EP0606047A2 - Ink supply for an ink jet printer or plotter - Google Patents

Ink supply for an ink jet printer or plotter Download PDF

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Publication number
EP0606047A2
EP0606047A2 EP93810903A EP93810903A EP0606047A2 EP 0606047 A2 EP0606047 A2 EP 0606047A2 EP 93810903 A EP93810903 A EP 93810903A EP 93810903 A EP93810903 A EP 93810903A EP 0606047 A2 EP0606047 A2 EP 0606047A2
Authority
EP
European Patent Office
Prior art keywords
ink
connecting line
reservoir
housing
plotter
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
EP93810903A
Other languages
German (de)
French (fr)
Other versions
EP0606047B2 (en
EP0606047B1 (en
EP0606047A3 (en
Inventor
Jürg Geissmann
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.)
Pelikan Produktions AG
Original Assignee
Pelikan Produktions AG
Franz Buettner AG
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=6887906&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0606047(A2) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Pelikan Produktions AG, Franz Buettner AG filed Critical Pelikan Produktions AG
Publication of EP0606047A2 publication Critical patent/EP0606047A2/en
Publication of EP0606047A3 publication Critical patent/EP0606047A3/en
Application granted granted Critical
Publication of EP0606047B1 publication Critical patent/EP0606047B1/en
Publication of EP0606047B2 publication Critical patent/EP0606047B2/en
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

  • Inkjet printers or plotters have a print head with inkjet nozzles that can be moved horizontally in a housing.
  • the ink supply is formed by a moving foam body soaked in ink or by a hermetically sealed hollow body.
  • the present invention has for its object to provide a device with which the printing capacity is increased. This object is achieved by the combination of features according to the claims.
  • the 1 has a housing 1, in which a carriage 2 can be moved horizontally.
  • the carriage 2 carries a print head 3.
  • the print head 3 has several inkjet nozzles 4 and an ink supply, e.g. in the form of a foam body 5 soaked with ink.
  • a reservoir 10 with free ink 11 (FIG. 3) with a free surface 12 is arranged.
  • the container 10 is guided vertically movably in a trough 13 and is supported on springs 14.
  • the spring constant of these springs 14 is dimensioned such that the surface 12 remains at approximately the same level regardless of the ink supply volume. This level is somewhat lower than the level of the nozzles 4, so that a slight negative pressure is formed in the print head 3.
  • the reservoir 10 is connected to the print head 3 via a connecting line 20.
  • This consists of a tube 21 immersed in the ink 11, a hollow needle 22 inserted into the foam body 5 and one Tube 21 and the flexible connecting tube 23 connecting the needle 22.
  • a pumping means is arranged on the container lid 15.
  • This is indicated in Fig. 3 as an air pump 26.
  • the pump 26 shown in simplified form consists of an arched rubber membrane 27, which has a hole 28 in the middle and is attached to the edge of the container lid 15. Below the membrane 27, the cover 15 has an opening 29 which is closed on the inside by a flexible film tab 30 which can be lifted off. This forms a check valve.
  • This pump 26 can be used to manually produce a slight excess pressure in the air space above the ink surface 12 by repeatedly pressing in the membrane 27. The ink 11 is thus driven into the connecting line 20. As soon as it is filled, i.e.
  • the air space above the surface 12 is again subjected to atmospheric pressure.
  • a rubber plug 35 can be pulled out of an opening 36 of the cover 15 above the surface 12.
  • the ventilation opening can also be integrated in the pump 26.
  • the ink supply according to the invention enables long, uninterrupted operation of the print head 3 without having to be replaced.
  • a plotter for making drawings can, for example, be operated overnight without supervision are what is not possible with today's inkjet plotters because of the limited ink supply in the print head 3.
  • FIG. 4 shows a second embodiment of the storage container 10.
  • This consists here of an airtightly welded bag 40 filled with ink.
  • a rubber plug 42 is inserted at one edge 41 of the bag 40, through which a further hollow needle 43 is inserted. This forms the second end of the connecting line 20.
  • the interior of the bag is free of air.
  • all that is required to fill the connecting line 20 and the foam body 5 of the print head 3 is to be lightly pressed onto the bag 40.
  • the bag 40 is flat, its internal pressure changes little during the consumption of the ink supply.
  • the feed devices described are also suitable for print heads 3 which do not contain a foam body, but rather a cavity filled with ink.

Abstract

The printer has a movable print head (3) with a foam body soaked in ink or with a hollow body which is filled with ink and is hermetically sealed. A supply container (10) with free ink is arranged next to the printer. Inserted in the foam body is a hollow needle (22) which is connected to the container (10) via a flexible connection line (20). A high printing capacity of the printer is thus achieved. <IMAGE>

Description

Inkjet-Printer oder -Plotter haben einen in einem Gehäuse horizontal verfahrbaren Druckkopf mit Inkjet-Düsen. Der Tintenvorrat ist durch einen mitfahrenden, mit Tinte getränkten Schaumkörper oder durch einen hermetisch geschlossenen Hohlkörper gebildet.Inkjet printers or plotters have a print head with inkjet nozzles that can be moved horizontally in a housing. The ink supply is formed by a moving foam body soaked in ink or by a hermetically sealed hollow body.

Der vorliegenden Erfindung liegt die Aufgabe zugrunde, eine Vorrichtung anzugeben, mit welcher die Druckkapazität gesteigert wird. Diese Aufgabe wird durch die Merkmalskombination gemäss den Ansprüchen gelöst.The present invention has for its object to provide a device with which the printing capacity is increased. This object is achieved by the combination of features according to the claims.

Nachfolgend werden Ausführungsbeispiele der Erfindung anhand der Zeichnung erläutert. Darin zeigt:

Fig. 1
eine perspektivische Ansicht eines Printers,
Fig. 2
einen schematischen Querschnitt durch den Druckkopf des Printers,
Fig. 3
einen Längsschnitt durch einen Tinten-Vorratsbehälter, und
Fig. 4
eine zweite Ausführungsform des Vorratsbehälters.
Exemplary embodiments of the invention are explained below with reference to the drawing. It shows:
Fig. 1
a perspective view of a printer,
Fig. 2
a schematic cross section through the print head of the printer,
Fig. 3
a longitudinal section through an ink reservoir, and
Fig. 4
a second embodiment of the storage container.

Der Printer nach Fig. 1 hat ein Gehäuse 1, in welchem ein Schlitten 2 horizontal verfahrbar ist. Der Schlitten 2 trägt einen Druckkopf 3. Der Druckkopf 3 hat mehrere Inkjet-Düsen 4 und einen Tintenvorrat, z.B. in Form eines mit Tinte getränkten Schaumkörpers 5. Neben dem Gehäuse 1 ist ein Vorratsbehälter 10 mit freier Tinte 11 (Fig. 3) mit einer freien Oberfläche 12 angeordnet. Der Behälter 10 ist in einer Wanne 13 vertikal beweglich geführt und auf Federn 14 abgestützt. Die Federkonstante dieser Federn 14 ist derart bemessen, dass die Oberfläche 12 unabhängig vom Tinten-Vorratsvolumen auf annähernd gleichem Niveau bleibt. Dieses Niveau ist etwas tiefer als das Niveau der Düsen 4, so dass im Druckkopf 3 ein geringfügiger Unterdruck gebildet wird.1 has a housing 1, in which a carriage 2 can be moved horizontally. The carriage 2 carries a print head 3. The print head 3 has several inkjet nozzles 4 and an ink supply, e.g. in the form of a foam body 5 soaked with ink. In addition to the housing 1, a reservoir 10 with free ink 11 (FIG. 3) with a free surface 12 is arranged. The container 10 is guided vertically movably in a trough 13 and is supported on springs 14. The spring constant of these springs 14 is dimensioned such that the surface 12 remains at approximately the same level regardless of the ink supply volume. This level is somewhat lower than the level of the nozzles 4, so that a slight negative pressure is formed in the print head 3.

Der Vorratsbehälter 10 ist mit dem Druckkopf 3 über eine Verbindungsleitung 20 verbunden. Diese besteht aus einem in die Tinte 11 eingetauchten Röhrchen 21, einer in den Schaumkörper 5 eingesteckten Hohlnadel 22 und einem das Röhrchen 21 und die Nadel 22 verbindenden, flexiblen Verbindungsschlauch 23.The reservoir 10 is connected to the print head 3 via a connecting line 20. This consists of a tube 21 immersed in the ink 11, a hollow needle 22 inserted into the foam body 5 and one Tube 21 and the flexible connecting tube 23 connecting the needle 22.

Um bei Inbetriebnahme die Leitung 20 mit der Tinte zu füllen ist auf dem Behälterdeckel 15 ein Pumpmittel angeordnet. Dieses ist in Fig. 3 als Luftpumpe 26 angedeutet. Die vereinfacht dargestellte Pumpe 26 besteht aus einer aufgewölbten Gummimembran 27, die in der Mitte ein Loch 28 hat und am Rand auf dem Behälterdeckel 15 befestigt ist. Unterhalb der Membran 27 hat der Deckel 15 eine Oeffnung 29, die innen durch einen abhebbaren, flexiblen Folienlappen 30 verschlossen ist. Dieser bildet ein Rückschlagventil. Mit dieser Pumpe 26 kann manuell durch mehrmaliges Eindrücken der Membran 27 etwas Ueberdruck im Luftraum oberhalb der Tintenoberfläche 12 erzeugt werden. Damit wird die Tinte 11 in die Verbindungsleitung 20 getrieben. Sobald diese gefüllt ist, d.h. wenn etwas Tinte aus den Düsen 4 austritt, wird der Luftraum oberhalb der Oberfläche 12 wieder mit Atmosphärendruck beaufschlagt. Dazu kann z.B. ein Gummipfropfen 35 aus einer Oeffnung 36 des Deckels 15 oberhalb der Oberfläche 12 ausgezogen werden. Die Belüftungsöffnung kann auch in der Pumpe 26 integriert sein.In order to fill the line 20 with the ink during commissioning, a pumping means is arranged on the container lid 15. This is indicated in Fig. 3 as an air pump 26. The pump 26 shown in simplified form consists of an arched rubber membrane 27, which has a hole 28 in the middle and is attached to the edge of the container lid 15. Below the membrane 27, the cover 15 has an opening 29 which is closed on the inside by a flexible film tab 30 which can be lifted off. This forms a check valve. This pump 26 can be used to manually produce a slight excess pressure in the air space above the ink surface 12 by repeatedly pressing in the membrane 27. The ink 11 is thus driven into the connecting line 20. As soon as it is filled, i.e. If some ink emerges from the nozzles 4, the air space above the surface 12 is again subjected to atmospheric pressure. For this, e.g. a rubber plug 35 can be pulled out of an opening 36 of the cover 15 above the surface 12. The ventilation opening can also be integrated in the pump 26.

Der erfindungsgemässe Tintenvorrat ermöglicht einen langen, ununterbrochenen Betrieb des Druckkopfs 3, ohne dass er ausgewechselt werden muss. Ein Plotter zum Herstellen von Zeichnungen kann z.B. über Nacht ohne Aufsicht betrieben werden, was bei den heutigen Inkjet-Plottern wegen des beschränkten Tintenvorrats im Druckkopf 3 nicht möglich ist.The ink supply according to the invention enables long, uninterrupted operation of the print head 3 without having to be replaced. A plotter for making drawings can, for example, be operated overnight without supervision are what is not possible with today's inkjet plotters because of the limited ink supply in the print head 3.

In Fig. 4 ist eine zweite Ausführungsform des Vorratsbehälters 10 dargestellt. Dieser besteht hier aus einem luftdicht verschweissten, mit Tinte gefüllten Beutel 40. Am einen Rand 41 des Beutels 40 ist ein Gummipfropfen 42 eingesetzt, durch welchen eine weitere Hohlnadel 43 gesteckt ist. Diese bildet hier das zweite Ende der Verbindungsleitung 20. Der Beutelinnenraum ist luftfrei. Bei der Ausführungsform nach Fig. 4 braucht zum Auffüllen der Verbindungsleitung 20 und des Schaumkörpers 5 des Druckkopfes 3 bloss leicht auf den Beutel 40 gedrückt zu werden. Wenn der Beutel 40 flach ist, ändert sein Innendruck während des Verbrauches des Tintenvorrats nur wenig.4 shows a second embodiment of the storage container 10. This consists here of an airtightly welded bag 40 filled with ink. A rubber plug 42 is inserted at one edge 41 of the bag 40, through which a further hollow needle 43 is inserted. This forms the second end of the connecting line 20. The interior of the bag is free of air. In the embodiment according to FIG. 4, all that is required to fill the connecting line 20 and the foam body 5 of the print head 3 is to be lightly pressed onto the bag 40. When the bag 40 is flat, its internal pressure changes little during the consumption of the ink supply.

Die beschriebenen Zufuhrvorrichtungen eignen sich auch für Druckköpfe 3, die keinen Schaumkörper, sondern einen mit Tinte gefüllten Hohlraum enthalten.The feed devices described are also suitable for print heads 3 which do not contain a foam body, but rather a cavity filled with ink.

Claims (8)

Vorrichtung zur Zufuhr von Tinte zu einem Inkjet-Printer oder -Plotter, der ein Gehäuse (1), einen im Gehäuse (1) horizontal verfahrbaren Druckkopf (3) mit Inkjet-Düsen (4) und einem Tintenvorrat aufweist, gekennzeichnet durch einen mit Tinte (11) gefüllten Vorratsbehälter (10) und eine Verbindungsleitung (20), deren erstes Ende (22) in den Tintenvorrat des Druckkopfs (3) eingesteckt ist und deren zweites Ende (21,43) in die Tinte (11) im Vorratsbehälter (10) eingetaucht ist.Device for supplying ink to an inkjet printer or plotter, which has a housing (1), a print head (3) which can be moved horizontally in the housing (1) with inkjet nozzles (4) and an ink supply, characterized by an ink (11) filled reservoir (10) and a connecting line (20), the first end (22) of which is inserted into the ink reservoir of the printhead (3) and the second end (21, 43) of which is in the ink (11) in the reservoir (10 ) is immersed. Vorrichtung nach Anspruch 1, wobei der Vorratsbehälter (10) am Gehäuse (1) angeordnet ist und die Verbindungsleitung (20) mindestens teilweise flexibel ist.Apparatus according to claim 1, wherein the storage container (10) is arranged on the housing (1) and the connecting line (20) is at least partially flexible. Vorrichtung nach Anspruch 1 oder 2, wobei der Vorratsbehälter (10) federnd abgestützt ist, derart, dass das Niveau der freien Tintenoberfläche (12) annähernd unabängig ist vom Tintenvorratsvolumen.Apparatus according to claim 1 or 2, wherein the reservoir (10) is resiliently supported such that the level of the free ink surface (12) is approximately independent of the ink supply volume. Vorrichtung nach einem der Ansprüche 1 bis 3, wobei das erste Ende der Verbindungsleitung (20) durch eine Hohlnadel (22) gebildet ist.Device according to one of claims 1 to 3, wherein the first end of the connecting line (20) is formed by a hollow needle (22). Vorrichtung nach einem der Ansprüche 1 bis 4, wobei am Vorratsbehälter (10) ein Pumpmittel (26) angeordnet ist, um die Verbindungsleitung (20) mit Tinte zu füllen.Device according to one of claims 1 to 4, wherein a pump means (26) is arranged on the reservoir (10) to fill the connecting line (20) with ink. Vorrichtung nach Anspruch 5, wobei das Pumpmittel eine Luftpumpe (26) ist, deren Mündung oberhalb der freien Tintenoberfläche mündet.Apparatus according to claim 5, wherein the pumping means is an air pump (26), the mouth of which opens above the free ink surface. Vorrichtung nach einem der Ansprüche 1 bis 6, wobei der Vorratsbehälter (10) durch einen luftdicht verschlossenen, thermoplastischen Beutel (40) gebildet ist.Device according to one of claims 1 to 6, wherein the storage container (10) is formed by an airtight, thermoplastic bag (40). Vorrichtung nach Anspruch 7, wobei das zweite Ende der Verbindungsleitung (20) durch eine weitere Hohlnadel (43) gebildet ist, die durch einen Gummipfropfen (42) des Beutels (40) gesteckt ist.Apparatus according to claim 7, wherein the second end of the connecting line (20) is formed by a further hollow needle (43) which is inserted through a rubber stopper (42) of the bag (40).
EP93810903A 1993-01-07 1993-12-23 Ink supply for an ink jet printer or plotter Expired - Lifetime EP0606047B2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE9300133U DE9300133U1 (en) 1993-01-07 1993-01-07
DE9300133U 1993-01-07

Publications (4)

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EP0606047A2 true EP0606047A2 (en) 1994-07-13
EP0606047A3 EP0606047A3 (en) 1994-09-21
EP0606047B1 EP0606047B1 (en) 1997-06-04
EP0606047B2 EP0606047B2 (en) 2001-08-29

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0865926A1 (en) 1997-03-17 1998-09-23 Pelikan Produktions Ag Ink cartridge for an ink jetprinter or plotter
EP0999059A1 (en) * 1997-03-12 2000-05-10 Copyer Co., Ltd. Ink supply apparatus and ink filling method
CN1082894C (en) * 1995-09-13 2002-04-17 美国3M公司 Printing fluid supply system
US6474800B1 (en) 1998-08-28 2002-11-05 Wincor Nixdorf Gmbh & Co. Kg Matrix printer and interchangeable container for color ink supply
US7246882B2 (en) 1998-05-18 2007-07-24 Seiko Epson Corporation Ink-jet printing apparatus and ink cartridge therefor

Families Citing this family (13)

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CA1299553C (en) * 1987-03-11 1992-04-28 Ruben Nevarez Method and apparatus for priming an ink jet pen
US5903292A (en) * 1991-06-19 1999-05-11 Hewlett-Packard Company Ink refill techniques for an inkjet print cartridge which leave correct back pressure
US5745137A (en) 1992-08-12 1998-04-28 Hewlett-Packard Company Continuous refill of spring bag reservoir in an ink-jet swath printer/plotter
US5369429A (en) * 1993-10-20 1994-11-29 Lasermaster Corporation Continuous ink refill system for disposable ink jet cartridges having a predetermined ink capacity
WO1995011424A1 (en) * 1993-10-20 1995-04-27 Lasermaster Corporation Automatic ink refill system for disposable ink jet cartridges
BE1008723A3 (en) * 1994-09-26 1996-07-02 Cuypers Daniel Device for filling ink automatically from a bottle of ink into an inkplotter with a cartridge and printing head
US5992985A (en) * 1995-05-31 1999-11-30 Hewlett-Packard Company Variable pressure control for ink replenishment of on-carriage print cartridge
US6076920A (en) * 1995-05-31 2000-06-20 Hewlett-Packard Company Replaceable ink supply module (bag/box/tube/valve) for replenishment of on-carriage inkjet printhead
US5929883A (en) * 1997-03-03 1999-07-27 Hewlett-Packard Company Printing system with single on/off control valve for periodic ink replenishment of inkjet printhead
US6106109A (en) * 1997-03-03 2000-08-22 Hewlett-Packard Company Printer apparatus for periodic automated connection of ink supply valves with multiple inkjet printheads
US6030073A (en) * 1997-03-03 2000-02-29 Hewlett-Packard Company Space-efficient enclosure shape for nesting together a plurality of replaceable ink supply bags
US6139135A (en) * 1997-03-03 2000-10-31 Hewlett-Packard Company Inkjet printing with replaceable set of ink-related components (printhead/service module/ink supply) for each color of ink
DE102009026081A1 (en) * 2009-05-14 2010-11-18 Pelikan Hardcopy Production Ag Ink cartridge and associated inkjet printer

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Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1082894C (en) * 1995-09-13 2002-04-17 美国3M公司 Printing fluid supply system
EP0999059A1 (en) * 1997-03-12 2000-05-10 Copyer Co., Ltd. Ink supply apparatus and ink filling method
EP0999059A4 (en) * 1997-03-12 2000-08-30 Copyer Co Ink supply apparatus and ink filling method
EP0865926A1 (en) 1997-03-17 1998-09-23 Pelikan Produktions Ag Ink cartridge for an ink jetprinter or plotter
DE19710969A1 (en) * 1997-03-17 1998-10-01 Pelikan Produktions Ag Ink tank for an inkjet printer or plotter
US6099115A (en) * 1997-03-17 2000-08-08 Pelikan Produktions Ag Ink reservoir for an ink jet printer or plotter
DE19710969C2 (en) * 1997-03-17 2000-11-23 Pelikan Produktions Ag Egg Ink tank for an inkjet printer or plotter
US7246882B2 (en) 1998-05-18 2007-07-24 Seiko Epson Corporation Ink-jet printing apparatus and ink cartridge therefor
US7284850B2 (en) 1998-05-18 2007-10-23 Seiko Epson Corporation Ink-jet printing apparatus and ink cartridge therefor
US7669969B2 (en) 1998-05-18 2010-03-02 Seiko Epson Corporation Ink-jet printing apparatus and ink cartridge therefor
US7954934B2 (en) 1998-05-18 2011-06-07 Seiko Epson Corporation Ink-jet printing apparatus and ink cartridge therefor
US6474800B1 (en) 1998-08-28 2002-11-05 Wincor Nixdorf Gmbh & Co. Kg Matrix printer and interchangeable container for color ink supply

Also Published As

Publication number Publication date
EP0606047B2 (en) 2001-08-29
EP0606047B1 (en) 1997-06-04
EP0606047A3 (en) 1994-09-21
DE9300133U1 (en) 1993-04-22
DE59306665D1 (en) 1997-07-10

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