EP0713775B1 - Agencement pour une tête d'impression à jet d'encre modulaire - Google Patents

Agencement pour une tête d'impression à jet d'encre modulaire Download PDF

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Publication number
EP0713775B1
EP0713775B1 EP95250260A EP95250260A EP0713775B1 EP 0713775 B1 EP0713775 B1 EP 0713775B1 EP 95250260 A EP95250260 A EP 95250260A EP 95250260 A EP95250260 A EP 95250260A EP 0713775 B1 EP0713775 B1 EP 0713775B1
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EP
European Patent Office
Prior art keywords
carrier layer
ink print
ink
print modules
positioning pieces
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
EP95250260A
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German (de)
English (en)
Other versions
EP0713775A2 (fr
EP0713775A3 (fr
Inventor
Stephan Günther
Ralf Kubatzki
Wolfgang Dr. Thiel
Junming Dr. Zhang
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.)
Francotyp Postalia GmbH
Original Assignee
Francotyp Postalia GmbH
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 Francotyp Postalia GmbH filed Critical Francotyp Postalia GmbH
Publication of EP0713775A2 publication Critical patent/EP0713775A2/fr
Publication of EP0713775A3 publication Critical patent/EP0713775A3/fr
Application granted granted Critical
Publication of EP0713775B1 publication Critical patent/EP0713775B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • B41J2/14233—Structure 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
    • B41J2/14—Structure thereof only for on-demand ink jet heads
    • B41J2002/14379—Edge shooter
    • 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
    • B41J2002/14491—Electrical connection

Definitions

  • the invention relates to an arrangement for an ink print head, that of stacked ink printing modules is composed according to the edge shooter principle work and with plate-shaped piezoelectric actuators are equipped.
  • the ink print head is for use in small fast printers provided, which in turn is part of modern machines for franking mail or for printing addresses. Such a printer is also suitable as a product labeling device.
  • the distance between two neighboring nozzles would be that Pressure density dimension t.
  • the pressure density dimension results from the Quotients from the nozzle spacing of a module by number of the modules.
  • the usual nozzle openings are between 40 to 50 ⁇ m width. With a cliché width of one inch and a resolution of 200 dpi are required here Adjustment errors can be kept below 10 ⁇ m.
  • such ink printheads are in planar respectively Stacked design, on the one hand for reasons of permissible dimensions and packing density to be achieved thereby and on the other hand for reasons of economical production, see the next one State of the art according to DE 42 25 799 A1.
  • Piezo actuators are used in the area transducers a piezoelectric between two metal electrodes Material, for example lead zirconate titanate (PZT) arranged is.
  • PZT lead zirconate titanate
  • the carrier plate - at the same time membrane plate above the ink pressure chambers - for the piezo actuators consist of glass, ceramic, plastic or metal.
  • Spacers are arranged between the modules an ink supply opening and ink through openings as well as a recess for the piezo actuators exhibit.
  • the spacers can be in one piece or be in two parts and are made of the same material as the piezo actuators.
  • connection channels running through several modules are more accurate than that for the ink pressure chambers and a higher adjustment effort required.
  • the connecting channels of different lengths require additional electronic tax measures.
  • each transducer being a planar, piezoelectric Drive element, a pressure chamber, a Has ink channel and a nozzle.
  • the pressure chambers, the ink channels and the nozzles are as cavities in the Piezoceramic body formed.
  • Every drive element has an outer electrode, an inner electrode and an active piezoceramic layer arranged between the electrodes on. The drive elements are through Incisions in the active piezoceramic layer piezoelectric separated from each other.
  • the inner electrodes the transducers are electrically connected to each other.
  • the electrical connection of the outer and inner Electrodes are made via a connecting strap respectively a band leader.
  • a connection goes to each other connected inner electrodes.
  • the outer Electrodes are contacted separately with connections.
  • the bottom and the piezoceramic body the side opposite the nozzle front on one Holding frame attached.
  • An ink port and the connection tape are through openings in the holding frame passed through.
  • an ink print head is known US 4,703,333, in which several ink printing modules work according to the sideshooter principle, so inclined one behind the other are stacked that on the one hand the nozzle area and on the other hand the ink supply area free is.
  • Adapted to this scale-like arrangement is a frame with sloping steps.
  • the ink printing modules are provided with elongated holes, through the screws that are inserted into threaded holes the steps intervene. The modules must have a The gauge is adjusted and then locked using the screws become.
  • the individual ink printing module consists of one Nozzle plate, an ink channel plate, a pressure chamber plate, a membrane plate with piezo actuators and one Cover plate with a recess for a ribbon conductor for contacting the piezo actuators.
  • the cover plate is an ink supply channel with two ink connection sockets incorporated.
  • the purpose of the invention is to simplify the construction of the ink printhead, an enlargement of the area of application, and an improvement in service features.
  • the invention has for its object an arrangement for an ink printhead made up of individual identical Ink printing modules with staggered rows of nozzles to create where the ink printing modules the number of components is easy to replace is reduced and adjustment effort largely avoided becomes.
  • the ribbon conductor is in the area between the ink printing modules according to the invention both as a contact element and also as a spacer and as an adjustment piece for the ink printing modules Complicated housings can be exploited and front masks are eliminated.
  • the carrier layer of the strip conductor in the area between the ink printing modules like this train that this only as an adjustment piece or only acts as a spacer. That could be the case if modified ink printing modules are used.
  • the assembly of the tape conductor ends including Equipped with driver circuits for the piezo actuators and with a connector out of range between the inkjet print modules can accordingly the desired specifications already at the manufacturer of the Band leader done.
  • the ink printing modules can be constructed completely identically his.
  • the offset t is three ink printing modules from module to module one third the nozzle opening distance of a module. If the leader aligned with the previous ink printing module, are those facing the following ink printing module Stop pieces opposite a defined side edge the ink pressure module around the pressure density dimension t offset further than the assigned adapted recesses in the following ink printing module.
  • Opposing pieces of the Determine the offset of adjacent ink printing modules Carrier layer are parallel to in the same direction Front edge offset by the pressure density dimension t to each other. This way it is possible for ink printheads with different number of nozzles respectively the ink modules to the same modules use. The required offset is then alone realizable via the offset of the stop pieces.
  • the recesses for the stop pieces in the ink printing modules are deep in the nozzle plane.
  • the stop pieces are located in these recesses with their cover areas.
  • the distance s between two nozzle levels is determined solely by the distance the top surfaces of opposing stop pieces determined a support layer.
  • the precision the spacing of neighboring nozzle levels is about exact adherence to the top surface distance of the named Stop pieces adjustable.
  • stop pieces are made of a different material, like ceramics or metal, is with the appropriate design an adhesive form also on the design of the adhesive tool and the variation of the adhesive layer the desired accuracy can be achieved.
  • the recesses in the ink printing modules can already in the manufacture of the individual plates of the Ink printing module introduced by means of laser etching or punching become.
  • ink printing modules and the ones in between Tape conductor ends are only stacked on top of each other and then held together non-positively is one easy replacement of the modules possible. Also lie units that can be easily checked. That allows an effective test in the manufacturing process - thus one Increase in the rate of exploitation of ink head manufacturing - and better service. That is very important especially the ink printing modules with their many nozzle openings are still expensive components.
  • the assembly and contacting of the piezo actuators is on Because of the one-piece comb-like design and extension simplified all electrodes in one plane.
  • the production of the piezo combs can be done in a simple manner so be done by first off in a square bar Piezo material is sawn into the tooth structure. Then the piezo combs in the form of Sawed off slices.
  • the contact with the exposed ends of the connecting lines can by means of a low melting Solders, such as indium.
  • an ink print head consists of two identical Ink printing modules 1, 4 and four of the same assigned strip conductors 0, 2, 3, 5, of which the are identical to that of the same ink module side assigned.
  • the first ink printing module 1 is made of a first cover plate 12, a middle plate 13 and a second Cover plate 14 assembled.
  • the plates can by means of Gluing or thermal diffusion bonding with each other be connected.
  • the cover plates 12, 14 are in the middle plate 13 facing surface with ink pressure chambers 123, 143, Ink channels 124, 144, nozzle channels 126, 146 as well Ink supply channels 125, 145 provided, see also Fig. 3.
  • All nozzle openings 147 of the ink printing module 1 run in a row in the second cover plate 14. Zu for this purpose the nozzle channels 126 are from the first Cover plate 12 through the middle plate 13 as nozzle channels 132 and further up to the nozzle channels 146 in the second Cover plate 14 out and end there as nozzle openings 147.
  • Per ink printing module 1, 4 are in this Case sixteen nozzle openings 147, 447 are provided. A real ink printing module, however, will have 64 nozzle openings exhibit.
  • cover plates 12, 14 On the outer surfaces of the cover plates 12, 14 are in the area above the ink pressure chambers 123, 143 piezo actuators 11, 15 placed, each over each ink pressure chamber a piezo actuator.
  • the cover plates 12, 14 are in the areas inevitably over the ink pressure chambers 123, 143 thinner and act there as a membrane. Therefore the designation membrane plate also applies.
  • An alternative would be the cover plates as a thin smooth membrane plate to design and all structures in the middle plate to relocate.
  • piezo actuators 11, 15 in the form of a Comb executed, its back as an inactive area and its tines as an active area of a piezo layer 113, 153 are formed. Every prong poses represents a single piezo actuator, its base and top surface are covered with electrodes 111, 112, 151, 152.
  • An electrode 112, 152 is a common electrode all piezo actuators 11, 15 via an end face, respectively the back of the comb in the inactive area of the Opposite side extends. This can make contact done from one side.
  • the piezo actuators 11, 15 combined in one component on the one hand and on the other are spaced from each other at chamber distance a complex individual application and alignment the ink pressure chambers 123, 143 avoided.
  • the component as a whole can be applied beforehand Marking signs are stuck on.
  • the electrodes 111, 112, 151, 152 are by means of a low melting solder, such as indium, with associated Exposed connecting lines 02, 03, 22, 23 of the Band conductors 0, 2 connected, see also FIGS. 4 and 5.
  • the ribbon conductors lying directly on the ink printing module 1 0.2 are designed so that on the one hand with aligned with the first ink printing module 1 - meaning that that stop pieces and associated recesses are positioned equally in the module in relation to one defined side edge B-, on the other hand to the following second ink printing module 4 an offset to the print density t is effected, see also FIGS. 2, 4 and 5.
  • the thickness of the strip conductors 2 and 3 and 5 and 6 is so dimension that between the ink printing modules 1 and 4 as well as 4 and 5 with their attached piezo actuators 15, 41 and 45, 71 there is a sufficiently large distance.
  • the strip conductor 2 is with stop pieces on both sides 211, 212 provided in the associated adapted recesses 313 of the strip conductor 3 and in recesses 141, 422, 432 of the ink printing modules 1, 4 engage, see also Fig. 1, 3, 4 and 5.
  • the strip conductor 3 has stop pieces on both sides 311, 312 provided in the associated adjusted Recesses 213 of the strip conductor 2 and in Recesses 142, 421, 431 of the ink printing modules 1, 4 intervention.
  • the band conductors 2, 3 for reasons of simplified representation two pairs of stop pieces 211, 212 or 311, 312. In practical implementation it will be conveniently three pairs of stop pieces his. Two groups would then correspond accordingly of the recesses as an elongated hole and a group of recesses be designed as a cylinder hole, see FIG. 4 and 5.
  • the stop piece 211 lies with its top surface in Ink pressure module 1 at the nozzle level 133.
  • the Stop piece 212 lies with its top surface in Ink pressure module 4 at the nozzle level 448.
  • the Parallel distance of the top surfaces of the opposite Stop pieces 211, 212 of a strip conductor 2 are the same the required distance s of the nozzle planes 133, 448 to each other.
  • the plate thickness of the strip conductors 2 and 3 is accordingly dimensioned so that the required distance exclusively through the stop pieces 211, 212 is determined. For this reason, the Stop pieces 311, 312 of the strip conductor 3 shorter than that of the band leader 2. In this case, they act as Fasteners. If the stop pieces 311, 312 with their cover surfaces at the assigned nozzle levels 133, 448 should abut the stop pieces 211, 212 can be made shorter.
  • the stop piece 211 is opposite the stop piece 212 by the plate thickness of the strip conductor 3 and by one Middle plate thickness shorter, since it is only the cover plate 14 penetrates in the recess 141.
  • the stop piece 212 penetrates the strip conductor 3 in the recess 313, the cover plate 42 in the recess 422 and the middle plate 43 in the recess 432.
  • the Recesses 313, 422 and 432 around the pressure density dimension t less offset than the stop piece 212 on the strip conductor 2.
  • the distance between the recesses 313, 422 and 432 the side edge B in this case is dimension c or d.
  • the distance is accordingly Stop pieces 212 c + t or d + t.
  • the Distance of the recesses 142, 213 to the side edge B is c or d and the distance between associated stop pieces 311 is c - t respectively d - t. The same applies to all other band leaders and modules.
  • the strip conductor O is with a recess 014 for the Piezo actuators 11 provided. His stop pieces 012 engage in associated adapted recesses 121 and 131 of the ink printing module 1.
  • the band leader 2 is provided with a recess 214 for the piezo actuators 15.
  • the strip conductor 3 has a recess 314 for the Piezo actuators 41 provided.
  • the ink supply channels 125, 145 are orthogonal to ink channels 124, 144 and parallel to the row of nozzle openings 147.
  • the strip conductor 8 is with a recess 814 for the Piezo actuators 75 provided. His stop pieces 811 engage in associated recesses 741 of the third Ink printing module 7 a. Another deal with the Ink printing modules 4 and 7 are not necessary Information can be found in the reference symbols and the Drawings are taken.

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

Claims (14)

  1. Agencement pour une tête d'impression à encre qui est composée, par empilement, de différents modules d'impression à encre (1,4) identiques fonctionnant selon le principe Edge-Shooter, dont des séries de buse (147, 447) sont décalées d'un interstice les unes par rapport aux autres et qui sont pourvues, à l'extérieur, d'acteurs piézo-électriques en forme de plaque (11, 15, 41, 45) dont les électrodes (111, 112, 151, 152, 411, 412, 451, 452) font le bonding avec des lignes de raccordement (02, 03, 22, 23, 32, 33, 52, 53) d'un conducteur méplat (0, 2, 3, 5) qui sont encastrées dans un substrat (01, 21, 31, 51) enveloppant celles-ci, caractérisé en ce que le substrat (21, 31), outre la véritable fonction de protection pour le conducteur méplat (2, 3), est conçu comme pièce d'écartement destinée à préserver la distance nécessaire entre les modules d'impression à encre (1,4) voisins identiques et comme pièce d'ajustement destinée à la fixation précise des modules d'impression à encre (1, 4) et leur décalage les uns par rapport aux autres, et présente à cet effet des deux côtés, dans la zone située entre les modules d'impression à encre (1, 4), des pièces de butée (211, 212, 311, 312) qui pénètrent dans des évidements adaptés et affectés (121, 131, 141, 142, 421, 431, 432, 441, 442) des modules voisins les uns des autres (1, 4).
  2. Agencement pour une tête d'impression à encre qui est composée, par empilement, des différents modules d'impression à encre (1, 4) identiques fonctionnant selon le principe Edge-Shooter, dont des séries de buse (147, 447) sont décalées d'un interstice les unes par rapport aux autres et qui sont pourvues, à l'extérieur, d'acteurs piézo-électriques en forme de plaque (11, 15, 41, 45) dont les électrodes (111, 112, 151, 152, 411, 412, 451, 452) font le bonding avec des lignes de raccordement (02, 03, 22, 23, 32, 33, 52, 53) d'un conducteur méplat (0, 2, 3, 5) qui sont encastrées dans un substrat (01, 21, 31, 51) enveloppant celles-ci, caractérisé en ce que le substrat (21, 31), outre la véritable fonction de protection pour le conducteur méplat (2, 3), est conçu comme pièce d'écartement destinée à préserver la distance nécessaire entre les modules d'impression à encre (1,4) voisins identiques et comme pièce d'ajustement destinée à la fixation précise des modules d'impression à encre (1, 4), et présente à cet effet des deux côtés, dans la zone située entre les modules d'impression à encre (1, 4), des pièces de butée (211, 212, 311, 312) qui pénètrent dans des évidements adaptés et affectés (121, 131, 141, 142, 421, 431, 432, 441, 442) des modules voisins les uns des autres (1,4).
  3. Agencement pour une tête d'impression à encre qui est composée, par empilement, des différents modules d'impression à encre (1, 4) identiques fonctionnant selon le principe Edge-Shooter, dont des séries de buse (147, 447) sont décalées d'un interstice les unes par rapport aux autres et qui sont pourvues, à l'extérieur, d'acteurs piézo-électriques en forme de plaque (11, 15, 41, 45) dont les électrodes (111, 112, 151, 152, 411, 412, 451, 452) font le bonding avec des lignes de raccordement (02, 03, 22, 23, 32, 33, 52, 53) d'un conducteur méplat (0, 2, 3, 5) qui sont encastrées dans un substrat (01, 21, 31, 51) enveloppant celles-ci, caractérisé en ce que le substrat (21, 31), outre la véritable fonction de protection pour le conducteur méplat (2, 3), est conçu comme pièce d'ajustement destinée à la fixation précise des modules d'impression à encre (1, 4) et leur décalage les uns par rapport aux autres, et présente à cet effet des deux côtés, dans la zone située entre les modules d'impression à encre (1,4), des pièces de butée (211, 212, 311, 312) qui pénètrent dans des évidements adaptés et affectés (121, 131, 141, 421, 431, 432, 441, 442) des modules voisins les uns des autres (1, 4).
  4. Agencement selon la revendication 1 ou 2, caractérisé en ce que les pièces de butée (211, 212 ou 311, 312) d'un substrat (21 ou 31) dans les modules d'impression à encre (1, 4) sont adjacents aux niveaux de buse (133, 148 respectivement 433, 448) et que la distance des surfaces de couverture de pièces de butée opposées (211, 212 ou 311, 322) d'un substrat (21 ou 31) d'un conducteur méplat (2 ou 3) est égale à la distance exigée (s) des niveaux de buse (133 respectivement 148, 433 respectivement 448) de modules d'impression à encre (1, 4) voisins.
  5. Agencement selon la revendication 1 ou 3, caractérisé en ce que le substrat (21) déterminant le décalage s'aligne avec le premier module d'impression à encre (1) et le substrat (31) voisin s'aligne avec le deuxième module d'impression à encre (4) suivant et que les deux dernières pièces de butée en vis-à-vis (212) du substrat (21) pénètrent dans les évidements (313 ainsi 422, 432) adaptés et affectés qui sont décalés de la cote de densité d'impression (t) par rapport à un bord latéral (B) défini vis-à-vis des pièces de butées (212).
  6. Agencement selon la revendication 5, caractérisé en ce que les pièces de butées (211, 212) opposées les unes aux autres du substrat (21) déterminant le décalage de modules d'impression à encre (1, 4) voisins, sont décalées les unes par rapport aux autres dans le même sens, parallèlement au bord frontal, de la cote de densité d'impression (t), et orthogonalement par rapport à celui-ci.
  7. Agencement selon la revendication 1 à 3 et 5, caractérisé en ce que les substrats (21, 31) des conducteurs méplats (2, 3) sont pourvus des évidements (213, 313) pour les pièces de butée (311, 212) affectées et des évidements (214, 314) pour les acteurs piézo-électriques (15, 41) affectés.
  8. Agencement selon la revendication 1 à 3, caractérisé en ce que les pièces de butée (211, 212, 311, 312) sont formées par épaississement et conformation du substrat (21, 31).
  9. Agencement selon la revendication 1 à 3, caractérisé en ce que les pièces de butée (211, 212, 311, 312) sont en céramique.
  10. Agencement selon la revendication 1 à 3, caractérisé en ce que les pièces de butée (211, 212, 311, 312) sont en métal.
  11. Agencement selon la revendication 9 et 10, caractérisé en ce que les pièces de butée (211, 212, 311, 312) sont collées sur le substrat (21, 31).
  12. Agencement selon la revendication 1 à 3, caractérisé en ce que le substrat (21, 31) se compose d'une matière de construction comme le kapton.
  13. Agencement selon la revendication 1 à 3 et 7, caractérisé en ce que le substrat (21, 31) du conducteur méplat (2, 3) est enlevé dans la zone située au-dessus des acteurs piézo-électriques (11, 15, 41, 45) et les lignes de raccordement (02, 03, 22, 23, 32, 33) ainsi dégagées sont reliées aux électrodes affectées (111, 112, 151, 152, 411, 412, 451, 452) des acteurs piézo-électriques (11, 15, 41, 45).
  14. Agencement selon la revendication 13, caractérisé en ce que les lignes de raccordement (02, 03, 22, 23, 32, 33) sont reliées aux électrodes affectées (111, 112, 151, 152, 411, 412, 451, 452) au moyen d'un métal d'apport de brasage de basse fusion comme l'indium.
EP95250260A 1994-11-25 1995-10-27 Agencement pour une tête d'impression à jet d'encre modulaire Expired - Lifetime EP0713775B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4443244 1994-11-25
DE4443244A DE4443244C2 (de) 1994-11-25 1994-11-25 Anordnung für einen Tintendruckkopf aus einzelnen Tintendruckmodulen

Publications (3)

Publication Number Publication Date
EP0713775A2 EP0713775A2 (fr) 1996-05-29
EP0713775A3 EP0713775A3 (fr) 1997-07-09
EP0713775B1 true EP0713775B1 (fr) 1999-10-06

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EP95250260A Expired - Lifetime EP0713775B1 (fr) 1994-11-25 1995-10-27 Agencement pour une tête d'impression à jet d'encre modulaire

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US (1) US5870118A (fr)
EP (1) EP0713775B1 (fr)
DE (2) DE4443244C2 (fr)

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DE3805279A1 (de) * 1988-02-19 1989-08-31 Siemens Ag Piezoelektrischer tintendruckkopf und verfahren zu seiner herstellung
DE69127258D1 (de) * 1990-11-13 1997-09-18 Citizen Watch Co Ltd Tintenstrahldruckkopf
GB2264086B (en) * 1992-01-31 1996-02-07 Citizen Watch Co Ltd Ink jet head and method for driving the same
JP2843199B2 (ja) * 1992-03-26 1999-01-06 株式会社テック インクジェットプリンタヘッドの製造方法
DE4225799A1 (de) * 1992-07-31 1994-02-03 Francotyp Postalia Gmbh Tintenstrahldruckkopf und Verfahren zu seiner Herstellung
DE4309255A1 (de) * 1993-03-16 1994-09-22 Francotyp Postalia Gmbh Modularer Tintenstrahldruckkopf

Also Published As

Publication number Publication date
DE59506985D1 (de) 1999-11-11
DE4443244C2 (de) 2000-04-06
EP0713775A2 (fr) 1996-05-29
US5870118A (en) 1999-02-09
DE4443244A1 (de) 1996-05-30
EP0713775A3 (fr) 1997-07-09

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