EP0063637A2 - Tête d'enregistrement pour imprimante à jet d'encre avec conduites d'encre cylindriques - Google Patents

Tête d'enregistrement pour imprimante à jet d'encre avec conduites d'encre cylindriques Download PDF

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Publication number
EP0063637A2
EP0063637A2 EP81108327A EP81108327A EP0063637A2 EP 0063637 A2 EP0063637 A2 EP 0063637A2 EP 81108327 A EP81108327 A EP 81108327A EP 81108327 A EP81108327 A EP 81108327A EP 0063637 A2 EP0063637 A2 EP 0063637A2
Authority
EP
European Patent Office
Prior art keywords
ink
channel plate
channels
head
plate
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
EP81108327A
Other languages
German (de)
English (en)
Other versions
EP0063637B1 (fr
EP0063637A3 (en
Inventor
Erich Ing. Kattner
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 Corp
Original Assignee
Siemens AG
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 Corp filed Critical Siemens AG
Publication of EP0063637A2 publication Critical patent/EP0063637A2/fr
Publication of EP0063637A3 publication Critical patent/EP0063637A3/de
Application granted granted Critical
Publication of EP0063637B1 publication Critical patent/EP0063637B1/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
    • B41J2/14—Structure thereof only for on-demand ink jet heads
    • B41J2/14201—Structure of print heads with piezoelectric elements
    • B41J2/1429—Structure of print heads with piezoelectric elements of tubular 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
    • B41J2002/14379—Edge shooter

Definitions

  • the invention relates to a writing head for ink writing devices with cylindrical ink channels running in the writing head and partially enclosed by piezo transducers.
  • the object of the invention is to provide a writing head for ink writing devices of the type specified above, for which the tolerance requirements are reduced, the production of which previously required high amount of manual work can be eliminated, and which can finally be made smaller, at least in its longitudinal dimensions.
  • a printhead that solves this problem is. characterized by the features of claim 1.
  • a major advantage of the proposed arrangement is that the cavity which forms an ink channel consists of several parts which are each assigned to separately producible parts. This makes it possible to machine the head part produced by potting with the ink channels running parallel to one another without the tolerance requirements previously observed. Only the channel plate and the nozzle plate represent precision parts. In a particularly advantageous manner, these can be created with any accuracy using a galvanoplastic process or a photoceramic process.
  • Another advantage is that the drive elements can now be arranged directly at the outlet end of the ink channels in the head part or in the immediate vicinity thereof. This is associated with a significant reduction in the total length of the print head, which in the end results in a desired reduction in the size of a printing unit equipped with such print heads.
  • the fastening element consists of a bracket, the arms of which are designed to be resilient, and which, across the individual parts of the writing head, provide the necessary pressing force for a sealing cohesion of the individual parts. Further details of the invention are given below with reference to an embodiment shown in the drawing.
  • FIG. 1 This shows a print head 1 which contains seven parallel ink channels 2.
  • a piezo transducer in the form of a piezo tube 3 comprising the ink channel is assigned to each ink channel 2.
  • the ink channels 2 are arranged in two rows which are offset from one another.
  • a channel plate 4 directly adjoining the head part 1 has seven ink guide channels 5 corresponding to the number of ink channels, into which the ink channels 2 open on the side facing the head part and which have outlet openings 6 on the other side.
  • the outlet openings 6 are arranged in the row provided for the outlet nozzles. In the exemplary embodiment, they form a row of openings lying one above the other. However, another shape is also possible.
  • the nozzle plate 7 with the nozzle openings 8 is provided as a sealing cover to the outside and to ensure an exact droplet ejection.
  • the nozzle openings 8 correspond to the outlet openings 6 of the channel plate 4 both in terms of their position and their number.
  • a bracket 9 is used for securing the individual parts, namely the head part 1, the channel plate 4 and the nozzle plate 7, the resilient arms 10 of which, after the individual parts have been joined together, reach over them and are latched in recesses 11 in the head part 1. It is advantageous if the bracket 9 covers most of the outer surface of the nozzle plate 7 and has a corresponding recess 12 only in the area of the outlet openings 8. This will increase the pressure force and thus a better seal between reached the individual parts of the print head. If required, a sealing film provided with corresponding openings can be inserted between the individual parts of the writing head to improve the seal.
  • the tolerance requirements that are addressed to the headboard are essentially by strict adherence to a very narrow determined tolerance level of training of the ink discharge openings, but these are in the new arrangement in the channel plate, the tolerance requirements that are addressed to the headboard , less.
  • This can be created, for example, by machine casting.
  • the ink channels in the head part are constant in diameter, that is, for example, they do not taper, which considerably facilitates the threading of guide needles before the casting or the removal of the guide needles after the casting.

Landscapes

  • Particle Formation And Scattering Control In Inkjet Printers (AREA)
EP19810108327 1981-04-29 1981-10-14 Tête d'enregistrement pour imprimante à jet d'encre avec conduites d'encre cylindriques Expired EP0063637B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19813117028 DE3117028A1 (de) 1981-04-29 1981-04-29 Schreibkopf fuer tintenschreibeinrichtungen mit zylinderfoermigen tintenkanaelen
DE3117028 1981-04-29

Publications (3)

Publication Number Publication Date
EP0063637A2 true EP0063637A2 (fr) 1982-11-03
EP0063637A3 EP0063637A3 (en) 1983-08-24
EP0063637B1 EP0063637B1 (fr) 1985-03-13

Family

ID=6131102

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19810108327 Expired EP0063637B1 (fr) 1981-04-29 1981-10-14 Tête d'enregistrement pour imprimante à jet d'encre avec conduites d'encre cylindriques

Country Status (3)

Country Link
EP (1) EP0063637B1 (fr)
JP (1) JPS57182454A (fr)
DE (1) DE3117028A1 (fr)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0183224A1 (fr) * 1984-11-29 1986-06-04 Siemens Aktiengesellschaft Tête d'écriture pour imprimante à jet d'encre
EP0176489A3 (en) * 1984-09-25 1987-03-11 Ing. C. Olivetti & C., S.P.A. Ink-jet printing head, a method for its manufacture, and a tool useable for carrying out this method
GB2182611A (en) * 1985-11-06 1987-05-20 Pitney Bowes Inc Impulse ink jet print head and methods of making the same
EP0260884A3 (en) * 1986-09-17 1989-05-17 International Business Machines Corporation Print head for drop-on-demand ink jet printing apparatus
EP0379781A3 (fr) * 1988-10-31 1991-01-30 Canon Kabushiki Kaisha Dispositif d'enregistrement par jet de liquide
EP0383019A3 (fr) * 1989-01-13 1992-06-17 Canon Kabushiki Kaisha Tête d'enregistrement à jet d'encre, appareil d'enregistrement à jet d'encre et méthode associée de nettoyage
EP0509491A3 (en) * 1991-04-16 1992-11-25 Canon Kabushiki Kaisha Method and apparatus for manufacturing ink jet head
US5185615A (en) * 1990-04-11 1993-02-09 Canon Kabushiki Kaisha Ink jet recording method and apparatus for recovering ejection at a particular orifice by ejecting ink from adjacent orifices
US5752303A (en) * 1993-10-19 1998-05-19 Francotyp-Postalia Ag & Co. Method for manufacturing a face shooter ink jet printing head
EP0790129A3 (fr) * 1996-02-13 1998-10-14 Canon Kabushiki Kaisha Appareil à éjection de liquide, ensemble de tête et cassette à jet d'encre

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3645017C2 (fr) * 1985-09-06 1990-07-12 Fuji Electric Co., Ltd., Kawasaki, Kanagawa, Jp
DE4100730C2 (de) * 1991-01-09 1997-04-03 Francotyp Postalia Gmbh Verfahren für eine Flüssigkeitsstrahl-Druckvorrichtung
DE4424771C1 (de) 1994-07-05 1995-11-23 Francotyp Postalia Gmbh Tintendruckkopf aus einzelnen Tintendruckmodulen

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE7603784L (sv) * 1975-09-29 1977-03-30 Siemens Ag Anordning for kontaktering av elektriska komponenter for ingjutning i arbetsstycken
DE2543420C3 (de) * 1975-09-29 1980-09-11 Siemens Ag, 1000 Berlin Und 8000 Muenchen Piezoelektrisches Antriebselement für Schreibköpfe in Tintenmosaik-Schreibeinrichtungen
DE2728657A1 (de) * 1977-06-24 1979-01-04 Siemens Ag Duesenplatte fuer tintenschreibeinrichtungen

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0176489A3 (en) * 1984-09-25 1987-03-11 Ing. C. Olivetti & C., S.P.A. Ink-jet printing head, a method for its manufacture, and a tool useable for carrying out this method
EP0183224A1 (fr) * 1984-11-29 1986-06-04 Siemens Aktiengesellschaft Tête d'écriture pour imprimante à jet d'encre
GB2182611A (en) * 1985-11-06 1987-05-20 Pitney Bowes Inc Impulse ink jet print head and methods of making the same
GB2182611B (en) * 1985-11-06 1990-09-05 Pitney Bowes Inc Impulse ink jet print head and methods of making the same
EP0260884A3 (en) * 1986-09-17 1989-05-17 International Business Machines Corporation Print head for drop-on-demand ink jet printing apparatus
EP0379781A3 (fr) * 1988-10-31 1991-01-30 Canon Kabushiki Kaisha Dispositif d'enregistrement par jet de liquide
US5095321A (en) * 1988-10-31 1992-03-10 Canon Kabushiki Kaisha Liquid jet recording head joined by a biasing member
US5534898A (en) * 1989-01-13 1996-07-09 Canon Kabushiki Kaisha Ink jet head, ink jet apparatus and wiping method therefor
EP0383019A3 (fr) * 1989-01-13 1992-06-17 Canon Kabushiki Kaisha Tête d'enregistrement à jet d'encre, appareil d'enregistrement à jet d'encre et méthode associée de nettoyage
US5185615A (en) * 1990-04-11 1993-02-09 Canon Kabushiki Kaisha Ink jet recording method and apparatus for recovering ejection at a particular orifice by ejecting ink from adjacent orifices
GB2243338B (en) * 1990-04-11 1994-10-05 Canon Kk Ink jet recording system
EP0509491A3 (en) * 1991-04-16 1992-11-25 Canon Kabushiki Kaisha Method and apparatus for manufacturing ink jet head
US5498306A (en) * 1991-04-16 1996-03-12 Canon Kabushiki Kaisha Method and apparatus for manufacturing ink jet recording head
US5752303A (en) * 1993-10-19 1998-05-19 Francotyp-Postalia Ag & Co. Method for manufacturing a face shooter ink jet printing head
US6070972A (en) * 1993-10-19 2000-06-06 Francotyp-Postalia Ag & Co. Face shooter ink jet printing head
EP0790129A3 (fr) * 1996-02-13 1998-10-14 Canon Kabushiki Kaisha Appareil à éjection de liquide, ensemble de tête et cassette à jet d'encre
US6435648B1 (en) 1996-02-13 2002-08-20 Canon Kabushiki Kaisha Liquid ejection apparatus using air flow to remove mist

Also Published As

Publication number Publication date
EP0063637B1 (fr) 1985-03-13
DE3117028A1 (de) 1982-11-18
EP0063637A3 (en) 1983-08-24
JPS57182454A (en) 1982-11-10

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