EP0282049A2 - Système encreur pour une imprimante matricielle à jet d'encre - Google Patents

Système encreur pour une imprimante matricielle à jet d'encre Download PDF

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Publication number
EP0282049A2
EP0282049A2 EP88103771A EP88103771A EP0282049A2 EP 0282049 A2 EP0282049 A2 EP 0282049A2 EP 88103771 A EP88103771 A EP 88103771A EP 88103771 A EP88103771 A EP 88103771A EP 0282049 A2 EP0282049 A2 EP 0282049A2
Authority
EP
European Patent Office
Prior art keywords
ink
container
line
mixing container
pressure
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
EP88103771A
Other languages
German (de)
English (en)
Other versions
EP0282049A3 (en
EP0282049B1 (fr
Inventor
Jan Slomianny
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to AT88103771T priority Critical patent/ATE82196T1/de
Publication of EP0282049A2 publication Critical patent/EP0282049A2/fr
Publication of EP0282049A3 publication Critical patent/EP0282049A3/de
Application granted granted Critical
Publication of EP0282049B1 publication Critical patent/EP0282049B1/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
    • B41J2/17—Ink jet characterised by ink handling
    • B41J2/175—Ink supply systems ; Circuit parts therefor

Definitions

  • the invention relates to an inkjet matrix printer with an ink system, in which a conveyor optionally, thick ink is fed from a first reservoir and, independently thereof, solvent from a second reservoir into an ink chamber, - Ink from this ink chamber is fed to a print head under pressure and - Ink is conveyed back into the ink chamber from a collecting groove for ink droplets that are not deflected for writing.
  • the conveying device has mechanically operating pumps, for example diaphragm pumps or gear pumps.
  • Some Trintenray matrix printers use at least one mechanically operating feed pump, with which the ink is conveyed from the ink chamber to the write head, and at least one suction pump is additionally provided, through which the droplets not deflected for writing are conveyed back from the collecting channel into the ink chamber.
  • a diaphragm pump this single pump both generates pressure (in one direction) and also creates a negative pressure (in the other working direction).
  • Inkjet matrix printers are known in principle, for example, from DE-OS 23 44 453 or the old US Pat. No. 3,596,275.
  • the invention is based on the object of specifying an ink system which works without mechanically moving pumps and is therefore inexpensive, largely maintenance-free and also suitable for pigmented inks.
  • the ink chamber - in an ink container connected to the print head, - In a mixing container connected to the two storage containers and - In a collecting container connected to the collecting trough is divided that the conveying device is operated by compressed air, can be connected to a pressure air source and has a suction jet pump, that the ink tank is connected to a pressure line and is pressurized and connected to the mixing tank via a connecting line, that the mixing container is alternatively either connected to the suction jet pump via a suction line or can be connected to a pressure line, and that the collecting container is connected to the suction jet pump via a vacuum line and to the mixing container via a lockable drain line.
  • This ink system has a conveyor device that is driven exclusively by compressed air.
  • the compressed air is used directly in order to maintain an overpressure in at least one of the containers, so that pressure is conveyed out of this liquid. But it is also used indirectly, initially driving a suction jet pump or a similar vacuum generator that works without moving parts.
  • the negative pressure generated is also used for conveying processes.
  • the ink system is characterized by a high level of maintenance-free operation, a safe operation that runs with the same quality even over long intervals and by a low cost price. Deposition of pigment bodies on moving parts no longer occurs. The practically unavoidable supply of heat to mechanically operating pumps due to the pumps which inevitably heat up during operation is also eliminated from the pumped ink. The viscosity of the ink and thus the quality of the print are influenced by the application of heat.
  • the outlet of the suction jet pump opens into a separator, for example a water bath.
  • a separator for example a water bath.
  • the viscosity control of the ink system is particularly advantageous and inventive, even without connection with the exclusively compressed air-operated conveying device described.
  • the viscosity is measured using two different measuring steps: The connecting line between the mixing container and the ink container has a calibrated passage. If ink is conveyed from the mixing container into the ink container, the time required to send a predetermined volume of ink into the ink container can be measured. The volume is determined using two level switches in the ink tank. The viscosity can be determined over time. The viscosity of the ink can be varied depending on the measurement result achieved in that either more thick ink or more solvent is fed into the mixing container.
  • the viscosity is further finely determined by electrically detecting the stream of droplets between the write head and the collecting trough.
  • the duration of the flight of an ink droplet between the charging electrode and the collecting trough can be determined by abruptly interrupting the charging of the droplets at a certain point in time and by observing how long the electrical current transported by the ink droplets and flowing out of the collecting trough after this switch-off is even greater than zero.
  • the time period between the switching off of the charge and the drop in the electrical current at the collecting trough is equal to the flight time of the ink droplets.
  • the number of ink droplets per unit of time can be determined via the charge impulses that the collecting channel per unit of time receives due to the charged ink droplets that it has collected.
  • a prerequisite for the measuring methods described is that the deflection of the ink droplets is switched off during the measurement.
  • the measuring method described enables a very precise determination of the droplet speed and number of droplets, from which an equally precise calculation of the viscosity is possible.
  • the measuring method also only requires a short measuring time, for example, the measurement can be carried out in the pause between the printing of two characters. This provides very precise measured values on the viscosity at relatively short notice, so that the mixture in the mixing chamber can be adapted to the respective conditions (ambient temperature, etc.) relatively quickly and it is always ensured that printing is carried out with an ink which is in the most favorable viscosity range .
  • the precondition for the device described for the described method is an electrically insulated arrangement of the (metallic) collecting trough, so that the electrical droplet charge received by the collecting trough can be measured quantitatively and in time by means of an ammeter.
  • the arrangement shown in the diagram according to FIG. 1 has a compressed air connection 10, via which compressed air with, for example, about 7 bar pressure is fed to the system via an electric valve, a first pressure regulator and an air filter.
  • the compressed air now present at a slightly lower pressure flows into a branch point 12 in three different lines.
  • An upper line 14 with the highest system pressure supplies a vacuum pump via an adjustable throttle 16, which is designed here as a jet pump 18.
  • the compressed air flowing through it entrains air particles from a vacuum line 20 like a water jet pump, thus creates a vacuum there, and flows out via at least one outlet line 22, which ends in a water bath 24 acting as a separator.
  • two lines 26 and 28 do not branch off from the line 14, into each of which electrovalves 30 and 32 are inserted, which in turn control a pneumatic valve 34 and 36, respectively.
  • electrovalves 30 and 32 which in turn control a pneumatic valve 34 and 36, respectively.
  • tin ten-carrying lines are only equipped with pneumatic valves, which in turn are controlled by electro-valves (as in the case of valve pairs 30, 34 or 32, 36). This avoids the supply of heat to the ink or another liquid, which is always present at electrovalves.
  • the flammability and the risk of explosion are greatly reduced because flammable substances are typically used as solvents.
  • a line 38 branches off from line 14, into which an electrovalve 40, which controls two pneumatic valves 42, 44, and a line 46, into which an electrovalve 48, which controls a pneumatic valve 50, is inserted.
  • the line 52 also branches off from the branching point 12, into which a second pressure regulator is inserted. Its outlet pressure is, for example, 4 bar.
  • An electric valve 56 is inserted into the line 52, the line 52 opens into the air space of a mixing container 58.
  • a line 60 branches off from the line 52, into which a third, high-precision pressure regulator 62 is inserted.
  • a pneumatic valve 64 is inserted into the line 60 and is controlled by an electrovalve 66 which is located in the third line 68 leading from the branch point 12.
  • the line 60 leads into the air space of an ink container 70. Because of the triple pressure control, there is a very precisely specified air pressure of, for example, 3.5 bar.
  • the thick ink required for mixing the ink in the mixing container 58 is located in a storage container 72 designed as a conveniently exchangeable cartridge, the associated solvent in a cartridge of the same type in the form of a storage container 74.
  • the arrangement is such that a maximum of two connections on each Storage containers are necessary.
  • the reservoir 72 for thick ink is connected to the liquid space of the mixing container 58 via a line 76 in which the pneumatic valve 36 is located.
  • the reservoir 74 is also for Solvent is connected via a line 78, in which the pneumatic valve 34 is located, to the liquid space of the mixing container 58.
  • a flushing line branches off from this line 78 upstream of the valve 34 and will be discussed later.
  • both valves 34, 36 are closed.
  • the filling state of the mixing container 58 is detected via two level switches 84, 86 arranged at different levels, which together form a level measuring device.
  • the mixing container 58 is connected at its lowest point via a connecting line 90 to the lowest point of the ink container 70.
  • a check valve is inserted which only allows liquid flow from the mixing container 58 to the ink container 70.
  • a float 92 is also provided in the ink tank and forms a level measuring device with two level switches 94, 96. If it is then detected that the ink container 70 has to be refilled, the valves 42 and 44 are additionally closed. The previously closed valve 56 is opened so that the air space of the mixing container 58 can be filled with compressed air of, for example, 4 bar pressure via the line 52. Since there is only a pressure of 3.5 bar in the air space of the ink container 70, is due to the pressure difference Ink from the mixing container 58 is pressed through the connecting line 90 into the ink container 70.
  • the connecting line 90 is calibrated, for example it has an area with a precisely specified inner diameter. The viscosity of the delivered ink can be determined from the measured filling time.
  • the ink container 70 is connected to the write head 100 via an ink line 98.
  • the line 98 is set in the lowest region of the ink container 70, an ink filter and a pneumatic valve 102 for the quick shutdown are inserted into it.
  • the ink which is under a pressure of 3.5 bar, is ejected in the writing head 100, shaped into droplets in a known manner, thereby being charged, the shaped droplets are deflected electrostatically.
  • Droplets not required for the writing process enter a collecting trough 104 which is metallic and is arranged electrically isolated from the other parts.
  • a collecting line 106 is connected to the collecting trough 104, which leads to a collecting container 108.
  • an end branch of the line 68 opens into the write head 100 and supplies compressed air to it. This compressed air flows parallel to the flow of the ink droplets and moves at the same speed as possible.
  • the valve 102 is also controlled by the valve 66, but via an additional check valve. As soon as the valve 66 is closed, the valve 64 first closes, the pressure in the ink container 70 is reduced as quickly as possible. Valve 102 closes at the same time as possible, so that it is avoided that ink still drips from writing head 100.
  • the rapid shutdown is supported by the check valve described and an additional pneumatic valve 112. The arrangement is such that pressure is released as quickly as possible directly at the location of the valve 102.
  • the liquid droplets electrically charged by the charging electrode - if they are not deflected in a suitable manner for writing - get into the collecting trough 104. On the one hand, they are noticeable as a liquid, on the other hand as a packaged electrical charge that is transported to them. This is timed by an ammeter 114. If the loading process of the droplets is abruptly interrupted, charged liquid droplets continue to fly (assuming deflection to collecting channel 104) until the first uncharged drop reaches collecting channel 104. The corresponding time span can be used to determine the flight time. The viscosity of the ink can be determined very precisely via the number of droplets and the flight time. The measured values obtained are taken into account in the preparation of the ink in the mixing container 58 comprising thick ink and solvent.
  • the flush line 80 opens between the valve 102 and the write head 100 into the ink line 98, into which a check valve is inserted adds. If the valve 102 is now closed, the pressure in the ink line 98 drops rapidly. At the same time, a pneumatic valve 116 has been opened, which is located in a line 118, which connects the outlet of the third pressure regulator 62 to the air space of the reservoir 74 for solvents. As a result, this pressure vessel is pressurized to 3.5 bar. As long as the same pressure prevails in the ink line 98, no solvent in the flush line 80 can get into the ink line 98. However, as soon as the pressure in the latter has dropped, solvent is sent into it via the flushing line 80, and the print head is flushed and cleaned.
  • FIG. 2 shows a tube section 120 of a write head 100
  • an ink line 98 can be screwed onto this tube section 120 (below) via a clamping cone connection.
  • the tube piece 120 has an external thread.
  • the cap 122 shown in FIG. 3 with an internal thread can be screwed onto this.
  • Dise 124 is provided in the cap. The arrangement shown enables rapid replacement of a nozzle from the tube section 120 of a write head 100. Other designs with a quickly exchangeable nozzle are possible.

Landscapes

  • Ink Jet (AREA)
  • Particle Formation And Scattering Control In Inkjet Printers (AREA)
EP88103771A 1987-03-13 1988-03-10 Système encreur pour une imprimante matricielle à jet d'encre Expired - Lifetime EP0282049B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT88103771T ATE82196T1 (de) 1987-03-13 1988-03-10 Tintensystem fuer tintenstrahlmatrixdrucker.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3708120 1987-03-13
DE3708120 1987-03-13

Publications (3)

Publication Number Publication Date
EP0282049A2 true EP0282049A2 (fr) 1988-09-14
EP0282049A3 EP0282049A3 (en) 1989-08-16
EP0282049B1 EP0282049B1 (fr) 1992-11-11

Family

ID=6322955

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88103771A Expired - Lifetime EP0282049B1 (fr) 1987-03-13 1988-03-10 Système encreur pour une imprimante matricielle à jet d'encre

Country Status (4)

Country Link
US (1) US4862192A (fr)
EP (1) EP0282049B1 (fr)
AT (1) ATE82196T1 (fr)
DE (1) DE3875757D1 (fr)

Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU747217B2 (en) * 1998-03-21 2002-05-09 E B S Gmbh Inkjet printer for printing on goods
DE102014224328A1 (de) * 2014-11-27 2016-06-02 Brother Kogyo Kabushiki Kaisha Flüssigkeitsverbrauchsgerät
US9393796B2 (en) 2014-08-19 2016-07-19 Brother Kogyo Kabushiki Kaisha Liquid cartridge
US9393801B2 (en) 2014-08-19 2016-07-19 Brother Kogyo Kabushiki Kaisha Liquid consuming apparatus
DE102015203330A1 (de) * 2015-02-25 2016-08-25 Brother Kogyo Kabushiki Kaisha Flüssigkeitskartusche
DE102015203328A1 (de) * 2015-02-25 2016-08-25 Brother Kogyo Kabushiki Kaisha Flüssigkeitsverbrauchsvorrichtung
DE102015203336A1 (de) * 2015-02-25 2016-08-25 Brother Kogyo K.K. Flüssigkeitsverbrauchsgerät
DE102015203327A1 (de) * 2015-02-25 2016-08-25 Brother Kogyo Kabushiki Kaisha Flüssigkeitspatrone
DE102015203334A1 (de) * 2015-02-25 2016-08-25 Brother Kogyo K.K. Flüssigkeitskartusche
US9469119B2 (en) 2014-08-29 2016-10-18 Brother Kogyo Kabushiki Kaisha Liquid cartridge
US9493007B2 (en) 2014-08-29 2016-11-15 Brother Kogyo Kabushiki Kaisha Liquid consuming apparatus
US9498969B2 (en) 2014-08-29 2016-11-22 Brother Kogyo Kabushiki Kaisha Liquid cartridge
US9809031B2 (en) 2014-08-08 2017-11-07 Brother Kogyo Kabushiki Kaisha Liquid cartridge
WO2018050519A1 (fr) 2016-09-19 2018-03-22 Kba-Metronic Gmbh Unité d'impression
WO2018050521A1 (fr) 2016-09-19 2018-03-22 Kba-Metronic Gmbh Unité d'impression
DE102016217879A1 (de) 2016-09-19 2018-03-22 Kba-Metronic Gmbh Druckaggregat
DE102016217877A1 (de) 2016-09-19 2018-03-22 Kba-Metronic Gmbh Druckaggregat
DE102016217878A1 (de) 2016-09-19 2018-03-22 Kba-Metronic Gmbh Druckaggregat

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Publication number Priority date Publication date Assignee Title
FR2652540B1 (fr) * 1989-10-02 1995-06-02 Imaje Sa Circuit d'encre notamment destine a la mise en pression d'une encre a pigments pour imprimante a jet d'encre.
GB2236712B (en) * 1989-10-11 1993-06-30 Linx Printing Tech Ink jet printer head flushing
GB9009957D0 (en) * 1990-05-03 1990-06-27 Domino Printing Sciences Plc Ink supply system for continuous ink jet printer
US5489925A (en) * 1993-05-04 1996-02-06 Markem Corporation Ink jet printing system
SG73372A1 (en) * 1993-09-08 2000-06-20 Hitachi Ltd An ink jet printing apparatus and a printing head for such an ink jet printing apparatus
US5532720A (en) * 1993-09-15 1996-07-02 Quad/Tech, Inc. Solvent recovery system for ink jet printer
AU3186795A (en) * 1994-09-16 1996-03-29 Videojet Systems International, Inc. Continuous ink jet printing system for use with hot-melt inks
GB9603813D0 (en) * 1996-02-22 1996-04-24 Videojet Systems Int An ink jet printing system
EP0805038A1 (fr) * 1996-05-02 1997-11-05 Quad/Tech, Inc. Système de récupération de solvant pour imprimante par jet d'encre
EP0816097A3 (fr) * 1996-07-01 1998-12-23 Quad/Tech, Inc. Appareil de récupération de solvant d'imprimante à jet d'encre incluant un dispositif de refroidissement thermoélectrique
JPH10211716A (ja) * 1997-01-29 1998-08-11 Sony Corp プリンタ装置
US6099113A (en) * 1998-03-13 2000-08-08 Iris Graphics Continuous jet printer mixing system
FR2780336B1 (fr) 1998-06-29 2000-08-11 Imaje Sa Circuit d'encre, machine a jet d'encre, et machine de conditionnememnt, ou convoyeur, mettant en oeuvre un tel circuit
US5967045A (en) * 1998-10-20 1999-10-19 Imation Corp. Ink delivery pressure control
US6382763B1 (en) * 2000-01-24 2002-05-07 Praxair Technology, Inc. Ink jet printing
US6575556B1 (en) 2000-09-18 2003-06-10 Marconi Data Systems Inc. Self-cleaning print head for ink jet printer
US7375857B1 (en) 2000-09-22 2008-05-20 Eastman Kodak Company Print proofing with color and screen matching
US6786565B2 (en) 2001-09-24 2004-09-07 Creo Americas, Inc. Inkjet proofing with matched color and screen resolution
JP4599878B2 (ja) * 2004-04-16 2010-12-15 コニカミノルタホールディングス株式会社 インクジェットプリンタ
JP2006192638A (ja) * 2005-01-12 2006-07-27 Fuji Photo Film Co Ltd インクジェット記録装置
US7510274B2 (en) 2005-01-21 2009-03-31 Hewlett-Packard Development Company, L.P. Ink delivery system and methods for improved printing
US8613501B2 (en) * 2007-10-12 2013-12-24 Videojet Technologies Inc. Ink supply system
GB0720290D0 (en) * 2007-10-12 2007-11-28 Videojet Technologies Inc Ink jet printer
DE102008012279B4 (de) * 2008-03-03 2011-08-25 Digital Photonics Corp., Tapei Pneumatisches Tintenstrahlsystem
FR2954215A1 (fr) 2009-12-23 2011-06-24 Markem Imaje Systeme de determination de l'autonomie en fluides consommables d'une imprimante a jet d'encre continu
FR2954216B1 (fr) 2009-12-23 2013-02-08 Markem Imaje Systeme de mesure dans un circuit de fluides d'une imprimante a jet d'encre continu, circuit de fluides associe et bloc destine a mettre en oeuvre un tel systeme de mesure
US8922777B2 (en) * 2011-06-14 2014-12-30 Hewlett-Packard Development Company, L.P. Optical density sensor calibration and self fixing
ES2611952T3 (es) * 2013-11-19 2017-05-11 Archroma Ip Gmbh Sistema de impresión de chorro de tinta
US9833999B2 (en) 2013-11-19 2017-12-05 Archroma Ip Gmbh Inkjet printing system

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US4121222A (en) * 1977-09-06 1978-10-17 A. B. Dick Company Drop counter ink replenishing system
JPS54123950A (en) * 1978-03-17 1979-09-26 Matsushita Electric Ind Co Ltd Ink jet recorder
DE2827718C3 (de) * 1978-06-23 1984-11-08 Fa. J.S. Staedtler, 8500 Nürnberg Vorrichtung zum Steuern des Schreibmittelzulaufs zur Schreibeinrichtung mechanischer Schreiber
JPS5670962A (en) * 1979-11-16 1981-06-13 Ricoh Co Ltd Controlling method for ink density
JPS5981177A (ja) * 1982-06-17 1984-05-10 Ricoh Co Ltd インクジエツト印写装置におけるインク粘度制御装置
GB8328000D0 (en) * 1983-10-19 1983-11-23 Domino Printing Sciences Ltd Hydraulic systems
GB8327999D0 (en) * 1983-10-19 1983-11-23 Domino Printing Sciences Ltd Hydraulic systems

Cited By (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1064153B1 (fr) * 1998-03-21 2003-08-27 E B S Gmbh Imprimante a jet d'encre pour l'impression de marchandises
AU747217B2 (en) * 1998-03-21 2002-05-09 E B S Gmbh Inkjet printer for printing on goods
US9809031B2 (en) 2014-08-08 2017-11-07 Brother Kogyo Kabushiki Kaisha Liquid cartridge
US9393796B2 (en) 2014-08-19 2016-07-19 Brother Kogyo Kabushiki Kaisha Liquid cartridge
US9393801B2 (en) 2014-08-19 2016-07-19 Brother Kogyo Kabushiki Kaisha Liquid consuming apparatus
US9469119B2 (en) 2014-08-29 2016-10-18 Brother Kogyo Kabushiki Kaisha Liquid cartridge
US9498969B2 (en) 2014-08-29 2016-11-22 Brother Kogyo Kabushiki Kaisha Liquid cartridge
US9493007B2 (en) 2014-08-29 2016-11-15 Brother Kogyo Kabushiki Kaisha Liquid consuming apparatus
DE102014224328A1 (de) * 2014-11-27 2016-06-02 Brother Kogyo Kabushiki Kaisha Flüssigkeitsverbrauchsgerät
DE102015203330A1 (de) * 2015-02-25 2016-08-25 Brother Kogyo Kabushiki Kaisha Flüssigkeitskartusche
DE102015203334A1 (de) * 2015-02-25 2016-08-25 Brother Kogyo K.K. Flüssigkeitskartusche
DE102015203327A1 (de) * 2015-02-25 2016-08-25 Brother Kogyo Kabushiki Kaisha Flüssigkeitspatrone
DE102015203336A1 (de) * 2015-02-25 2016-08-25 Brother Kogyo K.K. Flüssigkeitsverbrauchsgerät
DE102015203328A1 (de) * 2015-02-25 2016-08-25 Brother Kogyo Kabushiki Kaisha Flüssigkeitsverbrauchsvorrichtung
DE102015203327B4 (de) 2015-02-25 2023-11-30 Brother Kogyo Kabushiki Kaisha Flüssigkeitspatrone
DE102015203328B4 (de) * 2015-02-25 2024-04-18 Brother Kogyo Kabushiki Kaisha Flüssigkeitsverbrauchsvorrichtung
WO2018050519A1 (fr) 2016-09-19 2018-03-22 Kba-Metronic Gmbh Unité d'impression
WO2018050521A1 (fr) 2016-09-19 2018-03-22 Kba-Metronic Gmbh Unité d'impression
DE102016217879A1 (de) 2016-09-19 2018-03-22 Kba-Metronic Gmbh Druckaggregat
DE102016217877A1 (de) 2016-09-19 2018-03-22 Kba-Metronic Gmbh Druckaggregat
DE102016217878A1 (de) 2016-09-19 2018-03-22 Kba-Metronic Gmbh Druckaggregat

Also Published As

Publication number Publication date
US4862192A (en) 1989-08-29
EP0282049A3 (en) 1989-08-16
EP0282049B1 (fr) 1992-11-11
DE3875757D1 (de) 1992-12-17
ATE82196T1 (de) 1992-11-15

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