupling between the teeth is reduced in such a way that when a tooth is activated, the adjacent teeth are not influenced. Furthermore, the piezo plate is now so flexible that no breakage can occur in the plate when the back of the comb is clamped.
  • FIG. 3 shows the outer basic structure of a writing instrument.
  • the record carrier 3 z. B. normal registration paper, drawn in the direction of arrow 4 over a spacer 5 on the side 6 of the housing 7.
  • the connecting line 8 is guided, which is provided at its free end with a plug 9 for connection to a control device, not shown, which supplies the control signals for recording the desired courses, characters or images.
  • the side 6 is the side of a carrier 10 which has a number of nozzles 11 arranged in a row next to one another.
  • rod-shaped transducers 12 made of piezoelectric material are present in the housing 7, which are contacted and arranged in such a way that they spray writing fluid in the form of a droplet from the nozzle 11 with appropriate electrical control.
  • the piezo comb 14 consisting of the transducers 12 and the comb back 13 is arranged parallel to the plane of the carrier 10.
  • FIG. 4 shows that the comb-like piezo plate is bilaminar and is formed from a piezoceramic layer 16 and a metal layer 17.
  • the free end area of the individual transducers 12 is in front of the one individual nozzles 11 of the row of nozzles.
  • the comb back 13 is screwed to the carrier 10 receiving the row of nozzles with a fastening screw set 15.
  • ceramic or glass e.g. As aluminum oxide or silicon may be provided.

Landscapes

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

Description

Die Erfindung betrifft ein mit Flüssigkeitströpfchen arbeitendes Schreibgerät zur punktweisen Aufzeichnung analoger Verläufe oder alphanumerischer Zeichen sowie von Bildern, wobei zum Schreiben der einzelnen Punkte reihenweise angeordnete Düsen vorhanden sind, vor deren Eintrittsöffnungen derart kontaktierte piezoelektrische Wandler angeordnet sind, dass bei elektrischen Spannungsänderungen an der Kontaktierung Schreibflüssigkeit aus der Düse herausgestossen und auf einen vor der Austrittsöffnung der Düsen angeordnetem Aufzeichnungsträger aufgebracht wird, wobei die einzelnen Wandler durch die Zähne einer kammartigen Piezoplatte geformt werden und das Plattenmaterial selbst bilaminar aus Piezokeramik und einem Trägermaterial gebildet ist.The invention relates to a writing device working with liquid droplets for the point-by-point recording of analog courses or alphanumeric characters as well as images, whereby there are nozzles arranged in rows for writing the individual points, in front of whose inlet openings contacted piezoelectric transducers are arranged in such a way that writing fluid occurs when the voltage changes at the contact is pushed out of the nozzle and applied to a recording medium arranged in front of the outlet opening of the nozzles, the individual transducers being formed by the teeth of a comb-like piezo plate and the plate material itself being bilaminarly formed from piezoceramic and a carrier material.

Ein solches Schreibgerät, bei dem das Plattenmaterial aus Piezokeramik und Metall besteht, ist durch die DE-OS 2 527 647 bekannt. Wegen der Form der Piezoplatte und des Plattenmaterials entsteht über den gemeinsamen Kammsteg der Zähne eine mechanische Kopplung zwischen diesen. Wenn ein Zahn durch eine Spannung derart angeregt wird, dass er sich biegt, hat das zur Folge, dass die benachbarten Zähne sich mit einer gewissen Verzögerung ebenfalls, wenn auch nicht gleich stark, biegen. Aufgrund der mechanischen Kopplung werden auch die weiter entfernten Zähne beeinflusst ; die Anregung dieser Zähne nimmt aber mit dem Abstand zum angerecten Zahn ab. Bei dem bekannten Schreibgerät ist der Kammsteg der Piezoplatte an einem Träger befestigt, so dass dieser Teil der Piezoplatte nicht gebogen werden kann. Wenn der an den Träger des Schreibgerätes einzuspannende Kammsteg der Piezoplatte etwas gebogen ist, kann die Platte beim Einspannen leicht brechen.Such a writing instrument, in which the plate material consists of piezoceramic and metal, is known from DE-OS 2 527 647. Because of the shape of the piezo plate and the plate material, a mechanical coupling is created between the teeth via the common ridge of the teeth. If a tooth is excited by a tension in such a way that it bends, the result is that the neighboring teeth also bend, although not equally strongly, with a certain delay. Due to the mechanical coupling, the more distant teeth are also affected; the excitation of these teeth decreases with the distance to the excited tooth. In the known writing instrument, the comb web of the piezo plate is fastened to a carrier, so that this part of the piezo plate cannot be bent. If the comb of the piezo plate to be clamped to the holder of the writing instrument is slightly bent, the plate can easily break when clamped.

Durch die erwähnte mechanische Kopplung zwischen den Zähnen besteht auch die Gefahr, dass Tinte aus dem Bereich benachbarter Zähne vor die Düse des mit Spannung angeregten Zahnes übertragen wird. Um eine gute Schreibqualität zu erzielen, muss sich jeder Zahn vor seiner Betätigung in Ruhestellung befinden. Wenn zwei nebeneinanderliegende Zähne unmittelbar nacheinander betätigt werden sollen, so dürfte der zuerst betätigte Zahn den benachbarten Zahn nicht in Schwingung versetzen. Erfolgt dies, muss der Zeitabstand zwischen den Betätigungsimpulsen so lang gemacht werden, dass die Schwingung des benachbarten Zahnes abgeklungen ist. Das Ergebnis ist eine kräftige Senkung der maximalen Schreibgeschwindigkeit.Due to the mechanical coupling between the teeth mentioned, there is also the risk that ink from the area of adjacent teeth is transferred to the nozzle of the tooth that is excited by tension. To achieve good writing quality, each tooth must be in the rest position before it is actuated. If two adjacent teeth are to be actuated one after the other, the first actuated tooth should not cause the adjacent tooth to vibrate. If this is done, the time interval between the actuation pulses must be made so long that the vibration of the adjacent tooth has subsided. The result is a sharp drop in the maximum write speed.

Der Erfindung lieft die Aufgabe zugrunde, ein Schreibgerät der eingangs genannten Art zu schaffen, bei dem die mechanische Kopplung zwischen den Zähnen der Piezoplatte so verringert ist, dass die Übertragung der Kopplungskräfte von einem aktivierten Zahn auf die benachbarten Zähne beseitigt ist. Ausserdem soll die Piezoplatte so biegsam sein, dass ein Bruch beim Einspannen des Kammrückens vermieden wird.The invention has for its object to provide a writing instrument of the type mentioned, in which the mechanical coupling between the teeth of the piezo plate is reduced so that the transmission of the coupling forces from an activated tooth to the adjacent teeth is eliminated. In addition, the piezo plate should be so flexible that a break when clamping the back of the comb is avoided.

Diese Aufgabe ist erfindungsgemäss dadurch gelöst, dass zur Verringerung der mechanischen Kopplung zwischen den Zähnen über den allen Zähnen gemeinsamen Kammsteg das Keramikmaterial in der Verlängerung der Zahnzwischenräume auch auf dem Kammsteg entfernt ist. Dadurch, dass nur das Trägermaterial die Zähne miteinander verbindet, ist die mechanische Kopplung zwischen den Zähnen derart reduziert, dass beim Aktivieren eines Zahnes die benachbarten Zähne nicht beeinflusst werden. Ferner ist die Piezoplatte nunmehr derart biegsam, dass beim Einspannen des Kammrückens kein Bruch in der Platte auftreten kann.This object is achieved according to the invention in that, in order to reduce the mechanical coupling between the teeth, the ceramic material in the extension of the interdental spaces is also removed on the comb web via the comb web common to all teeth. Because only the carrier material connects the teeth to one another, the mechanical coupling between the teeth is reduced in such a way that when a tooth is activated, the adjacent teeth are not influenced. Furthermore, the piezo plate is now so flexible that no breakage can occur in the plate when the back of the comb is clamped.

Die Erfindung ist nachfolgend anhand eines in den Zeichnungen dargestellten Ausführungsbeispiels näher erläutert. Es zeigen :

  • Figur 1 eine Draufsicht auf eine kammartige Piezoplatte nach der Erfindung,
  • Figur 2 einen Schnitt durch eine Piezoplatte gemäss Schnittlinie 11-11 von Fig. 1,
  • Figur 3 eine schematische Ansicht eines Schreibgerätes, und
  • Figur 4 eine Seitenansicht eines als Biegeschwinger arbeitenden piezoelektrischen Wandlers.
The invention is explained in more detail below with reference to an embodiment shown in the drawings. Show it :
  • FIG. 1 shows a top view of a comb-like piezo plate according to the invention,
  • 2 shows a section through a piezo plate according to section line 11-11 of FIG. 1,
  • Figure 3 is a schematic view of a writing instrument, and
  • Figure 4 is a side view of a piezoelectric transducer working as a bending oscillator.

Aus Fig. 3 ist der äussere Prinzipaufbau eines Schreibgerätes ersichtlich. Über die Transportrollen 1 und 2 wird der Aufzeichnungsträger 3, z. B. normales Registrierpapier, in Richtung des Pfeiles 4 über einen Abstandshalter 5 an der Seite 6 des Gehäuses 7 vorbeigezogen. In das Gehäuse 7 ist die Anschlussleitung 8 geführt, die an ihrem freien Ende mit einem Stecker 9 zum Anschluss an ein nicht dargestelles Steuergerät versehen ist, das die Steuersignale für die Aufzeichnung der gewünschten Verläufe, Zeichen oder Bilder liefert.3 shows the outer basic structure of a writing instrument. About the transport rollers 1 and 2, the record carrier 3, z. B. normal registration paper, drawn in the direction of arrow 4 over a spacer 5 on the side 6 of the housing 7. In the housing 7, the connecting line 8 is guided, which is provided at its free end with a plug 9 for connection to a control device, not shown, which supplies the control signals for recording the desired courses, characters or images.

In Fig. 4 ist dargestellt, wie die Seite 6 des Gehäuses 7 parallel zum Aufzeichnungsträger 3 angebracht ist. Die Seite 6 ist die Seite eines Trägers 10, der eine Anzahl in einer Reihe nebeneinander angeordneter Düsen 11 aufweist. Ausser der Schreibflüssigkeit sind im Gehäuse 7 stabförmige Wandler 12 aus piezoelektrischem Material vorhanden, die derart kontaktiert und angeordnet sind, dass sie bei entsprechender elektrischer Ansteuerung Schreibflüssigkeit in Form eines Tröpfchens aus der Düse 11 spritzen.4 shows how the side 6 of the housing 7 is attached parallel to the recording medium 3. The side 6 is the side of a carrier 10 which has a number of nozzles 11 arranged in a row next to one another. In addition to the writing fluid, rod-shaped transducers 12 made of piezoelectric material are present in the housing 7, which are contacted and arranged in such a way that they spray writing fluid in the form of a droplet from the nozzle 11 with appropriate electrical control.

Die Wandler 12, die als Zähne eines Kammes ausgebildet sind (Fig. 1), arbeiten als Biegeschwinger. Dabei ist der aus den Wandlern 12 und dem Kammrücken 13 bestehende Piezokamm 14 parallel zur Ebene des Trägers 10 angeordnet. In der Figur 4 ist dargestellt, dass die kammartige Piezoplatte bilaminar ist und aus einer Piezokeramik-Schicht 16 und einer Metallschicht 17 gebildet ist. Der freie Endbereich der einzelnen Wandler 12 befindet sich vor den einzelnen Düsen 11 der Düsenreihe. Der Kammrücken 13 ist mit einem Befestigungsschraubsatz 15 an dem die Düsenreihe aufnehmenden Träger 10 angeschraubt. Bei Anlegen von elektrischer Spannung an die Kontaktierungen eines Wandlers 12 bewegt sich dieser in die in Fig. 4 gestrichelt dargestellte Position. Bei einer Unterbrechung der angelegten Spannung schnellt er in die nicht gebogene, mit durchgezogenen Linien gezeichnete Stellung zurück und drückt dabei ein Tröpfchen Schreibflüssigkeit durch die Düse 11.The transducers 12, which are designed as teeth of a comb (FIG. 1), work as a bending oscillator. The piezo comb 14 consisting of the transducers 12 and the comb back 13 is arranged parallel to the plane of the carrier 10. FIG. 4 shows that the comb-like piezo plate is bilaminar and is formed from a piezoceramic layer 16 and a metal layer 17. The free end area of the individual transducers 12 is in front of the one individual nozzles 11 of the row of nozzles. The comb back 13 is screwed to the carrier 10 receiving the row of nozzles with a fastening screw set 15. When electrical voltage is applied to the contacts of a transducer 12, it moves into the position shown in dashed lines in FIG. 4. If the applied voltage is interrupted, it snaps back into the non-curved position drawn with solid lines and presses a droplet of writing fluid through the nozzle 11.

In den Fig. 1 und 2 ist dargestellt, dass zwischen den Zähnen bzw. den Wandlern 12 über den allen Zähnen 12 gemeinsamen Kammsteg 13 die Keramikschicht 16 in der Verlängerung der Zahnzwischenräume 18 auch auf dem Kammsteg entfernt ist. Die Fig. 1 bis 4 sind nicht masstäblich dargestellt. Der Abstand zwischen z. B. jeder Düse 11 bzw. jedem Zahn 12 beträgt etwa 250 J.l.m.1 and 2 show that between the teeth or the transducers 12 over the comb web 13 common to all teeth 12, the ceramic layer 16 in the extension of the interdental spaces 18 is also removed on the comb web. 1 to 4 are not shown to scale. The distance between z. B. each nozzle 11 or tooth 12 is approximately 250 J.l.m.

Dadurch, dass nur die Metallschicht 17 die Zähne 12 miteinander verbindet, ist eine maximale Verringerung der mechanischen Kopplung zwischen den Zähnen 12 gegeben. Hierdurch kann eine gute Schreibqualität und gleichzeitig eine hohe Schreibgeschwindigkeit erzielt werden. Ferner entstehen geringere mechanische Beanspruchungen im Kamm bei der Einspannung. Als Trägermaterial für die Piezokeramik kann statt Metall auch Keramik oder Glas, z. B. Aluminiumoxid oder Silizium, vorgesehen sein.Because only the metal layer 17 connects the teeth 12 to one another, there is a maximum reduction in the mechanical coupling between the teeth 12. Good writing quality and, at the same time, high writing speed can thereby be achieved. Furthermore, there are less mechanical stresses in the comb during clamping. As a carrier material for the piezoceramic, ceramic or glass, e.g. As aluminum oxide or silicon may be provided.

Claims (1)

  1. A recording instrument operating by means of liquid droplets for the punctiform recording of analogue patterns or alphanumerical characters, as well as pictures, wherein in order to record the individual dots, nozzles are arranged in rows, before the inlet openings of which nozzles, contacted piezoelectric transducers are arranged in such a way that, on changes in the electrical potential at the contact, recording liquid is ejected from the nozzle and applied onto a data carrier which is arranged in front of the outlet openings of the nozzles, the individual transducers being formed by the teeth of a comb-shaped piezoplate and the plate material itself being of two-layer construction and made of piezoceramic and a carrier material, characterised in that, in order to decrease the mechanical coupling between the teeth (12) through the comb bridge portion (13) which is common to all the teeth (12), the ceramic material (16) is also removed on the comb bridge portion (13) in a prolongation of the spaces (18) between the teeth.
EP82102956A 1981-04-08 1982-04-06 Liquid droplets recording device Expired EP0062889B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19813114192 DE3114192A1 (en) 1981-04-08 1981-04-08 WRITING DEVICE WORKING WITH LIQUID DROPS
DE3114192 1981-04-08

Publications (2)

Publication Number Publication Date
EP0062889A1 EP0062889A1 (en) 1982-10-20
EP0062889B1 true EP0062889B1 (en) 1984-09-05

Family

ID=6129680

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82102956A Expired EP0062889B1 (en) 1981-04-08 1982-04-06 Liquid droplets recording device

Country Status (5)

Country Link
US (1) US4409601A (en)
EP (1) EP0062889B1 (en)
JP (1) JPS57178767A (en)
BR (1) BR8202012A (en)
DE (2) DE3114192A1 (en)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3306101A1 (en) * 1983-02-22 1984-08-23 Siemens AG, 1000 Berlin und 8000 München WRITING DEVICE WORKING WITH LIQUID DROPS
DE3317082A1 (en) * 1983-05-10 1984-11-15 Siemens AG, 1000 Berlin und 8000 München WRITING DEVICE WORKING WITH LIQUID DROPS
DE3320441A1 (en) * 1983-06-06 1984-12-06 Siemens AG, 1000 Berlin und 8000 München WRITING DEVICE WORKING WITH LIQUID DROPLETS WITH ROD-SHAPED PIEZOELECTRIC TRANSFORMERS CONNECTED ON BOTH ENDS WITH A NOZZLE PLATE
US5000786A (en) * 1987-11-02 1991-03-19 Seiko Epson Corporation Ink composition and ink jet recording apparatus and method
DE68907434T2 (en) * 1988-04-12 1994-03-03 Seiko Epson Corp Inkjet head.
US5786833A (en) * 1993-10-07 1998-07-28 Seiko Epson Corporation Piezoelectric driver for an ink jet recording head, including front end plate having front end face aligned with front end face of inactive region of driver
CH688960A5 (en) 1994-11-24 1998-06-30 Pelikan Produktions Ag Droplet generator for microdroplets, especially for an inkjet printer.
JPH08187848A (en) * 1995-01-12 1996-07-23 Brother Ind Ltd Laminated type piezoelectric element and its manufacture
US6270202B1 (en) * 1997-04-24 2001-08-07 Matsushita Electric Industrial Co., Ltd. Liquid jetting apparatus having a piezoelectric drive element directly bonded to a casing
DE19911399C2 (en) * 1999-03-15 2001-03-01 Joachim Heinzl Method for controlling a piezo print head and piezo print head controlled according to this method
JP2004055410A (en) * 2002-07-22 2004-02-19 Advantest Corp Bimorph switch, method of producing bimorph switch, electronic circuit, and method of producing electronic circuit
US20140333703A1 (en) * 2013-05-10 2014-11-13 Matthews Resources, Inc. Cantilevered Micro-Valve and Inkjet Printer Using Said Valve
US11794476B2 (en) 2018-05-11 2023-10-24 Matthews International Corporation Micro-valves for use in jetting assemblies
WO2019215669A1 (en) 2018-05-11 2019-11-14 Matthews International Corporation Electrode structures for micro-valves for use in jetting assemblies
WO2019215672A1 (en) 2018-05-11 2019-11-14 Matthews International Corporation Systems and methods for controlling operation of micro-valves for use in jetting assemblies
CN116394655A (en) 2018-05-11 2023-07-07 马修斯国际公司 Systems and methods for sealing micro-valves used in jetting assemblies
US11639057B2 (en) 2018-05-11 2023-05-02 Matthews International Corporation Methods of fabricating micro-valves and jetting assemblies including such micro-valves

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56548B2 (en) * 1973-02-03 1981-01-08
DE2361781A1 (en) * 1973-12-12 1975-06-19 Philips Patentverwaltung WRITING WORK FOR WRITING WITH LIQUID INK
DE2527647C3 (en) * 1975-06-20 1981-06-25 Siemens AG, 1000 Berlin und 8000 München Writing implement that works with liquid droplets
JPS5518276A (en) * 1978-07-27 1980-02-08 Seiko Epson Corp Liquid injection apparatus

Also Published As

Publication number Publication date
BR8202012A (en) 1983-03-15
DE3114192A1 (en) 1982-10-28
EP0062889A1 (en) 1982-10-20
DE3260645D1 (en) 1984-10-11
US4409601A (en) 1983-10-11
JPS57178767A (en) 1982-11-04

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