EP0426661A1 - Reservoir d'encre pour dispositifs d'impression a l'encre comportant un dispositif pour empecher le remplissage non autorise - Google Patents

Reservoir d'encre pour dispositifs d'impression a l'encre comportant un dispositif pour empecher le remplissage non autorise

Info

Publication number
EP0426661A1
EP0426661A1 EP19880905723 EP88905723A EP0426661A1 EP 0426661 A1 EP0426661 A1 EP 0426661A1 EP 19880905723 EP19880905723 EP 19880905723 EP 88905723 A EP88905723 A EP 88905723A EP 0426661 A1 EP0426661 A1 EP 0426661A1
Authority
EP
European Patent Office
Prior art keywords
ink
ink supply
supply container
contact
closure 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.)
Ceased
Application number
EP19880905723
Other languages
German (de)
English (en)
Inventor
Wolfgang Wehl
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Siemens AG
Original Assignee
Siemens 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
Application filed by Siemens AG filed Critical Siemens AG
Publication of EP0426661A1 publication Critical patent/EP0426661A1/fr
Ceased legal-status Critical Current

Links

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
    • B41J2/17503—Ink cartridges
    • B41J2/17543—Cartridge presence detection or type identification
    • B41J2/17546—Cartridge presence detection or type identification electronically
    • 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
    • B41J2/17503—Ink cartridges
    • B41J2/17506—Refilling of the cartridge

Definitions

  • Ink reservoir for ink printing devices with a device against unauthorized refilling.
  • the invention relates to an ink reservoir for ink pressure devices.
  • a writing head which moves along a recording medium is generally supplied with writing liquid from a storage bottle by an ink supply system.
  • the writing head can consist of a mosaic writing head in which several writing nozzles are arranged. Due to the contraction processes taking place in these writing nozzles during the writing operation, such a writing head independently supplies itself with writing liquid from an ink reservoir.
  • Such ink reservoirs are generally designed to be exchangeable (DE-PS 26 10 518).
  • Ink reservoirs for ink printing devices are usually designed as disposable containers which are filled with ink at the factory and which must not be reused after the ink supply has been used up. Refilling the ink reservoir is not provided because this refilling harbors the risk of air entering the ink reservoir. Air bubbles contained in the ink lead to malfunctions in the writing operation, especially when the ink printing device works according to the vacuum principle, a principle in which the ink supply system has a low vacuum compared to the actual writing nozzle.
  • Ink printing devices be it bubble jet printing devices or printing devices operating according to the piezoelectric principle, require a matching ink liquid in their composition.
  • the object of the invention is to design an ink supply container of the type mentioned at the outset in such a way that unauthorized refilling of used ink supply containers is prevented or that unauthorized refilled ink supply containers can be recognized.
  • a check valve is arranged in the connection area of the ink supply container, which closes the connection area after an initial filling of the ink supply container with the valve open in such a way that ink liquid can only be removed from the ink supply container via the connection area Refilling of a used ink reservoir is reliably prevented.
  • the check valve contains a movable closure element and a latching device for the closure element.
  • the closure element When the ink reservoir is filled for the first time, the closure element is in the locked position. After filling, the closure element is moved beyond the latching position and thus brought into an operating position in which the closure element, in the manner of a flap valve, connects to the ink reservoir via an elastic sealing element depending on the direction of flow of the ink. seals or opens.
  • the check valve is arranged within the connection area of the storage container in such a way that the closure element can no longer be moved from the outside into the open locking position after reaching the operating position.
  • the closure element can be a lamellar elastic element or a movable ball.
  • a contact element can be arranged in the bottom area of the ink supply container, which element interacts with an elastic wall of the ink supply container, so that when a minimum volume is reached, the elastic wall of the collapsed ink supply container actuates the contact element.
  • the contact element is designed in such a way that after reaching the minimum volume it maintains its contact position irrespective of refilling the ink container with ink.
  • the contact position of the contact element is detected by the control arrangement of the printing device which, depending on the contact position, actuates a warning device and / or interrupts the printing operation.
  • the contact element is a magnetic contact element, in which one contact side of the contact element is made of magnetizable material, for example stainless steel, and a magnetic element is arranged on the other contact side.
  • the movable wall (bubble film) of the ink reservoir presses the one contact side made of steel into the effective range of the magnetic element and the contact is irreversibly closed when the magnetic element itself makes the counter contact forms or it is opened irreversibly if separate contact pins are arranged as counter contacts.
  • FIG. 1 shows a schematic sectional illustration through an ink reservoir with a magnetic contact element arranged in the ink reservoir
  • FIG. 2 shows a schematic sectional illustration of the connection area of an ink supply container with a check valve arranged therein, which is designed as a flutter valve
  • FIG. 3 shows a schematic sectional illustration of the check valve of FIG. 2 in the operating state
  • FIG. 4 shows a schematic sectional view of the connection area of an ink reservoir with a check valve with a ball as a sealing element in the filled state
  • FIG. 5 shows a schematic sectional view of the check valve of FIG. 4 in the operating state.
  • the structure of the ink reservoir corresponds to that of the ink reservoir, which can be found in DE-PS 26 10 518. It has a trough-like support body 10 which is covered with an elastic blister film 11, for example made of polyethylene. Furthermore, the ink supply container has a removal opening with an elastic sealing element 12 arranged therein, which is penetrated by a hollow needle when the ink supply container is inserted into a receiving device (not shown) of the ink printing device. In that by the support body 10 and the bubble film 11 formed cavity is ink liquid.
  • a contact element 13 is arranged on the bottom of the ink reservoir within the trough-like support body 10.
  • the contact element consists of a contact spring 14 made of a magnetizable material, e.g. stainless steel.
  • a magnetic element 15 e.g. arranged from soft iron.
  • the contact path consists of contact spring 14 and magnetic element 15.
  • contact element 13 is connected to controller 17 of the ink printing device, which monitors the contact path with regard to its contact position.
  • the bubble film 11 presses the contact spring 14 down and thus brings it into the effective range of the magnetic counter-contact 15, whereby the contact is closed.
  • This closed contact is recognized by the control device 17 of the ink printing device and a warning device, e.g. in the form of a warning lamp 18, operated. At the same time, further operation of the ink printing device is prevented.
  • the magnet maintains the closed state of the ink reservoir even after it has been refilled.
  • the control device 17 also recognizes the closed contact after refilling and continues to report "ink end" when an ink reservoir filled in this way is inserted.
  • the warning lamp 18 is activated and the start of the printing operation via the control 17 is prevented. So that there are no disruptions when the ink reservoir is filled for the first time during manufacture in the factory, the contact element can be installed in the actuated state when assembling the ink reservoir. After the ink supply container has been filled for the first time, the ink supply container is exposed to a strong external magnetic field which counteracts the action of the magnetic element 15 and thus releases the contact spring 14 from the magnetic element 15 and brings it into the operating position.
  • the contact parts of the contact elements can be coated with a protective layer, which must be made conductive in the contact area, or it is possible to add a protective agent to the ink liquid.
  • a check valve is arranged in the connection area of the ink supply container, which is designed such that after the ink supply container has been filled for the first time with the valve open, the check valve closes the connection area in such a way that only removal of ink liquid from the ink reservoir via the connection area is possible.
  • the check valve contains a movable closure element 19 which acts in the form of a flap valve. It is fastened on one side in a recess of the support body 10 and consists of an elastic membrane, for example made of plastic.
  • the recess 20 of the supporting body contains a latching device with a latching element 21 and is closed to the outside of the ink reservoir except for a central ink removal opening 22.
  • a corresponding removal opening 23 is located in the partition between the recess 20 and the actual ink supply area filled with ink.
  • the connection area and thus the check valve is covered by a sealing element 24 made of rubber, which is penetrated by a hollow needle 25 assigned to the ink printing device when the ink storage container is inserted into the receiving device of the ink printing device.
  • the check valve works as follows:
  • Locking element 19 in the locked position shown in FIG. 2.
  • the closure element 19 can be flowed around laterally by ink liquid, the ink liquid being supplied via the hollow needle 25 which is only half inserted or directly via the opening 22.
  • the ink liquid flows around the closure element 19 and thus fills the actual ink supply area.
  • the hollow needle 25 is pushed further into the ink reservoir. It presses the closure element 19 over the latching element 21, so that the closure element 19 comes into the operating position shown in FIG. 3, in which it covers the inner access opening 23 to the ink reservoir in the manner of a flap valve.
  • the hollow needle 25 penetrates the sealing element 24 and ink can be removed from the ink reservoir in the direction of the arrow. If an attempt is made to refill the ink reservoir by supplying ink from the outside to the used ink reservoir, this is prevented by the elastic closure element 19.
  • the closure element cannot be brought back into the starting position shown in FIG. 2, in which the closure element, without destroying the entire ink reservoir 19 behind the Locking element 21 is locked. This prevents a refilled and used ink reservoir from being refilled.
  • the closure element consists of a steel ball 26 which can be moved within a central opening 27.
  • the ball 26 is located in a latching device made of a holding device 28 made of plastic which loosely surrounds the ball and is designed such that ink liquid can flow around the ball in the direction of the arrow.
  • the ball 26 After filling the ink reservoir, e.g. Via the hollow needle 25 when the ink supply container is inserted into the ink printing device, the ball 26 is brought into the operating position shown in FIG. It overcomes the latching device 28 and comes to rest in the area of the concentrically formed connection opening 29 to the ink supply area of the ink reservoir. There it acts as a check valve so that ink can only be removed in the direction of the arrow shown. If ink is supplied from the outside, the ball 26 closes the opening 29.

Abstract

Un réservoir d'encre échangeable pour dispositifs d'impression à l'encre présente un dispositif empêchant le remplissage non autorisé. Ce dispositif peut être constitué par un contact magnétique (13) disposé à l'intérieur du réservoir, ou encore, par une soupape de non-retour montée dans la zone d'alimentation dudit réservoir.
EP19880905723 1988-07-25 1988-07-25 Reservoir d'encre pour dispositifs d'impression a l'encre comportant un dispositif pour empecher le remplissage non autorise Ceased EP0426661A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/DE1988/000463 WO1990000976A1 (fr) 1988-07-25 1988-07-25 Reservoir d'encre pour dispositifs d'impression a l'encre comportant un dispositif pour empecher le remplissage non autorise

Publications (1)

Publication Number Publication Date
EP0426661A1 true EP0426661A1 (fr) 1991-05-15

Family

ID=6819610

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19880905723 Ceased EP0426661A1 (fr) 1988-07-25 1988-07-25 Reservoir d'encre pour dispositifs d'impression a l'encre comportant un dispositif pour empecher le remplissage non autorise

Country Status (3)

Country Link
EP (1) EP0426661A1 (fr)
JP (1) JPH03505999A (fr)
WO (1) WO1990000976A1 (fr)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04214360A (ja) * 1990-12-10 1992-08-05 Canon Inc インクジェット記録装置，該装置用インクタンクカートリッジ、および該カートリッジの製造方法
US5606988A (en) * 1994-02-04 1997-03-04 Hewlett -Packard Company Connector assembly for ink cartridge
FR2740728B1 (fr) * 1995-11-08 1998-01-23 Canon Kk Dispositif de transfert d'image a reserve d'encre interchangeable
FR2744391B1 (fr) * 1996-02-01 1998-03-06 Imaje Sa Imprimante industrielle apte a recevoir au moins une cartouche de consommable
DE19613943C2 (de) * 1996-04-06 1999-04-22 Francotyp Postalia Gmbh Wiederverwendbarkeitssperre für einen Behälter für die Tintenversorgung
DE19613945C2 (de) * 1996-04-06 1999-04-22 Francotyp Postalia Gmbh Wiederverwendbarkeitssperre für einen Behälter für die Tintenversorgung
DE19613944C1 (de) * 1996-04-06 1997-09-11 Francotyp Postalia Gmbh Anordnung zur Tintenversorgung und Tintenentsorgung für einen Tintendruckkopf
JP4193435B2 (ja) 2002-07-23 2008-12-10 ブラザー工業株式会社 インクカートリッジ、および、そのインク充填方法
US7137689B2 (en) 2002-03-28 2006-11-21 Brother Kogyo Kabushiki Kaisha Ink cartridge
ATE275479T1 (de) 2002-03-28 2004-09-15 Brother Ind Ltd Tintenkartusche und verfahren zu seiner herstellung
ATE283765T1 (de) 2002-03-28 2004-12-15 Brother Ind Ltd Tintenkartusche
ES2236414T3 (es) 2002-03-28 2005-07-16 Brother Kogyo Kabushiki Kaisha Cartucho de tinta.
US6976749B2 (en) 2002-03-28 2005-12-20 Brother Kogyo Kabushiki Kaisha Ink cartridge and recording device
US6886928B2 (en) 2002-03-28 2005-05-03 Brother Kogyo Kabushiki Kaisha Ink cartridge and method of production thereof

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3704813A (en) * 1969-12-08 1972-12-05 George C Devol Valve systems for non-refillable containers
DE3037874C2 (de) * 1980-10-07 1982-08-19 Siemens AG, 1000 Berlin und 8000 München Vorrichtung zur Überwachung des Tintenvorrates in mit Unterdruck arbeitenden Tintenschreibeinrichtungen
DE3422504A1 (de) * 1984-06-16 1986-01-02 Olympia Werke Ag, 2940 Wilhelmshaven Endanzeigevorrichtung des tintenvorrats in einem tintenbehaelter mit einem flexiblen tintensack

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO9000976A1 *

Also Published As

Publication number Publication date
JPH03505999A (ja) 1991-12-26
WO1990000976A1 (fr) 1990-02-08

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