EP1186421B1 - Réservoir d'alimentation en encre - Google Patents

Réservoir d'alimentation en encre Download PDF

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Publication number
EP1186421B1
EP1186421B1 EP00119055A EP00119055A EP1186421B1 EP 1186421 B1 EP1186421 B1 EP 1186421B1 EP 00119055 A EP00119055 A EP 00119055A EP 00119055 A EP00119055 A EP 00119055A EP 1186421 B1 EP1186421 B1 EP 1186421B1
Authority
EP
European Patent Office
Prior art keywords
ink
chamber
supply container
ink supply
container according
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
EP00119055A
Other languages
German (de)
English (en)
Other versions
EP1186421A1 (fr
Inventor
Helmut Dr. Michele
Peter Busch
Dirk Klein
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.)
Artech GmbH Design and Production in Plastic
Original Assignee
Artech GmbH Design and Production in Plastic
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
Priority to DE19920922A priority Critical patent/DE19920922C1/de
Priority to US09/653,766 priority patent/US6394592B1/en
Application filed by Artech GmbH Design and Production in Plastic filed Critical Artech GmbH Design and Production in Plastic
Priority to EP00119055A priority patent/EP1186421B1/fr
Priority to ES00119055T priority patent/ES2234492T3/es
Publication of EP1186421A1 publication Critical patent/EP1186421A1/fr
Application granted granted Critical
Publication of EP1186421B1 publication Critical patent/EP1186421B1/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
    • B41J2/17503—Ink cartridges
    • B41J2/17513—Inner structure
    • 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
    • B41J2/1714—Conditioning of the outside of ink supply systems, e.g. inkjet collector cleaning, ink mist removal
    • 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
    • B41J2/1752—Mounting within the printer
    • B41J2/17523—Ink connection

Definitions

  • the present invention relates to an ink reservoir for an ink jet printer, which has an ink-fillable chamber in whose Bottom is an ink outlet with an ink outlet opening.
  • Such ink reservoirs are in a variety of embodiments known and serve to supply inkjet printheads in Inkjet printers or plotters.
  • the ink reservoir a housing associated with the actual inkjet printhead is combined to form an integral unit, or it forms a pure storage tank, the corresponding connection means at its Ink outlet opening with the supply line of a printhead connectable is.
  • the outer shape of the housing is in each case one customized special printer type. A variety of these designs is common, however, that the housing is substantially cuboid is, wherein the ink outlet with the actual ink outlet opening on the bottom, d. H. located in the ground.
  • connection means for the print head usually as a connecting pin or Cannula are formed, usually require a so corresponding connecting piece or the like, which guides the cannula and seals and therefore must have a corresponding installation depth.
  • the invention proposes starting from an ink reservoir of the type mentioned above, that the ink outlet siphon-like, with a from the ink outlet opening extending inside the chamber leg, which has a Umlenkbogen merges into a suction opening, which from the inside against the Chamber bottom is directed.
  • a siphon is integrated in the chamber bottom, d. H. one arcuate flow channel whose legs both with their openings are directed downwards.
  • the one opening is identical to the one Ink outlet and can be configured with respect to the connection means be, as the known in the prior art connecting piece. Alternatively, there may also be attached directly to the printhead.
  • the suction port At the the other end of the siphon is the suction port, through which the ink is sucked out of the chamber.
  • the particular invention Arrangement is that the suction opening vertically from above with small distance is directed against the bottom of the chamber.
  • the small distance of the suction opening from the chamber bottom should be so Be measured that the product of the edge length of the suction port and the distance about the required flow area of the ink outlet equivalent. As a rule, this is at a distance of significantly below 1 mm. This results in the further advantage that due the existing surface tension of the ink is almost complete Emptying the chamber is readily possible, regardless of the length of the connecting piece.
  • Tintenauslasses provides that one leg is a vertical upward directed pipe section is on which one with radial and axial Distance cross-cap is attached. This is almost a coaxial siphon formed.
  • the central pipe section is regarding Length and diameter dimensioned so that it is for receiving the cannula or of the mandrel on the printer is suitable.
  • the pipe section is straight cut off.
  • the deflection cap is from the top of the pipe end attached, wherein the annular gap between the outer wall of the Pipe section and the inner wall of the Umlenkkappe the other Thighs of the siphon forms.
  • the suction opening is thus also annular and is located around the passage edge of the Intake manifold circulating on the bottom of the chamber. At the top opens the annulus between the cap and tube over the existing axial distance there between the ceiling of the cap and the pipe end in the Pipe section.
  • the pipe section can be integrally attached to the housing, d. H. the Be formed chamber and having radially projecting retaining ribs. These should be sized so that the deflection cap only by friction is firmly attachable. This can also be considered inexpensive and be rational to be manufactured plastic injection molded part.
  • connection means for provided an inkjet printhead are, for example, seals and the like, which dense receiving a terminal cannula allow and are located in the outer leg of the siphon.
  • the ink reservoir may be insoluble with an inkjet printhead be connected, which then instead of the aforementioned connection means connected to the ink reservoir to an integral unit is.
  • an ink reservoir is shown schematically in section and provided therein as a whole with the reference numeral 1.
  • This consists of a substantially cuboid plastic housing 2, which with free-flowing ink 3 is filled.
  • the housing 2 At the bottom of the housing 2 is an inventive ink outlet, the total is provided with the reference numeral 4 and one after has downwardly directed ink outlet opening into which a connecting cannula 5 of an ink jet printer not shown in detail or Plotter is inserted, which is indicated by the arrow.
  • the ink outlet 4 is shown in Figure 1 again increased in all details shown, wherein the same reference numerals use Find. It can be seen that on the housing bottom 2a in the Interior of the housing 2, so in the ink chamber extending leg. 6 is formed, which is formed substantially as a pipe section and to its lower end the ink outlet opening for receiving the Connecting cannula 5 has and is cut straight at its upper end.
  • Connection means 7 are arranged, for example, the O-rings, a pierceable septum or the like may contain.
  • the particular advantage of the invention is that the ink 3 thanks to the siphon-shaped flow path as long as possible via the connecting cannula 5, i. can be sucked off until the ink level below the gap width between the lower edge of the deflection cap 8 and the Caseback 2 drops. In practice, this distance can be so tight are that due to the surface tension, the ink 3 almost completely is removed.
  • the Housing 2 partitions 10 may be attached, extending over the housing cross-section extend, however, between their base and the Housing 2, i. the housing bottom 2a, a narrow flow gap free to let.
  • the interior of the housing is divided into narrow compartments, in which the ink contained therein 3 even with rapid movements of the Ink supply container 1 less to rocking, as if the Housing 2 would not be divided.
  • This has the advantage that even with violent Movement, for example in the direction reversal during printing, at the ink outlet 4 the instantaneous ink level will not drop so much that 5 air is sucked in via the connecting cannula.

Landscapes

  • Ink Jet (AREA)

Claims (10)

  1. Réservoir (1) d'alimentation en encre destiné à une imprimante à jet d'encre, qui présente une chambre (2) que l'on peut remplir d'encre (3) et dans le côté inférieur de laquelle se trouve une sortie d'encre (4) qui présente un orifice de sortie d'encre, caractérisé en ce que la sortie d'encre (4) est configurée en forme de siphon et comprend une branche (6) qui s'étend depuis l'orifice de sortie d'encre jusqu'à l'intérieur de la chambre et qui, par l'intermédiaire d'une courbe de renvoi (8), se prolonge en un orifice d'aspiration qui est orienté vers le fond (2a) de la chambre.
  2. Réservoir d'alimentation en encre selon la revendication 1, caractérisé en ce que la chambre (2) peut être remplie d'encre à écoulement libre (3).
  3. Réservoir d'alimentation en encre selon la revendication 1, caractérisé en ce que l'orifice d'aspiration est orienté verticalement vers le fond (2a) de la chambre et est situé à petite distance de celui-ci.
  4. Réservoir d'alimentation en encre selon la revendication 1, caractérisé en ce que la branche (6) est une section de tube orientée verticalement vers le haut, sur laquelle est apporté un capuchon de renvoi (8) qui l'enveloppe à distance radialement et axialement.
  5. Réservoir d'alimentation en encre selon la revendication 1, caractérisé en ce que le capuchon de renvoi (8) est fixé sur des nervures de maintien (9) qui débordent radialement de la section de tube (6).
  6. Réservoir d'alimentation en encre selon la revendication 1, caractérisé en ce que des parois de séparation (10) mutuellement parallèles dont les bords inférieurs se terminent au-dessus du fond (2a) de la chambre sont agencées dans la chambre (2).
  7. Réservoir d'alimentation en encre selon la revendication 6, caractérisé en ce que la distance entre les parois de séparation (10) et le fond de chambre (2a) est sensiblement aussi grande que la distance entre l'orifice d'aspiration de la sortie d'encre (4) et le fond (2a) de la chambre.
  8. Réservoir d'alimentation en encre selon la revendication 1, caractérisé en ce que la sortie d'encre (4) est dotée de moyens de raccordement (7) destinés à une imprimante à jet d'encre.
  9. Réservoir d'alimentation en encre selon la revendication 1, caractérisé en ce que le réservoir d'alimentation en encre (1) est relié de manière indissoluble à une tête d'impression à jet d'encre.
  10. Réservoir d'alimentation en encre selon la revendication 1, caractérisé en ce que la sortie d'encre (4) est formée d'une ou de plusieurs pièces (6, 8) en matière synthétique moulée par injection.
EP00119055A 1999-05-06 2000-09-02 Réservoir d'alimentation en encre Expired - Lifetime EP1186421B1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
DE19920922A DE19920922C1 (de) 1999-05-06 1999-05-06 Tintenvorratsbehälter
US09/653,766 US6394592B1 (en) 1999-05-06 2000-09-01 Ink reservoir
EP00119055A EP1186421B1 (fr) 1999-05-06 2000-09-02 Réservoir d'alimentation en encre
ES00119055T ES2234492T3 (es) 1999-05-06 2000-09-02 Deposito de reserva de tinta.

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19920922A DE19920922C1 (de) 1999-05-06 1999-05-06 Tintenvorratsbehälter
US09/653,766 US6394592B1 (en) 1999-05-06 2000-09-01 Ink reservoir
EP00119055A EP1186421B1 (fr) 1999-05-06 2000-09-02 Réservoir d'alimentation en encre

Publications (2)

Publication Number Publication Date
EP1186421A1 EP1186421A1 (fr) 2002-03-13
EP1186421B1 true EP1186421B1 (fr) 2005-02-09

Family

ID=27219134

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00119055A Expired - Lifetime EP1186421B1 (fr) 1999-05-06 2000-09-02 Réservoir d'alimentation en encre

Country Status (4)

Country Link
US (1) US6394592B1 (fr)
EP (1) EP1186421B1 (fr)
DE (1) DE19920922C1 (fr)
ES (1) ES2234492T3 (fr)

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3799053A (en) * 1972-07-13 1974-03-26 Marsh Stencil Machine Co Hand printer
JP3513979B2 (ja) * 1994-09-16 2004-03-31 セイコーエプソン株式会社 インクジェットプリンタ用インクカートリッジ
US5103243A (en) 1988-12-16 1992-04-07 Hewlett-Packard Company Volumetrically efficient ink jet pen capable of extreme altitude and temperature excursions
US4931811A (en) * 1989-01-31 1990-06-05 Hewlett-Packard Company Thermal ink jet pen having a feedtube with improved sizing and operational with a minimum of depriming
US5451995A (en) * 1992-12-22 1995-09-19 Hewlett-Packard Company Rigid loop case structure for thermal ink-jet pen
US5971530A (en) 1993-10-27 1999-10-26 Canon Kabushiki Kaisha Refillable, evaporation-suppressing liquid container
US5900895A (en) 1995-12-04 1999-05-04 Hewlett-Packard Company Method for refilling an ink supply for an ink-jet printer

Also Published As

Publication number Publication date
DE19920922C1 (de) 2000-12-07
ES2234492T3 (es) 2005-07-01
US6394592B1 (en) 2002-05-28
EP1186421A1 (fr) 2002-03-13

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