EP0532406B1 - Druckmodul mit Mehrfachdüsen und Drucker unter Verwendung mehrerer Module - Google Patents

Druckmodul mit Mehrfachdüsen und Drucker unter Verwendung mehrerer Module Download PDF

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Publication number
EP0532406B1
EP0532406B1 EP92402453A EP92402453A EP0532406B1 EP 0532406 B1 EP0532406 B1 EP 0532406B1 EP 92402453 A EP92402453 A EP 92402453A EP 92402453 A EP92402453 A EP 92402453A EP 0532406 B1 EP0532406 B1 EP 0532406B1
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EP
European Patent Office
Prior art keywords
multijet
printing module
module according
supporting beam
piece element
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
EP92402453A
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English (en)
French (fr)
Other versions
EP0532406A1 (de
Inventor
Arthur Soucemarianadin
Thierry Colombat
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.)
MARKEM - IMAJE
Original Assignee
Imaje SA
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Publication date
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Publication of EP0532406A1 publication Critical patent/EP0532406A1/de
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F31/00—Inking arrangements or devices
    • 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
    • B41J2/07—Ink jet characterised by jet control
    • B41J2/075—Ink jet characterised by jet control for many-valued deflection
    • B41J2/08—Ink jet characterised by jet control for many-valued deflection charge-control type
    • B41J2/09—Deflection means
    • 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
    • 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
    • B41J2/17—Ink jet characterised by ink handling
    • B41J2/18—Ink recirculation systems
    • B41J2/185—Ink-collectors; Ink-catchers
    • 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
    • B41J2/17—Ink jet characterised by ink handling
    • B41J2/18—Ink recirculation systems
    • B41J2/185—Ink-collectors; Ink-catchers
    • B41J2002/1853—Ink-collectors; Ink-catchers ink collectors for continuous Inkjet printers, e.g. gutters, mist suction means

Definitions

  • the invention relates to printing devices with deflected continuous ink jets and more particularly in such devices, a module or printhead which supplies several simultaneous jets and which lends itself to an assembly of several juxtaposed printing modules. making it possible to maintain a constant pitch between jets in order to obtain a very wide printing apparatus.
  • the head comprises, in a single housing, at least two modulation bodies comprising ejection nozzles supplied by a single ink circuit and a device for recovering unused drops, common to all jets, with only one recovery outlet.
  • the single housing has a base which serves as a support for the modulation bodies, for charge electrodes, for phase or speed detection electrodes and for deflection electrodes, these various elements having to be precisely aligned, from the order of a hundredth of a millimeter.
  • a print head of this type does not lend itself well to making a row of several tens of ink jets because its cost of manufacture and maintenance will be very high.
  • Patent US-A-4,160,982 describes an ink jet printing device in which the charge and deflection electrodes are carried by an arm whose pivoting makes it possible to clear the space between the ejection head inkjet and the gutter and, in particular, to allow the gutter to be raised near the ejection head.
  • the gutter is not fixed, which poses problems of manufacturing and mounting tolerance and makes it practically impossible to produce a multijet head as well as the juxtaposition of several multijet heads.
  • An object of the present invention is therefore to produce a multijet module or print head, the manufacture of which is considerably simplified while having great positioning precision for the various elements.
  • Another object of the present invention is to produce a multijet printing module which can be associated with one or more modules of the same type so as to produce a large width printing apparatus and to ensure the connection of screens between the different modules.
  • the one-piece body is carried by one face of a support beam, the other face of which carries the fourth, fifth and sixth means.
  • the different means communicate with each other by conduits arranged inside the one-piece body and the beam.
  • the invention also relates to a printing apparatus which comprises a plurality of printing modules juxtaposed on said support beam, so as to respect the pitch between jets.
  • the side of the support beam 28, opposite to that carrying the one-piece body 29 of each printing module, is associated with a single part 30 which produces, in combination with said beam 28, a recovery or drain tank 62 of the ink from the recovery gutters of the nine printing modules and, in combination with a plate 110, a cavity 111, for distributing the ink to the nine devices 33 for generating eight ink jets.
  • the support beam 28 has internal conduits which make the connection between, on the one hand, the recovery tank 62 and, on the other hand, the gutters 34 and the generation devices 33 of the nine printing modules mounted on the support beam 28. It also includes other internal conduits for making the connection between the distribution cavity 111 and the generation devices 33.
  • FIGS. 2a and 2b are essentially schematic sections to support the description and are not actual sections of the device. This is how the conduits shown there are not always in the section plane but in parallel planes.
  • FIG. 2b corresponds essentially to the plane of the emptying or purging conduits of the reservoir 35 and of the gutters 34 of a printing module but the conduit 73 is not in the same plane (see FIG. 6c) .
  • FIG. 2a essentially corresponds to the plane of the supply conduits of the reservoir 35 but the conduit 69 is not in the same plane (see FIG. 6a) as well as the recovery circuit 59.
  • the device 33 for generating eight ink jets comprises a stimulation reservoir 35 which is fixed to the one-piece piece 29 in which are drilled, on the one hand, a conduit 37 for supplying ink to the reservoir 35 and, on the other hand, a pipe 72 for purging this tank.
  • the liquid, contained in the reservoir 35 is pulsed or ejected in the form of jets towards the outside of said reservoir in the direction of the gutter 34 through micro-orifices 36 drilled in a nozzle plate 39 integral with the lower part of the reservoir 35.
  • Such ejection means as well as the nozzle plate are for example described in French Patent No. 2,576,251.
  • each jet of liquid breaks up into microdroplets and passes through the deflection head multijet 32 where certain drops are electrically charged by charging electrodes 41 then deflected from their initial trajectory towards the gutter 34 by deflection electrodes 42 to make an impact outside of this on a support 40 to be printed which scrolls in front of the print module.
  • the first element 135 is a block of insulating material which serves as a reference for stacking the other elements and their positioning relative to the device which supplies the ink jets.
  • the second element 136 is a first shielding plate which is made of insulating material, the face of the side of the stop 135 is metallized except around the alignment holes.
  • the fourth element 138 is a second shielding plate which is made of insulating material, the face of the side opposite to that of the charging electrode plate 137 is metallized except around the alignment holes.
  • the fifth element 139 is an electrical isolation spacer made by a plate of insulating material.
  • the sixth element 140 is a third shielding plate which is made of insulating material whose face on the side of the stop 135 is metallized except around the alignment holes.
  • the eighth element 142 is a fourth shielding plate which is made of insulating material, the face of the side opposite to that of the detection electrode plate 141 is metallized except around the alignment holes.
  • the elements 136 to 142 are pierced with slots parallel to the path of the non-deflected ink jet, some 153 of sufficient depth to partially pass through the electrodes 146 and 148 and thus allow the passage of the ink jets, and the others 154 of greater depth than the previous ones to delimit spaces of equal width between the inserts and reduce crosstalk between the jets.
  • the slots 153 are metallized only at the location of the electrodes while the slots 154 are metallized over their entire depth.
  • the ninth, tenth and eleventh elements 143, 144 and 145 together constitute the deflection electrodes of the drops of the ink jets and are each produced by blocks of insulating material in which deep grooves separate partitions whose walls are metallized.
  • the metallized walls of the tenth element 144 are connected to supply conductors such as that referenced 152.
  • the insulating material of the various elements is, for example, ceramic, the characteristics of which allow it to be machined, in particular in thickness, with an accuracy of the order of a few microns.
  • the four armor plates 136, 138, 140 and 142 each have a thickness of 0.5 millimeter for example and the metal layer is made of a noble material, a gold alloy for example, which makes it possible to avoid EDM and which has a thickness of approximately 2 to 10 microns, preferably 2 to 4 microns.
  • the spacer 139 is approximately one millimeter thick.
  • the charging electrodes are produced for example by metal inserts which are glued in holes drilled in the support plate having a thickness of two millimeters for example.
  • the supply conductors are produced by metal tracks having a thickness of approximately four microns which are connected to the inserts.
  • the detection electrodes are also produced by metal inserts which are glued in holes drilled in the support plate having a thickness of two millimeters for example.
  • the connecting conductors are made by metal tracks having a thickness of about four microns which are connected to the inserts.
  • the rest of the support plate on the side of the metal conductors is metallized except on areas on either side of the inserts and metal tracks.
  • the thickness of the metallization is from 4 to 15 microns approximately.
  • the metal inserts must be made of a material which must have the following characteristics: a coefficient of expansion close to that of the support plate, ease of metallization for connections with the supply conductors and ease of machining for drilling slots. This material is for example obtained by sintering at least one metallic powder.
  • the deflection electrodes proper are constituted by the three elements 143, 144 and 145 which, unlike the other elements 135, to 142, are not insulating plates but insulating blocks, l 'a central 144 whose metallized walls receive the high deflection voltage by the conductors such as that referenced 152 and the other two 143 and 145 respectively disposed upstream and downstream in the direction of the ink jet.
  • These electrodes formed by the metallized walls of blocks 143 and 145 serve to reduce the risks of breakdown.
  • the supply conductors 152 are produced, half, on the input face of the block 140 and, for the other half, on the output face of the block, by ensuring that two successive electrodes are supplied one by one conductor on the input face and the other by a conductor on the output face.
  • the multijet deflection head 32 is mounted on one side of a rotary arm 43, the other side of which supports an electronic box 44.
  • This electronic box of the shielded type, comprises a printed circuit 45 on which are mounted different electronic components producing various electronic functions which will be described more fully in relation to FIG. 4.
  • This printed circuit 45 is connected to the electrodes of the multijet deflection module 32 by one or more connectors or flexible cords 46 and to an electronic control device (not shown) by one or more flexible cables 47.
  • the housing 44 is closed by a cover metallic 48.
  • the arm 43 pivots on the axis 49 integral with the upper part of the one-piece body 29 thanks to the combination of a link 50 and a yoke 51 which is driven in translation by a cylinder 52 provided with one-way flow limiters 53.
  • This rotation makes it possible to lower the arm 43 so that the ink jet (s) can pass through the multijet deflection head and raise it to allow access to the plate nozzles 39 and the multijet deflection head for their maintenance.
  • the gutter 34 for recovering the ink drops not used from a jet, that is to say not deflected, is disposed at the lower part of the monobloc body 29 (FIGS. 2 and 3).
  • ink jet an inlet orifice 54 drilled in an advanced part 54 ′ of the monobloc body 29 and a cavity 55 in which is disposed a block 56 of insulating material which is crossed by eight conduits 57 communicating, d on one side, with the inlet orifices 54 and on the other side, with the reservoir 62 via a cavity 58 and a conduit 59.
  • the eight conduits 57 therefore open into this cavity 58 (FIG. 3) in the shape of a triangle so that the liquid from the unused drops is sucked through the conduit 59 whose inlet orifice is disposed at the upper part of the cavity 58 , i.e. at the top of triangle 60.
  • the cavity 58 is closed by a plate 61 which has an orifice 61 ′ constituting the inlet of the conduit 59. Seals 60 are provided for sealing between the block 56 and the plate 61 and between the latter and the conduit 59 which is drilled in beam 28.
  • the reservoir 62 is obtained by a first cavity disposed in the beam 28 and by a second cavity disposed in a part 30, this last part being assembled to the beam 28 by bolts 65 and seals 66, these bolts 65 also serving to assemble the rear plate 110.
  • the reservoir 62 is connected to a solenoid valve 89, also called drain, by a conduit 63, said solenoid valve being moreover connected to the reservoir 35 by a conduit which passes through the beam 28 and the one-piece body 29
  • the conduit comprises three parts, the first horizontal 77 for the crossing of the beam 28, the second 75 in the form of a cavity in the one-piece body 28 and the third 72 for the crossing of the one-piece body 29.
  • the reservoir 62 is common to all the printing modules mounted on the beam 28, that is to say to the nine modules shown in Figure 1.
  • Figures 6c and 6d Figure 6c being a view along arrow C in FIG. 6d, show the cavity 62 in the part 30 as well as the nine orifices 63 ′ of the conduits 63 which open there from the solenoid valve 89.
  • the bottom of the cavity 62 is inclined so as to allow the recovery of the liquid by a conduit 73, the orifice of which is located at the lowest point.
  • each conduit 57 is equipped with a stud 85 which, by reference to the potential of the one-piece body 29, makes it possible to detect the presence of liquid in the gutter. It is for this reason that the parts 56 and 61 are made of insulating material.
  • Such a liquid detector can be produced, without limitation, according to the exemplary embodiment described in French patent No. 2,543,019.
  • Distribution of the liquid to all the tanks of the nine modules are made via the distributor 111 produced on the rear face of the part 30 and which communicates with a solenoid valve 86, called a supply valve (one per module) by conduits 74 which terminate in orifices 74 ′ at number of 9 in the dispenser 111.
  • This dispenser 111 is supplied with ink by a conduit 69 whose inlet orifice in the dispenser is referenced 69 '.
  • the conduits 74 are supplied by a main conduit 76 connected to the supply conduit 69 and secondary conduits 87 which are designed to balance the regular and singular pressure drops to each tank 35.
  • These various main conduits 76 and secondary 87 are closed by a plate 110 which is applied against the rear face of the part 30.
  • the solenoid valve 86 communicates with the latter via a conduit 38 inside the beam 28, a conduit 37 inside the one-piece body 29 and a cavity 88 in the one-piece body 29 connecting the two conduits 37 and 38.
  • FIG. 6e shows the orifices 63 ⁇ and 74 ⁇ of the conduits 63 and 74 at the place of their connection with the corresponding solenoid valves 89 and 86.
  • the gutter 54 ′ must be inclined at an angle ⁇ with respect to a first vertical plane containing the jets and by an angle ⁇ with respect to a second vertical plane perpendicular to the first.
  • FIG. 4 is a functional diagram showing the various functions performed by the electronic circuits installed on the card 45.
  • the first function is that of transferring signals between the multijet deflection head and an external control device 90.
  • the second function is to record information which characterizes the modifications to be made automatically on the control signals to take account of certain faults.
  • the transfer function relates to the charge voltages of the drops which are transmitted to the charge electrodes by the conductors 95 from the control device 90 (circuit 99), the deflection voltage which is transmitted to the deflection electrodes by conductors 92 in from the control device 90 (supply circuit 93), the phase detection signals which are transmitted from the phase detection electrodes to the control device 90 (processing circuit 99) via conductors 94, d a multiplexing circuit 101, a preamplifier 100 and a conductor 102.
  • the multiplexing circuit is controlled by signals on conductors 103, produced by the processing circuit 99.
  • the function for recording the characteristic information of the multijet printing module is performed by a memory 105 of the permanent type which is recorded at the time of the factory settings.
  • This information relates, for example, to the static errors of the multijet print head, such as the misalignment of the jets, and, in this case, the processing circuit 99 performs an overall correction of the charge of the drops and triggers in advance. or late the emission of the charged drops to obtain a better positioning of the impacts on the support 40. For this purpose, it uses the information provided by the memory 105.
  • the information contained in the memory 105 can also relate to elements other than the multijet deflection head and in particular the characteristics of the device for obtaining the jets of liquid associated with the reservoir 35 as well as data make it possible to follow the evolution of the module in during manufacturing and during maintenance.
  • FIG. 7 The functional hydraulic diagram in FIG. 7 makes it possible to understand how the various conduits, reservoirs and solenoid valves described above are interconnected so as to carry out the various functions of a printing apparatus comprising nine elementary modules of eight jets each. This diagram also indicates the elements to be added to allow the desired operation of the device.
  • the distributor 111 supplies the nine reservoirs 35 of the nine elementary modules 11 to 19 (FIG. 1) by conduits 74, solenoid valves 86, conduits 38, 88 and 37.
  • the non-deflected drops 79 of the jets of ink are recovered by the gutters 34 where they are sucked in the reservoir 62 via the conduits 57, 58 and 59.
  • the reservoirs 35 are emptied via the conduits 72, 75 and 77 (not shown in FIG. 7), solenoid valves and conduits 63 which terminate in the recovery tank 62.
  • the distributor 111 is supplied by a pump 112 which is connected, on one side, to said distributor by the conduit 69 and, on the other side, to a general reservoir 117 by a conduit 118.
  • the tank 62 is emptied by a pump 115 which is connected, on one side, to said tank 62 by the pipe 73 and, on the other side, to the general tank 117 by a pipe 116.
  • a vacuum is produced in the recovery tank 62 by a pump 113 which is connected to said tank 62 by a conduit 114.
  • each monobloc body 29 is fixed to the beam 28 by at least two screws 120 and 121.
  • the precise position of each module on the beam is obtained by a horizontal groove 122 of the beam 28 which cooperates with two horizontal nipples 124.
  • Nipples 124 are rods which pass right through the one-piece body 29 and which thus allow the simultaneous positioning of the stimulation body 35 on the one-piece body 29 and of the body 29 on the beam 28. It is also provided an oblong vertical groove 123 which cooperates with an eccentric 125 so as to laterally adjust the position of the one-piece body 29 on the beam 28.

Landscapes

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

Claims (18)

  1. Druckmodul nach dem Mehrstrahlverfahren mit parallel angeordneten Tintenspritzdüsen, bestehend aus:
    - ersten Vorrichtungen (33) zur Erzeugung von parallel verlaufenden Tintenstrahlen, die in einer Ebene angeordnet sind,
    - zweiten Vorrichtungen (32) zur Ablenkung von mindestens einigen Tropfen Tinte, die aus den genannten Tintenspritzdüsen kommen, in Richtung einer zu bedruckenden Unterlage (40),
    - dritten Vorrichtungen (34) zum Auffangen der nicht abgelenkten Tropfen,
    - vierten Vorrichtungen (117, 111, 86) zur Versorgung der ersten Vorrichtungen mit Tinte und
    - fünften Vorrichtungen (59, 113) zur Weiterleitung der durch die dritten Vorrichtungen aufgefangenen Tinte in einen Sammelbehälter (62),
    - sechsten Vorrichtungen (72, 77, 89) zur Entleerung der genannten ersten Vorrichtungen in den genannten Sammelbehälter (62), dadurch gekennzeichnet, daß:
    - die ersten, zweiten und dritten Vorrichtungen von einem aus einem Stück bestehenden Körper (29) gehalten werden,
    - die dritten Vorrichtungen fest an dem genannten aus einem Stück bestehenden Körper (29) montiert sind,
    - die zweiten Vorrichtungen kippbar an dem genannten aus einem Stück bestehenden Körper (29) montiert sind, damit diese sich während des Bedruckens der genannten zu bedruckenden Unterlage (40) zwischen die ersten und dritten Vorrichtungen schieben und dann wieder herausbewegen können, um eine Wartung der ersten, zweiten und dritten Vorrichtungen zu ermöglichen.
  2. Druckmodul nach dem Mehrstrahlverfahren nach Anspruch 1, dadurch gekennzeichnet, daß der genannte aus einem Stück bestehende Körper (29) von einer Fläche des Stützträgers (28) getragen wird.
  3. Druckmodul nach dem Mehrstrahlverfahren nach Anspruch 2, dadurch gekennzeichnet, daß die vierten, fünften und sechsten Vorrichtungen von der anderen Fläche des genannten Stützträgers (28) getragen werden.
  4. Druckmodul nach dem Mehrstrahlverfahren nach Anspruch 3, dadurch gekennzeichnet, daß die ersten Vorrichtungen mit den vierten und sechsten Vorrichtungen durch Leitungen miteinander verbunden sind, die in dem genannten aus einem Stück bestehenden Körper (29) und dem genannten Stützträger (28) angeordnet sind.
  5. Druckmodul nach dem Mehrstrahlverfahren nach Anspruch 3 oder 4, dadurch gekennzeichnet, daß die dritten Vorrichtungen mit den fünften Vorrichtungen durch Leitungen miteinander verbunden sind, die in dem genannten aus einem Stück bestehenden Körper (29) und dem genannten Stützträger (28) angeordnet sind.
  6. Modulares Druckmodul nach dem Mehrstrahlverfahren nach einem der Ansprüche 3, 4 oder 5, dadurch gekennzeichnet, daß der genannte Sammelbehälter (62) in den genannten Stützträger (28) in Form eines inneren Hohlraumes eingearbeitet ist.
  7. Druckmodul nach dem Mehrstrahlverfahren nach einem der vorangegangenen Ansprüche 3, 4, 5 oder 6, dadurch gekennzeichnet, daß die genannten sechsten Vorichtungen zur Entleerung der genannten ersten Vorrichtungen ein Magnetventil (89) enthalten, das auf der einen Seite mit den genannten ersten Vorrichtungen über Leitungen (72, 75, 77), die in dem Stützträger (29) und dem aus einem Stück bestehenden Körper (28) untergebracht sind, und auf der anderen Seite mit dem Sammelbehälter (62) über eine Leitung (63) verbunden ist, die sich in dem Stützträger (28) befindet.
  8. Druckmodul nach dem Mehrstrahlverfahren nach einem der vorangegangenen Ansprüche 3, 4, 5, 6 oder 7, dadurch gekennzeichnet, daß die genannten vierten Vorrichtungen ein Magnetventil (86) enthalten, das auf der einen Seite mit den genannten ersten Vorrichtungen über die Leitungen (37, 88, 38), die sich in dem Stützträger (28) und dem aus einem Stück bestehenden Körper (28) befinden, und auf der anderen Seite mit einem Versorgungsbehälter (117) über eine Leitung (74) verbunden ist, welche an einen Verteilerkreislauf (111) angeschlossen ist.
  9. Druckmodul nach dem Mehrstrahlverfahren nach einem der vorangegangenen Ansprüche 1 bis 8, dadurch gekennzeichnet, daß die genannten fünften Vorrichtungen zur Überführung der durch die dritten Vorrichtungen aufgefangenen Tinte eine Leitung (59) enthalten, die in dem genannten Stützträger (28) und in einem Gerät (113) angeordnet sind, das im Inneren des genannten Entleerungsbehälters (62) einen Unterdruck erzeugt.
  10. Druckmodul nach dem Mehrstrahlverfahren nach einem der Ansprüche 8 oder 9, dadurch gekennzeichnet, daß der genannte Entleerungsbehälter (62) mit dem genannten Versorgungsbehälter (117) über die Leitungen (73), (116) und mit einer Pumpe (115) in Verbindung steht.
  11. Druckmodul nach dem Mehrstrahlverfahren nach einem der vorangegangenen Ansprüche 1 bis 10, dadurch gekennzeichnet, daß die genannten dritten Vorrichtungen zum Auffangen der nicht abgelenkten Tropfen in den aus einem Stück bestehenden Körper (29) eingearbeitet sind und so viele Zugangsleitungen wie Tintenstrahldüsen besitzen, wobei die genannten Zugangsleitungen an einen Sammelhohlraum (58), welcher sich auf der anderen Seite des aus einem Stück bestehenden Körpers (29) befindet, über die Leitungen (57) angeschlossen sind, die den genannten aus einem Stück bestehenden Körper (29) durchqueren.
  12. Druckmodul nach dem Mehrstrahlverfahren nach Anspruch 11, dadurch gekennzeichnet, daß die Leitungen (57) und der Sammelhohlraum (58) in einen Block (56) aus Isoliermaterial eingearbeitet sind.
  13. Druckmodul nach dem Mehrstrahlverfahren nach Anspruch 12, dadurch gekennzeichnet, daß jede der Leitungen (57) eine Flüssigkeitsmeßelektrode (85) enthält, die sich in dem Isolierblock (56) befindet.
  14. Druckmodul nach dem Mehrstrahlverfahren nach einem der vorangegangenen Ansprüche 1 bis 13, dadurch gekennzeichnet, daß der genannte aus einem Stück bestehende Körper (29) an dem genannten Stützträger (28) mit Schrauben (120, 121) befestigt ist und seine Position horizontal durch einen Exzenter (123), der mit einer länglichen, vertikalen Nut (125) zusammenwirkt, und durch Paßstifte (124), die von dem aus einem Stück bestehenden Körper (29) gehalten werden und mit einer horizontalen Nut (122) des Stützträgers (28) zusammenwirken, eingestellt wird.
  15. Druckmodul nach dem Mehrstrahlverfahren nach einem der vorangegangenen Ansprüche 1 bis 14, dadurch gekennzeichnet, daß die Kippbewegung der zweiten, zur Ablenkung der Strahlen bestimmten Vorrichtungen mit Hilfe eines Stützarmes (43) der genannten zweiten Vorrichtungen erreicht wird, wobei der genannte Stützarm seine Kippbewegung aufgrund einer Kombination aus einem Kniehebel (50) und einem Gabelgelenk (51), die durch Verschiebung eines von dem Stützträger (28) gehaltenen Zylinders (52) angetrieben wird, um eine Achse ausführt, die mit dem aus einem Stück bestehenden Körper (29) fest verbunden ist.
  16. Druckmodul nach dem Mehrstrahlverfahren nach einem der vorangegangenen Ansprüche 1 bis 15, dadurch gekennzeichnet, daß die zweiten, zur Ablenkung der Tintenstrahlen bestimmten Vorrichtungen ein elektronisches Gerät (45) enthalten, mit Hilfe dessen an die Ladeelektroden eine Ladespannung angelegt und die Ladesignale der Tropfen jedes Strahls gemessen werden.
  17. Druckmodul nach dem Mehrstrahlverfahren nach Anspruch 16, dadurch gekennzeichnet, daß das genannte elektronische Gerät (45) unter anderem einen Speicher besitzt, der Daten enthält, die für die Funktionsweise der genannten zweiten Vorrichtungen charakteristisch sind und dazu dienen, die genannten Ladespannungen sowie die Zeitpunkte des Auslösens des Bildrasters so zu verändern, daß der Rückstand in bezug auf die transversale Verschiebung wieder aufgeholt wird.
  18. Druckvorrichtung, dadurch gekennzeichnet, daß diese mehrere Mehrstrahldruckmodule nach einem der vorangegangenen Ansprüche 1 bis 17 enthält, wobei die genannten Module in der Weise nebeneinander angeordent sind, daß zwischen allen Strahldüsen der gesamten Vorrichtung auf dem genannten Stützträger (28) ein gleichbleibender Abstand eingehalten wird, und die Module mit dem genannten Entleerungsbehälter (62) und dem Verteilerkreislauf (111), die alle Modulen gemein sind, zusammenwirken.
EP92402453A 1991-09-10 1992-09-08 Druckmodul mit Mehrfachdüsen und Drucker unter Verwendung mehrerer Module Expired - Lifetime EP0532406B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9111151 1991-09-10
FR9111151A FR2681010B1 (fr) 1991-09-10 1991-09-10 Module d'impression multijet et appareil d'impression comportant plusieurs modules.

Publications (2)

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EP0532406A1 EP0532406A1 (de) 1993-03-17
EP0532406B1 true EP0532406B1 (de) 1996-01-17

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US (1) US5473353A (de)
EP (1) EP0532406B1 (de)
JP (1) JPH06206319A (de)
KR (1) KR100229218B1 (de)
CN (1) CN1051738C (de)
AU (1) AU652070B2 (de)
CA (1) CA2077960A1 (de)
DE (1) DE69207687T2 (de)
ES (1) ES2082407T3 (de)
FR (1) FR2681010B1 (de)

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Also Published As

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ES2082407T3 (es) 1996-03-16
JPH06206319A (ja) 1994-07-26
AU652070B2 (en) 1994-08-11
DE69207687T2 (de) 1996-09-19
CN1051738C (zh) 2000-04-26
CN1074175A (zh) 1993-07-14
EP0532406A1 (de) 1993-03-17
DE69207687D1 (de) 1996-02-29
US5473353A (en) 1995-12-05
AU2287992A (en) 1993-03-11
FR2681010A1 (fr) 1993-03-12
KR930005786A (ko) 1993-04-20
FR2681010B1 (fr) 1995-02-17
CA2077960A1 (fr) 1993-03-11
KR100229218B1 (ko) 1999-11-01

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