EP0062889A1 - Dispositif d'enregistrement à gouttelettes de liquide - Google Patents

Dispositif d'enregistrement à gouttelettes de liquide Download PDF

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Publication number
EP0062889A1
EP0062889A1 EP82102956A EP82102956A EP0062889A1 EP 0062889 A1 EP0062889 A1 EP 0062889A1 EP 82102956 A EP82102956 A EP 82102956A EP 82102956 A EP82102956 A EP 82102956A EP 0062889 A1 EP0062889 A1 EP 0062889A1
Authority
EP
European Patent Office
Prior art keywords
teeth
comb
writing
transducers
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.)
Granted
Application number
EP82102956A
Other languages
German (de)
English (en)
Other versions
EP0062889B1 (fr
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
Siemens Corp
Original Assignee
Siemens AG
Siemens Elema AB
Siemens Corp
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, Siemens Corp filed Critical Siemens AG
Publication of EP0062889A1 publication Critical patent/EP0062889A1/fr
Application granted granted Critical
Publication of EP0062889B1 publication Critical patent/EP0062889B1/fr
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 an operating with liquid droplets writing instrument pointwise recording of analogue curves or alphanumerical characters and of images, for writing of the individual dots in rows arranged nozzles are provided, prior to their entry openings so contacted piezoelectric transducers are arranged such that changes in s-in electrical Spannun g ejected at the contacting writing fluid from the nozzle and onto one in front of the outlet. Opening of the nozzles arranged recording medium is applied, 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 25 27 647. Because of the shape of the piezo plate and The plate material creates a mechanical coupling 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 attached to a carrier, so that this part of the piezo plate cannot be bent. If the comb web 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 it breaks when the comb is clamped back is avoided.
  • this object is achieved in that, in order to reduce the mechanical coupling between the teeth, the ceramic material is removed 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 clamping the comb back. "
  • 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 at its free end with a plug 9 for connection to a Darge is provided control unit 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, which are contacted and arranged in such a way that they spray writing fluid in the form of a droplet from the nozzle 11 when appropriately controlled electrically.
  • 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 located in front of the 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.
  • each nozzle 11 or tooth 12 is about 250 microns.
  • ceramic or glass e.g. As aluminum oxide or silicon may be provided.

Landscapes

  • Particle Formation And Scattering Control In Inkjet Printers (AREA)
EP82102956A 1981-04-08 1982-04-06 Dispositif d'enregistrement à gouttelettes de liquide Expired EP0062889B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19813114192 DE3114192A1 (de) 1981-04-08 1981-04-08 Mit fluessigkeitstroepfchen arbeitendes schreibgeraet
DE3114192 1981-04-08

Publications (2)

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

Family

ID=6129680

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82102956A Expired EP0062889B1 (fr) 1981-04-08 1982-04-06 Dispositif d'enregistrement à gouttelettes de liquide

Country Status (5)

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

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0119489A3 (en) * 1983-02-22 1985-10-30 Siemens Aktiengesellschaft Writing apparatus functioning with liquid droplets
EP0713773A3 (fr) * 1994-11-24 1997-04-16 Pelikan Produktions Ag Générateur de micro-gouttelettes en particulier pour imprimante à jet d'encre

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3317082A1 (de) * 1983-05-10 1984-11-15 Siemens AG, 1000 Berlin und 8000 München Mit fluessigkeitstroepfchen arbeitendes schreibgeraet
DE3320441A1 (de) * 1983-06-06 1984-12-06 Siemens AG, 1000 Berlin und 8000 München Mit fluessigkeitstroepfchen arbeitendes schreibgeraet mit an beiden enden starr mit einer duesenplatte verbundenen stabfoermigen piezoelektrischen wandlern
US5000786A (en) * 1987-11-02 1991-03-19 Seiko Epson Corporation Ink composition and ink jet recording apparatus and method
EP0337429B1 (fr) * 1988-04-12 1993-07-07 Seiko Epson Corporation Tête à jet d'encre
DE4435914C2 (de) * 1993-10-07 1999-02-25 Seiko Epson Corp Piezoelektrischer Antrieb für einen Tintenstrahlaufzeichnungskopf und Verfahren zu dessen Herstellung
JPH08187848A (ja) * 1995-01-12 1996-07-23 Brother Ind Ltd 積層式圧電素子およびその製造方法
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 (de) * 1999-03-15 2001-03-01 Joachim Heinzl Verfahren zum Ansteuern eines Piezo-Druckkopfes und nach diesem Verfahren angesteuerter Piezo-Druckkopf
JP2004055410A (ja) * 2002-07-22 2004-02-19 Advantest Corp バイモルフスイッチ、バイモルフスイッチ製造方法、電子回路、及び電子回路製造方法
US20140333703A1 (en) * 2013-05-10 2014-11-13 Matthews Resources, Inc. Cantilevered Micro-Valve and Inkjet Printer Using Said Valve
WO2019215671A2 (fr) 2018-05-11 2019-11-14 Matthews International Corporation Procédés de fabrication de micro-soupapes et ensembles d'éjection comprenant de telles micro-soupapes
WO2019215668A1 (fr) 2018-05-11 2019-11-14 Matthews International Corporation Micro-soupapes destinées à être utilisées dans des ensembles à jet
WO2019215672A1 (fr) 2018-05-11 2019-11-14 Matthews International Corporation Systèmes et procédés de commande du fonctionnement de micro-vannes destinées à être utilisées dans des ensembles d'éjection
CA3099839A1 (fr) 2018-05-11 2019-11-14 Matthews International Corporation Systemes et procedes d'etancheite de micro-soupape a utiliser dans des ensembles produisant un jet
EP3791098A1 (fr) 2018-05-11 2021-03-17 Matthews International Corporation Structures à électrodes pour micro-vannes destinées à être utilisées dans des ensembles de projection
WO2021087218A1 (fr) 2019-11-01 2021-05-06 Matthews International Corporation Systèmes de dépôt sans contact comprenant des ensembles de projection

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2527647B2 (de) * 1975-06-20 1980-11-20 Siemens Ag, 1000 Berlin Und 8000 Muenchen Mit Flüssigkeitströpfchen arbeitendes Schreibgerät

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56548B2 (fr) * 1973-02-03 1981-01-08
DE2361781A1 (de) * 1973-12-12 1975-06-19 Philips Patentverwaltung Schreibwerk zum schreiben mit fluessiger farbe
JPS5518276A (en) * 1978-07-27 1980-02-08 Seiko Epson Corp Liquid injection apparatus

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2527647B2 (de) * 1975-06-20 1980-11-20 Siemens Ag, 1000 Berlin Und 8000 Muenchen Mit Flüssigkeitströpfchen arbeitendes Schreibgerät

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0119489A3 (en) * 1983-02-22 1985-10-30 Siemens Aktiengesellschaft Writing apparatus functioning with liquid droplets
EP0713773A3 (fr) * 1994-11-24 1997-04-16 Pelikan Produktions Ag Générateur de micro-gouttelettes en particulier pour imprimante à jet d'encre
US5739832A (en) * 1994-11-24 1998-04-14 Pelikan Produktions Ag Droplet generator for generating micro-drops, specifically for an ink-jet printer

Also Published As

Publication number Publication date
EP0062889B1 (fr) 1984-09-05
DE3260645D1 (en) 1984-10-11
DE3114192A1 (de) 1982-10-28
US4409601A (en) 1983-10-11
JPS57178767A (en) 1982-11-04
BR8202012A (pt) 1983-03-15

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