EP0536116B1 - Recipient de collecte de liquides perdus dans des systemes d'impression a l'encre - Google Patents

Recipient de collecte de liquides perdus dans des systemes d'impression a l'encre Download PDF

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Publication number
EP0536116B1
EP0536116B1 EP90910679A EP90910679A EP0536116B1 EP 0536116 B1 EP0536116 B1 EP 0536116B1 EP 90910679 A EP90910679 A EP 90910679A EP 90910679 A EP90910679 A EP 90910679A EP 0536116 B1 EP0536116 B1 EP 0536116B1
Authority
EP
European Patent Office
Prior art keywords
disposal container
funnel
container
inlet aperture
ink
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
EP90910679A
Other languages
German (de)
English (en)
Other versions
EP0536116A1 (fr
Inventor
Otmar Irro
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.)
Eastman Kodak Co
Original Assignee
Eastman Kodak Co
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 Eastman Kodak Co filed Critical Eastman Kodak Co
Publication of EP0536116A1 publication Critical patent/EP0536116A1/fr
Application granted granted Critical
Publication of EP0536116B1 publication Critical patent/EP0536116B1/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
    • B41J2/1721—Collecting waste ink; Collectors therefor
    • 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
    • B41J2/1721—Collecting waste ink; Collectors therefor
    • B41J2/1728—Closed waste ink collectors

Definitions

  • the invention relates to a device for disposing of waste ink and flushing liquid in an ink writing device according to the features of claim 1.
  • high-resolution print heads in ink writing devices have a large number of outlet nozzles, from which individual droplets eject droplets of ink in the direction of a recording medium by means of individual control elements assigned to the individual outlet nozzles.
  • characters or graphic patterns are built up on the record carrier during the writing process. Due to the contraction processes occurring in the outlet nozzles during the writing operation, such a writing head automatically supplies itself with writing fluid.
  • Such ink writing devices which work with multi-nozzle writing heads, are sensitive to environmental influences. Causes of possible malfunctions include drying or drying of the writing fluid, strong changes in the viscosity of the writing fluid or contamination of the nozzle area of the writing heads by foreign body particles such as paper dust.
  • a malfunction of the concave ink meniscus at the end of the nozzle for example due to vibration of the printing device during transport, can also lead to malfunctions and ultimately to a breakdown in operation.
  • the writing fluid in the supply system is free of gas or air inclusions.
  • the entire ink supply system must therefore be filled with ink.
  • flushing also has the effect of removing any dirt that may have entered.
  • part of the ink reservoir designed as a supporting body is shaped as a collecting container for this waste ink.
  • This collecting container is connected to the outlet openings of the writing head via a channel which discharges the waste ink and which opens into the collecting container via an inlet opening.
  • a tampon made of absorbent material in the collection container, which absorbs the waste ink.
  • a recording device for receiving flushing or leaking ink, which is arranged below the record carrier and the movable writing head between the side walls of the ink writing device.
  • This consists of a trough-shaped container which is closed on all sides and which has openings on its top through which at the same time Except for ink vapor, the exhaust gases from a corrosion protection agent can also escape.
  • the container also contains a foldable foil pouch with an absorbent material disposed therein. To exchange this absorbent material, the container is arranged so that it can be pulled out of the machine from a position below the transport roller for the recording medium.
  • the invention is based on a device for the disposal of waste liquids known from DE 37 32 797 A1, in which waste ink or rinsing liquid which occurs in cleaning and rinsing procedures are conducted from a cleaning station to a disposal container.
  • the disposal container contains a material which is absorbent for the waste ink or rinsing liquid and is arranged in a pull-out manner in a bottom wall of an ink writing device.
  • the disposal container has a cutout in its front wall inserted into the ink writing device, through which a mouth of a tube for returning used waste ink or flushing liquid projects.
  • waste ink or rinsing liquid escapes in an uncontrolled manner into the receiving space for the disposal container or out of the housing of the ink writing device.
  • the object on which the invention is based is to provide a device for disposing of the waste liquids which occur during cleaning and rinsing procedures in ink writing devices of the type mentioned at the outset, which, with a simple structure, allows the disposal container to be replaced easily and completely free of dirt and also contaminates machine parts within the writing device reliably prevented in the service or transport position of the writing device that deviates from the normal operating position.
  • waste liquids can be disposed of in a very simple and cost-effective manner.
  • the design of the inlet opening in the form of a mushroom-shaped funnel, the oblique funnel walls of which expand in the direction of the absorbent material in the lower part of the container, ensures that residues of the lost liquid are present in all operating positions of the writing device, such as, for example, in the assembly or pivoting position which can be achieved by pivoting Transport position, always in get the container.
  • any contamination of machine parts within the writing device as well as soiling of the fingers of the operator performing the replacement of the disposal container is reliably excluded.
  • Outlet openings on the lid of the disposal container and ventilation slots on the handle part which makes it easier for the container to be pulled out enable the liquids which have accumulated in the container to evaporate rapidly.
  • FIG. 1 a side view of the disposal container is shown in a sectional view. It essentially exists of two, unmistakably plastic parts which can be snapped together by incisions 33 in the lid 2, namely a trough-shaped base part 1 and a cover 2 covering the base part 1 upwards.
  • the base part 1 serves to hold a material 5 which is absorbent for writing and rinsing liquid, for example cellulose , Fleece, felt, sponge, foam materials or similar media binding the above liquids.
  • the absorbent material can be inserted into the container in the form of a folded strip, as a layering of individual plates or in one piece.
  • a handle 20 adjoins the receiving space for the suction filling, with the aid of which the entire disposal container can be pulled out like a drawer from a side wall 30 of the printer housing.
  • the grip 20 has a recessed grip 18 which is symmetrical with respect to the width of the base part 1.
  • a wall 19 protrudes freely upward in the drawn state of the disposal container, which in the inserted state of the container has a corresponding depression in the side wall 30 of the bottom pan 12 of the printer housing, not shown in the figures is recorded. Despite the pull-out device, this gives the visual impression of a smooth surface structure of the floor pan.
  • the underside of the handle 20 is also adapted to the contour of the floor pan 12. For this reason, this underside has a slope 31.
  • the bevel 31 is provided on both sides of the recessed grip 18 with air inlet openings 21, and the recessed grip itself is provided with ventilation slots 22 on its upper side (FIGS. 2 and 3).
  • the air inlet openings 21 shown and the ventilation slots 22 allow the collected liquids to evaporate in the disposal container and at the same time support the air circulation for cooling the generally also in the floor pan 12 of the printer housing arranged electrical and electronic assemblies, in particular the power supply assembly.
  • a locking lug 10 is provided which interacts with a cutout 11 serving as a locking receptacle in the base trough 12 of the printer housing (FIGS. 1 and 7).
  • this latch 10 lies non-positively in the cutout 11, the underside of the base part 1 serving as a spring element during the pulling or insertion of the container (FIG. 6).
  • two sealing ribs 32 are provided for fastening the cover 2, thereby creating a liquid-tight and space-saving freeforming that lies inwards, ie in the cavity of the container. Lugs 3 of the cover 2 are locked in this free-form formation (FIGS. 4 and 5).
  • extensions 35 of the sealing ribs 32 of the base part 1 and the correspondingly assigned incisions 33 of the cover 2 in the region of the lugs 3 are dimensioned in different lengths (FIGS. 4 and 5). This ensures that the cover 2 is always mounted in the correct position on the bottom part 1.
  • the inlet opening for the loss liquid in the cover 2 is not arranged in the middle with respect to its longitudinal extent and, if the cover 2 is placed incorrectly, the loss liquid supplied by means of one or more flexible hoses 8 would not get into the inlet opening.
  • This inlet opening is formed by a funnel 9, the walls of which extend into the receiving space for the suction filling of the disposal container in a collar-like manner in such a way that the funnel 9 widens in the direction of the receiving space (FIG. 1).
  • the funnel-shaped inlet opening 9 lies below the ends of the flexible hoses 8, which lead to a cleaning and sealing station, not shown here, and which drain away any waste liquids which occur during cleaning and rinsing procedures.
  • cleaning and sealing stations for ink writing devices are well known and described for example in WO 87/04979 and DE 87 14 304.6 U1.
  • the flexible hoses 8 are held in the region of the funnel 9 on a fastening part 7 of the pressure device, so that a permanent position assignment of the hose end / inlet opening is always guaranteed.
  • the free ends of the flexible hoses 8 dip into the mushroom-shaped funnel 9 by the dimension a.
  • the immersion dimension a is determined by the material of the hose 8 (in particular its bending stiffness), the dimensions and the possible operating positions of the container.
  • the inlet opening of the funnel 9 has an oval shape, a hole 29 being provided on each side of the inlet opening and the inclined side walls of the funnel 9 enclosing a free space 28 in the form of a circumferential groove which is required for design reasons.
  • a hole 29 is provided on each side of the oval, through which loss fluid that has entered the free space 28 can flow into the receiving space (FIG. 2).
  • the lid 2 has a plurality of holes 15, which support the evaporation of the collected liquids.
  • the liquid to be picked up can drip directly through the inlet opening into the free space 14 of the funnel 9 and be absorbed by the absorbent filling 5.
  • This consists, for example, of a Strip of absorbent material 5, which is folded several times into a package and inserted into the cavity of the container.
  • a rubber band 6 is provided which holds the individual layers together. Due to the side walls 17 of the funnel 9 projecting into the container, the filling 5 is somewhat compressed in this area.
  • the writing device is pivoted into an assembly or service position about a pivot point denoted by reference numeral 16 in FIG. 7, the tubes 8 scrape off the waste ink 13 at the edge of the funnel and are thus cleaned.
  • the design of the funnel 9 ensures that waste ink 13 or rinsing liquid gets into the disposal container.
  • the sloping, collar-like side walls 17 of the funnel 9 are used.
  • the residual liquid still remaining in the tubes 8 drips inward into the absorbent filling 5 (FIG. 10) due to gravity on the sloping wall 17. If the writing device is pivoted through an angle that is greater than 90 °, for example when transporting or storing the packaged device on the top of the packaging carton, the waste ink 13 runs back in the tubes 8 in the closed ink system and collects therein.
  • FIGS. 8 and 9 show a further embodiment of the mushroom-shaped funnel 9, the funnel 9 with the height b being arranged offset by an angle ⁇ with respect to the pulling direction of the disposal container.
  • the inlet opening according to the type described above, it has a rectangular shape so that for the pivoting of the printer (FIG. 7) the tubes 8 (in this example three tubes) have the same distance c from the edge of the funnel.
  • the geometric dimensions of the inlet opening are determined by the number of hoses 8 or by the distance c).
  • the tubes 8 no longer point perpendicularly to the inlet opening, but are inclined by an angle ⁇ in order to pivot the writing device in order to wipe the waste ink residues 13 on the funnel 9 at each of the tubes 8 at the pivot point identified by the reference number 27 in the assembly position, and in order not to touch the edge of the funnel 9 when pivoting back into the operating position.

Landscapes

  • Ink Jet (AREA)

Abstract

Afin de recueillir l'encre perdue et l'excédent en liquides de nettoyage ou de rinçage dans des systèmes d'impression à l'encre, un récipient susceptible d'être enlevé du boîtier du système d'impression et échangé comprend une masse de remplissage (5) absorbante et un orifice d'admission des déchets liquides en forme d'entonnoir qui permet de recueillir et de conserver lesdit liquides sans aucune salissure, indépendamment de la position (position de fonctionnement, d'entretien ou de transport) du système d'impression.

Claims (10)

  1. Dispositif pour évacuer des liquides perdus (13) dans des imprimantes à encre, qui apparaissent, lors de procédures de nettoyage et de lavage, sous la forme d'encre perdue ou de liquide de lavage et sont évacués par un poste de nettoyage exécutant les opérations de nettoyage et de lavage, à un récipient d'élimination, qui est rempli par une substance (5) absorbant ces liquides et est disposé, de manière à pouvoir être ressorti, dans une cuvette de fond (12) de l'imprimante à encre,
    caractérisé par le fait
    - que le récipient d'élimination possède, sur sa face supérieure (couvercle 2), une ouverture d'admission en forme de trémie (9), qui s'élargit en direction de la substance absorbante (5) et sert à recevoir des liquides perdus (13), et
    - qu'au moins un tuyau flexible (8), qui évacue les liquides perdus (13), pénètre dans l'ouverture d'admission (9).
  2. Dispositif suivant la revendication 1, caractérisé par le fait que l'ouverture d'admission en forme de trémie (9) est entourée par une multiplicité d'ouvertures de sortie (15), qui sont plus petites que cette ouverture d'admission pour retirer les extrémités du tuyau lors du retrait du récipient d'élimination et pour l'évaporation des liquides perdus (13).
  3. Dispositif suivant la revendication 1 ou 2, caractérisé par le fait que le récipient d'élimination est constitué de deux moitiés de boîtier (1,2) pouvant être encliquetées l'une dans l'autre.
  4. Dispositif suivant la revendication 1, caractérisé par le fait que les parois latérales (17) de l'ouverture d'admission en forme de trémie (9) s'étendent à la manière d'un collet dans la cavité du récipient d'élimination et enserrent un espace libre (28) sous la forme d'une rainure circonférentielle.
  5. Dispositif suivant la revendication 4, caractérisé par le fait que l'espace libre (28) possède au moins une ouverture de passage (29) pour des liquides perdus (13), en direction du matériau absorbant (5).
  6. Dispositif suivant la revendication 1, caractérisé par le fait que l'ouverture d'admission en forme de trémie (9) possède un profil de forme rectangulaire et est disposée en étant décalée d'un angle (a) par rapport à la direction de retrait du récipient d'élimination.
  7. Dispositif suivant la revendication 6, caractérisé par le fait que les tuyaux flexibles (8) pénètrent dans l'ouverture d'admission en forme de trémie m(9) en étant inclinées d'un angle (b) par rapport à la surface du récipient d'élimination.
  8. Dispositif suivant la revendication 1, caractérisé par le fait que le matériau absorbant (5) est disposé de manière à être remplaçable dans le récipient d'élimination.
  9. Dispositif suivant la revendication 1, caractérisé par le fait que le matériau absorbant (5) est comprimé dans la zone située au-dessous de l'ouverture d'admission (9).
  10. Dispositif suivant la revendication 1, caractérisé par le fait que le récipient d'élimination (1) possède, à l'état inséré, un élément de préhension (20), qui est intégré dans une paroi latérale (30) de l'imprimante et comportant une cavité de préhension (18) qui comporte des ouvertures (21) d'entrée de l'air et des fentes d'aération (22).
EP90910679A 1989-09-13 1990-06-25 Recipient de collecte de liquides perdus dans des systemes d'impression a l'encre Expired - Lifetime EP0536116B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP89116964 1989-09-13
EP89116964 1989-09-13
PCT/EP1990/001012 WO1991004156A1 (fr) 1989-09-13 1990-06-25 Recipient de collecte de liquides perdus dans des systemes d'impression a l'encre

Publications (2)

Publication Number Publication Date
EP0536116A1 EP0536116A1 (fr) 1993-04-14
EP0536116B1 true EP0536116B1 (fr) 1994-11-17

Family

ID=8201888

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90910679A Expired - Lifetime EP0536116B1 (fr) 1989-09-13 1990-06-25 Recipient de collecte de liquides perdus dans des systemes d'impression a l'encre

Country Status (3)

Country Link
EP (1) EP0536116B1 (fr)
DE (1) DE59007725D1 (fr)
WO (1) WO1991004156A1 (fr)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ATE159685T1 (de) * 1992-12-28 1997-11-15 Canon Kk Tintenstrahlaufzeichnungsgerät
US5831647A (en) * 1995-05-25 1998-11-03 Seiko Epson Corporation Casing structure in an ink jet printer for improved used ink handling
US6132036A (en) * 1995-09-14 2000-10-17 Canon Kabushiki Kaisha Ink tank, production process of ink tank and ink-jet printing apparatus
US6357854B1 (en) * 2000-04-26 2002-03-19 Pitney Bowes Inc. Ink jet printer having waste tank overflow prevention
US6267465B1 (en) * 2000-06-16 2001-07-31 Xerox Corporation Waste ink pad system and method of manufacturing an improved waste pad
JP4168655B2 (ja) 2002-04-24 2008-10-22 ブラザー工業株式会社 廃インク貯蔵装置
JP6417660B2 (ja) * 2013-12-13 2018-11-07 セイコーエプソン株式会社 記録装置
JP6513008B2 (ja) * 2015-09-30 2019-05-15 キヤノン株式会社 液体保持容器

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2610518C3 (de) * 1976-03-12 1983-04-07 Siemens AG, 1000 Berlin und 8000 München Tintenvorratsbehälter für Tintenschreibeinrichtungen
DE3302965A1 (de) * 1983-01-29 1984-08-02 Olympia Werke Ag, 2940 Wilhelmshaven Tintenschreibwerk mit einer aufnahmevorrichtung fuer spueltinte
DE3406865A1 (de) * 1984-02-25 1985-08-29 Olympia Werke Ag, 2940 Wilhelmshaven Tintenschreibwerk mit einer aufnahmevorrichtung fuer spuel- oder lecktinte
JPS6356632U (fr) * 1986-09-30 1988-04-15

Also Published As

Publication number Publication date
WO1991004156A1 (fr) 1991-04-04
EP0536116A1 (fr) 1993-04-14
DE59007725D1 (de) 1994-12-22

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