EP0145066A2 - Tête microplanaire d'impression à jet d'encre - Google Patents

Tête microplanaire d'impression à jet d'encre Download PDF

Info

Publication number
EP0145066A2
EP0145066A2 EP84201685A EP84201685A EP0145066A2 EP 0145066 A2 EP0145066 A2 EP 0145066A2 EP 84201685 A EP84201685 A EP 84201685A EP 84201685 A EP84201685 A EP 84201685A EP 0145066 A2 EP0145066 A2 EP 0145066A2
Authority
EP
European Patent Office
Prior art keywords
pressure chambers
plate
elevations
print head
piezoceramic
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
EP84201685A
Other languages
German (de)
English (en)
Other versions
EP0145066B1 (fr
EP0145066A3 (en
Inventor
Michael Döring
Horst-Kurt Bentin
Hermann-Franz-Ludwig Maier
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.)
Philips Intellectual Property and Standards GmbH
Koninklijke Philips NV
Original Assignee
Philips Patentverwaltung GmbH
Philips Gloeilampenfabrieken NV
Koninklijke Philips Electronics NV
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 Philips Patentverwaltung GmbH, Philips Gloeilampenfabrieken NV, Koninklijke Philips Electronics NV filed Critical Philips Patentverwaltung GmbH
Publication of EP0145066A2 publication Critical patent/EP0145066A2/fr
Publication of EP0145066A3 publication Critical patent/EP0145066A3/de
Application granted granted Critical
Publication of EP0145066B1 publication Critical patent/EP0145066B1/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
    • B41J2/16—Production of nozzles
    • B41J2/1607—Production of print heads with piezoelectric elements
    • B41J2/161—Production of print heads with piezoelectric elements of film type, deformed by bending and disposed on a diaphragm
    • 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
    • B41J2/16—Production of nozzles
    • B41J2/1621—Manufacturing processes
    • B41J2/1632—Manufacturing processes machining
    • 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
    • B41J2/16—Production of nozzles
    • B41J2/1621—Manufacturing processes
    • B41J2/164—Manufacturing processes thin film formation
    • B41J2/1643—Manufacturing processes thin film formation thin film formation by plating
    • 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 ink jet printhead with a plate-shaped base body, in which a plurality of ink channels run, which open out on a flat side of the base body in nozzles and on the opposite side in separate pressure chambers, which are connected to an ink supply system, with one common to all pressure chambers Membrane plate, and with a one-piece piezoceramic plate connected to the membrane plate, which has a bump in the area of each pressure chamber, the bumps carrying layered electrodes provided with electrical connections.
  • Such an ink jet print head is already known from DE-AS 22.56 667.
  • the respective elevations of the piezoceramic plate have flat dimensions which correspond to the dimensions of the pressure chambers arranged below them. If these dimensions are reduced, so that the density of the ink channels or pressure chambers present in the base body can be increased, there are strong influences on the vibration behavior of the piezoceramic elevations when the electrode layers are contacted by means of electrical wires if the contacting wire is arranged above the pressure chamber is because with these small dimensions of the elevations, the contact wire has a mass comparable to them. If this mass is applied in the area of the deflection, the resonance behavior of the piezoceramic elevations changes and thus also the control voltage necessary for the ejection of a drop.
  • the object of the invention is to provide an ink jet print head of the type mentioned, in which the resonance behavior of the piezoceramic elevations by contacting wires remains unaffected even with very high density of the pressure chambers in the base body or with very small flat dimensions of the piezoceramic elevations.
  • This object is achieved according to the invention in that the elevations of the piezoceramic plate extend at least partially beyond the area of the pressure chambers, and in that the electrical connections are connected to the electrodes outside the area of the pressure chambers.
  • the contact point of the electrode surface comes to lie outside the actual bending area of a piezoceramic elevation.
  • the pressure chambers within an ink jet print head are conical or cylindrical, so that they have a circular cross section.
  • the piezoceramic elevations arranged above the pressure chambers can likewise have this cross section and can be provided with a tab only at one point which projects beyond this cross section and is used for contacting.
  • the elevations of the piezoceramic plate lying above the pressure chambers can be of a square or diamond-shaped design. It has been shown that these elevations arranged on pressure chambers with, for example, a circular cross section are just the same show dynamic behavior like circular surveys. So far it has been assumed that the geometry of the elevations must correspond as closely as possible to the geometry of the pressure chambers.
  • the aforementioned square or diamond-shaped elevations can be produced in a simple manner with the aid of saw cuts in the piezoceramic plate, the piezoceramic plate being sawn through to about 90% and the membrane plate underneath not being damaged.
  • the circular pressure chambers underneath are completely covered by the squares or parallelograms, so that there is sufficient space in the corner points of the squares or parallelograms for the attachment of electrical contact wires.
  • the pressure chambers are arranged in a matrix, each pressure chamber on the other side of the base body being directly opposite a nozzle.
  • the invention enables a relatively small configuration of the piezoceramic elevations and thus also of the pressure chambers arranged below them, so that they can be arranged with a very high density within an ink jet print head. It is thus possible to create a distribution of piezoceramic elevations which corresponds to the usual distribution of the nozzles on the other side of the base body, i.e. the piezoceramic elements have the same average spacing as the nozzles.
  • the ink channels run perpendicular to the flat extension of the base body and connect the directly opposite pressure chambers or nozzles. Of course, the ink channels can also be inclined to one another.
  • such an ink jet print head Due to the relatively short ink channels, such an ink jet print head has a very high resonance frequency of the liquid system and thus a very large drop rate.
  • piezoceramic elevations according to the invention in connection with the very short print channels also allows the construction of very small ink jet print heads.
  • the ceramic plate carries further elevations provided with layered electrodes, which lie between the pressure elements.
  • the contact wires are first guided from the piezoceramic elevations arranged above the pressure chambers to electrodes to which the connecting lines can be attached. This measure serves to additionally secure the elevations arranged above the pressure chambers, since it is no longer necessary to pay attention to the vibrating regions of the elevations when contacting the connecting lines with these electrodes.
  • the piezoceramic plate carries a membrane plate which is galvanically applied to it on the side facing away from the elevations and which consists, for example, of a nickel layer.
  • Fig. 1 shows a microplanar ink jet print head according to the invention. It consists of an outer bracket 1 with two side tabs 2 and 3, which are provided with inwardly facing lugs 4 and 5. The other components of the inkjet print head are clamped and secured between these shoulders 4 and 5 and the upper inside of the holding bracket 1.
  • the bracket 1 has on its top an electrical terminal block 6, which is equipped with individual plug contacts 7, via which electrical connections to the electrically controllable printing elements in the interior of the ink jet print head are made. Furthermore, an ink supply nozzle 8 is provided on the upper side of the holding bracket 1 and is connected to the pressure chambers and the nozzles via an ink supply system.
  • the plate combination 9, 10 there is an opening 11 through which the in the ink introduction 8th introduced ink runs into the ink supply system.
  • the piezoceramic plate 10 has individual elevations 12, which are arranged on it in a matrix, i.e. in the form of columns and rows. These elevations 12 are created, for example, by sawing the piezoceramic plate 10. The plate 10 is sawed through to about 90% without damaging the underlying plate 9.
  • the elevations 12 can also be produced in other ways, for example by photochemical means using a suitable exposure and subsequent etching process.
  • Layered electrodes 13 are applied to the elevations 12, via which an electrical field can be applied in connection with the metallic membrane layer 9.
  • the electrode layers 13 are contacted with connecting wires 14, which establish an electrical connection between the electrode layers 13 and further electrode layers 15, which are likewise arranged on piezoceramic elevations 16.
  • These elevations 16 serve as quasi support points for the electrode layers 15, from which the electrical connecting lines 17 to the plug contacts 7 then depart.
  • the piezoceramic elevations 13 are arranged on the piezoceramic plate 10 so that they come to lie exactly above the pressure chambers 18, which are arranged within a base body 19, to which the plate combination 9, 10 is applied.
  • the pressure chambers 18 are conical and run, for example, perpendicular to the plane of the plate 19. They have a circular cross section in the plane of the plate. On the side opposite the membrane plate 9, this is not greater than the edge length of a square elevation 12, so that it completely covers the pressure chamber 18.
  • the connecting wires 14 In order to prevent the connecting wires 14 from impermissibly impairing the vibration properties of the elevations 12, they are electrically connected to the respective electrode layer 13 in the corner points of the elevations 12. A connecting wire 14 thus contacts an electrode layer 13 only in an area which does not come to lie over a pressure chamber 18. Elevations 12 designed and contacted in this way behave in their vibration properties practically the same as elevations that are completely adapted to the cross section of the pressure chambers 18, that is to say circular elevations. However, from a certain size, these can no longer be easily contacted with connecting wires, since the connecting wires then adversely affect the vibration behavior.
  • the pressure chambers 18 present in the base body 19 are connected to one another by an ink supply system which consists of individual ink conductors 20, 21.
  • the base body 19 can consist, for example, of etchable glass, silicon, steel or another hard material.
  • This base body 19 can also be constructed from two separate layers, one layer containing only the pressure chambers 18 and the second layer only the ink supply system. In any case, the thickness of the base body 19 can be kept small, so that a printhead with an extremely low height results.
  • nozzle plate 22 Below the base body 19 is a nozzle plate 22, the nozzles 23 of which come to coincide with the pressure chambers 18 in the base body 19.
  • This nozzle plate 22 can be produced using conventional technology and is firmly connected to the base body 19 by means of suitable measures. Pressure chambers 18 and nozzles 23 form an ink channel.
  • the F ig. 2a shows a diagonal section through a piezoceramic projection 12 in the direction of arrow A in F ig. 1, while FIG. 2b represents such a section in the direction of arrow B of FIG. 1.
  • FIG. 2b represents such a section in the direction of arrow B of FIG. 1.
  • the connecting wire 14 is attached, for example soldered or g eb ondet, to a point on the electrode 13 which lies laterally next to the pressure channel formed by the pressure chamber 18 and the nozzle 23.
  • this connecting wire 14 is guided to a further electrode layer 15, which lies on the further elevation 16 as a base for the connecting wire 14.
  • This further electrode layer 15 is divided, so that two support contacts are formed on the elevation 16.
  • Ig by F. 2b is the connecting wire only apparently 14 via the D üsenkanal. Rather, it is actually located here next to the pressure chamber 18, since the piezoceramic elevation 12 has a square cross section and the pressure chamber 18 has a circular outer section.
  • the ink supply lines 21 open into the top of the pressure chambers 18. They are connected via the encryption sor supply line 20 with the ink inlet connection. 8 In operation, the ink supply system and thus also the pressure chambers 18 and the nozzles 23 are filled with ink.
  • the elevations 12, which work as pressure generators are excited to vibrate, which via the membrane plate 9 affect the liquid inside the pressure chambers 18 transfer. These vibrations cause the ink to escape from the pressure chambers 18 via the nozzles 23 and adjoining nozzle edges 24.
  • the pressure chambers 18 can also be cylindrical or in another suitable manner.
  • the membrane plate 9 has for example a thickness of 50 /, while the piezo-ceramic plate 10 or an elevation / um to 200 12 100 / um thick.
  • the membrane plate 9 can also be replaced by a plate with a different size than that which is galvanically applied to the piezoceramic plate 10.
  • the flat dimensions of the piezoceramic elevations 12 are approximately in the range from 0.4 to 0.6 mm.
  • the further elevations 16 can also be dispensed with.
  • the connecting wires 14 are led directly from the electrode layers 13 to the plug contacts 7.
  • 3a to c different embodiments of the piezoceramic elevations of the piezoceramic plate 10 are shown.
  • 3a shows the square-shaped elevation 12 already discussed, which is arranged above a pressure chamber 18 with a circular cross-section. Their diameter corresponds to the edge length of the square elevation 12.
  • the connecting wire 14 is connected to the layered electrode applied to the elevation 12 at a point which lies outside the pressure chamber 18.
  • 3b shows a diamond-shaped piezoceramic elevation 12a, which is likewise arranged above a pressure chamber 18a with a circular cross section and completely covers it.
  • a connecting wire 14a is connected at the point outside the pressure chamber 18a to the electrode lying on the elevation 12a, which is delimited by two sides of the elevation 12a which run at an acute angle to one another.
  • FIG. 3c shows a likewise possible circular piezoceramic elevation 12b, the diameter of which corresponds to the diameter of the pressure chamber 18b arranged beneath it, and which is provided with an additional tab 12c for contacting a connecting wire 14b.
  • the ink jet print head according to the invention can be mass-produced and inexpensively manufactured and, due to its small dimensions, enables very high drop rates.
  • the size of the printhead is now on the order of the size of previous nozzle plates, but is thicker than this.

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Particle Formation And Scattering Control In Inkjet Printers (AREA)
EP84201685A 1983-11-26 1984-11-20 Tête microplanaire d'impression à jet d'encre Expired EP0145066B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3342844 1983-11-26
DE19833342844 DE3342844A1 (de) 1983-11-26 1983-11-26 Mikroplanarer tintenstrahldruckkopf

Publications (3)

Publication Number Publication Date
EP0145066A2 true EP0145066A2 (fr) 1985-06-19
EP0145066A3 EP0145066A3 (en) 1987-01-28
EP0145066B1 EP0145066B1 (fr) 1989-05-10

Family

ID=6215350

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84201685A Expired EP0145066B1 (fr) 1983-11-26 1984-11-20 Tête microplanaire d'impression à jet d'encre

Country Status (5)

Country Link
US (1) US4599628A (fr)
EP (1) EP0145066B1 (fr)
JP (1) JPS60135262A (fr)
CA (1) CA1229014A (fr)
DE (2) DE3342844A1 (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1987007218A1 (fr) * 1986-05-30 1987-12-03 Siemens Aktiengesellschaft Pompe de fluide a actionnement piezoelectrique
WO1987007217A1 (fr) * 1986-05-30 1987-12-03 Siemens Aktiengesellschaft Tete d'ecriture a l'encre avec membrane a excitation piezoelectrique
EP0314486A3 (fr) * 1987-10-30 1990-01-10 Hewlett-Packard Company Réalisation de Canaux en accord hydraulique
EP0327802A3 (fr) * 1988-02-11 1990-01-31 AEG Olympia Office GmbH Méthode pour équiper une tête à jet d'encre avec des cristaux piézo-électriques d'impression
EP0505188A3 (en) * 1991-03-19 1993-05-19 Brother Kogyo Kabushiki Kaisha Piezoelectric ink droplet ejecting device
WO1996017728A1 (fr) * 1994-12-05 1996-06-13 Philips Electronics N.V. Dispositif d'enregistrement a jet d'encre

Families Citing this family (39)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4680595A (en) * 1985-11-06 1987-07-14 Pitney Bowes Inc. Impulse ink jet print head and method of making same
US4803499A (en) * 1986-02-27 1989-02-07 Soartec Corp Moveable ink jet thermal printing head
US4742365A (en) * 1986-04-23 1988-05-03 Am International, Inc. Ink jet apparatus
US4695854A (en) * 1986-07-30 1987-09-22 Pitney Bowes Inc. External manifold for ink jet array
US4879568A (en) * 1987-01-10 1989-11-07 Am International, Inc. Droplet deposition apparatus
US4779099A (en) * 1987-02-24 1988-10-18 Dataproducts Corporation Clamp for and method of fabricating a multi-layer ink jet apparatus
JP2806386B2 (ja) * 1988-02-16 1998-09-30 富士電機株式会社 インクジェット記録ヘッド
DE3814150A1 (de) * 1988-04-27 1989-11-09 Draegerwerk Ag Ventilanordnung aus mikrostrukturierten komponenten
GB8910961D0 (en) * 1989-05-12 1989-06-28 Am Int Method of forming a pattern on a surface
US5703632A (en) * 1989-09-18 1997-12-30 Canon Kabushiki Kaisha Ink jet head orifice plate mounting arrangement
US5189443A (en) * 1989-09-18 1993-02-23 Canon Kabushiki Kaisha Recording head having stress-minimizing construction
EP0578329B1 (fr) * 1989-09-18 1996-03-13 Canon Kabushiki Kaisha Tête d'enregistrement à jet d'encre et appareil à jet d'encre ayant celle-ci
US5406318A (en) * 1989-11-01 1995-04-11 Tektronix, Inc. Ink jet print head with electropolished diaphragm
US5087930A (en) * 1989-11-01 1992-02-11 Tektronix, Inc. Drop-on-demand ink jet print head
JP3041952B2 (ja) * 1990-02-23 2000-05-15 セイコーエプソン株式会社 インクジェット式記録ヘッド、圧電振動体、及びこれらの製造方法
US6186619B1 (en) 1990-02-23 2001-02-13 Seiko Epson Corporation Drop-on-demand ink-jet printing head
DE4127860A1 (de) * 1991-08-22 1993-02-25 Deutsche Aerospace Pumpensystem zur foerderung von fluessigen oder gasfoermigen medien
US5764257A (en) * 1991-12-26 1998-06-09 Seiko Epson Corporation Ink jet recording head
DE69233523T2 (de) * 1991-12-26 2006-03-16 Seiko Epson Corp. Tintenstrahldruckkopf
US5574488A (en) * 1993-12-22 1996-11-12 Canon Kabushiki Kaisha Liquid jet head, liquid jet head cartridge, and liquid jet apparatus
US5659346A (en) * 1994-03-21 1997-08-19 Spectra, Inc. Simplified ink jet head
US5474032A (en) * 1995-03-20 1995-12-12 Krietzman; Mark H. Suspended feline toy and exerciser
DE4443245C2 (de) * 1994-11-25 2000-06-21 Francotyp Postalia Gmbh Modul für einen Tintendruckkopf
EP0755790A1 (fr) 1995-07-25 1997-01-29 Koninklijke Philips Electronics N.V. Dispositif d'enregistrement à jet d'encre
EP0799134A1 (fr) * 1995-10-23 1997-10-08 Koninklijke Philips Electronics N.V. Dispositif enregistreur a jet d'encre
US6371604B1 (en) * 1995-11-09 2002-04-16 Canon Kabushiki Kaisha Ink jet recording head assembly having an urging member for contacting components thereof, the urging member having an ink supply mechanism, and ink jet head cartridge and ink jet apparatus having the same
US5943079A (en) * 1995-11-20 1999-08-24 Brother Kogyo Kabushiki Kaisha Ink jet head
DE19548220A1 (de) * 1995-12-22 1997-06-26 Hahn Schickard Ges Vorrichtung zur Regelung des Durchflusses einer Flüssigkeit
KR0185329B1 (ko) * 1996-03-27 1999-05-15 이형도 기록액의 운동 관성을 이용한 기록 장치
CA2253418A1 (fr) * 1996-05-06 1997-11-13 Herbert Daniel Vargas Iii Reservoir d'encre auxiliaire, systeme et procede d'alimentation destines aux cartouches a jet d'encre
US20010013884A1 (en) * 1996-09-30 2001-08-16 Richard G. Crystal Ink jet cartridge refill system, kit, station, and method
EP0917509B1 (fr) * 1996-10-30 2001-12-12 Koninklijke Philips Electronics N.V. Tete d'impression a jet d'encre et imprimante a jet d'encre
GB9713872D0 (en) 1997-07-02 1997-09-03 Xaar Ltd Droplet deposition apparatus
US6422684B1 (en) * 1999-12-10 2002-07-23 Sensant Corporation Resonant cavity droplet ejector with localized ultrasonic excitation and method of making same
US7575298B2 (en) * 2002-04-12 2009-08-18 Silverbrook Research Pty Ltd Inkjet printhead with ink supply passage to nozzle etched from opposing sides of wafer
US7399069B2 (en) * 2004-10-13 2008-07-15 Hewlett-Packard Development Company, L.P. Fluid-ejection device connector
US7530675B2 (en) * 2006-07-20 2009-05-12 Xerox Corporation Piezoelectric actuator device
JP5434932B2 (ja) * 2010-08-23 2014-03-05 ブラザー工業株式会社 液体吐出ヘッド及びその製造方法
JP6980027B2 (ja) * 2017-07-15 2021-12-15 新科實業有限公司SAE Magnetics(H.K.)Ltd. 薄膜圧電アクチュエータ

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5569473A (en) * 1978-11-17 1980-05-26 Seiko Epson Corp Ink jet recording head
JPS5586767A (en) * 1978-12-23 1980-06-30 Seiko Epson Corp Print head
DE2927488A1 (de) * 1979-07-07 1981-01-22 Philips Patentverwaltung Tintenstrahldrucker
DE3028404A1 (de) * 1980-07-26 1982-07-22 NCR Corp., 45479 Dayton, Ohio Tintenstrahldrucker
US4370663A (en) * 1980-12-03 1983-01-25 Xerox Corporation Thin body ink drop generator
US4520374A (en) * 1981-10-07 1985-05-28 Epson Corporation Ink jet printing apparatus
JPS58102774A (ja) * 1981-12-14 1983-06-18 Nec Corp インクジエツト記録装置
US4611219A (en) * 1981-12-29 1986-09-09 Canon Kabushiki Kaisha Liquid-jetting head

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1987007218A1 (fr) * 1986-05-30 1987-12-03 Siemens Aktiengesellschaft Pompe de fluide a actionnement piezoelectrique
WO1987007217A1 (fr) * 1986-05-30 1987-12-03 Siemens Aktiengesellschaft Tete d'ecriture a l'encre avec membrane a excitation piezoelectrique
US4888598A (en) * 1986-05-30 1989-12-19 Siemens Aktiengesellschaft Ink writing head with piezoelectrically excitable membrane
EP0314486A3 (fr) * 1987-10-30 1990-01-10 Hewlett-Packard Company Réalisation de Canaux en accord hydraulique
EP0327802A3 (fr) * 1988-02-11 1990-01-31 AEG Olympia Office GmbH Méthode pour équiper une tête à jet d'encre avec des cristaux piézo-électriques d'impression
EP0505188A3 (en) * 1991-03-19 1993-05-19 Brother Kogyo Kabushiki Kaisha Piezoelectric ink droplet ejecting device
US5245244A (en) * 1991-03-19 1993-09-14 Brother Kogyo Kabushiki Kaisha Piezoelectric ink droplet ejecting device
WO1996017728A1 (fr) * 1994-12-05 1996-06-13 Philips Electronics N.V. Dispositif d'enregistrement a jet d'encre
US5801733A (en) * 1994-12-05 1998-09-01 U.S. Philips Corporation Ink jet recording device

Also Published As

Publication number Publication date
EP0145066B1 (fr) 1989-05-10
EP0145066A3 (en) 1987-01-28
JPS60135262A (ja) 1985-07-18
DE3342844A1 (de) 1985-06-05
DE3478097D1 (de) 1989-06-15
CA1229014A (fr) 1987-11-10
US4599628A (en) 1986-07-08

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