EP0536116B1 - Disposal container for waste fluid in ink printing devices - Google Patents

Disposal container for waste fluid in ink printing devices 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
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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
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German (de)
French (fr)
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EP0536116A1 (en
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
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Eastman Kodak Co
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Publication date
Application filed by Eastman Kodak Co filed Critical Eastman Kodak Co
Publication of EP0536116A1 publication Critical patent/EP0536116A1/en
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Publication of EP0536116B1 publication Critical patent/EP0536116B1/en
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    • 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—

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.

Abstract

For the disposal of waste ink and superfluous cleaning or rinsing fluid in ink printing devices there is a removable and intechangeable disposal container with an absorbent filling (5), the funnel-shaped inlet aperture (9) of which ensures that the fluids are collected and stored without any contamination, whatever the position of the printing device (position of operation, service or transport).

Description

Die Erfindung betrifft eine Vorrichtung zum Entsorgen von Verlusttinte und von Spülflüssigkeit in einer Tintenschreibeinrichtung gemäß den Merkmalen des Patentanspruches 1.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.

Hochauflösende Schreibköpfe in Tintenschreibeinrichtungen weisen bekanntlich eine Vielzahl von Austrittsdüsen auf, aus denen durch individuelle Ansteuerung von den einzelnen Austrittsdüsen zugeordneten Ansteuerelementen Tintentröpfchen in Richtung auf einen Aufzeichnungsträger ausgestoßen werden. Durch eine Relativbewegung zwischen dem Schreibkopf und dem Aufzeichnungsträger werden dabei während des Schreibvorganges auf dem Aufzeichnungsträger rasterförmig Zeichen oder grafische Muster aufgebaut. Durch die in den Austrittsdüsen im Schreibbetrieb auftretenden Kontraktionsvorgänge versorgt sich ein derartiger Schreibkopf selbsttätig mit Schreibflüssigkeit.As is known, 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. By means of a relative movement between the write head and the record carrier, 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.

Solche Tintenschreibeinrichtungen, die mit Mehrdüsen-Schreibköpfen arbeiten, sind empfindlich gegenüber Umfeld- bzw. Umwelteinflüssen. Ursachen für mögliche Betriebsstörungen sind u.a. Ein- oder Antrocknen der Schreibflüssigkeit, starke Änderung der Viskosität der Schreibflüssigkeit oder Verschmutzungen des Düsenbereiches der Schreibköpfe durch Fremdkörperpartikel, wie z.B. Papierstaub. Bei mit Unterdruck arbeitenden Tintendruckeinrichtungen kann auch eine Störung des konkaven Tintenmeniskus am Düsenende z.B. durch Erschütterung der Druckeinrichtung beim Transport auftreten und zu Störungen und schließlich auch zum Betriebsausfall führen.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. In the case of ink printing devices which operate with negative pressure, 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.

Aufgrund des verwendeten physikalischen Prinzips ist es funktionswesentlich, daß die Schreibflüssigkeit im Versorgungssystem frei von Gas- oder Lufteinschlüssen ist. Bei Inbetriebnahme einer derartigen Tintenschreibeinrichtung oder, wenn der Tintenvorratsbehälter ausgewechselt wird, muß deshalb das gesamte Tintenversorgungssystem mit Tinte gefüllt werden. Zu diesem Zweck ist es aus der DE 26 10 518 C3 bekannt, kurzzeitig den Druck in der Schreibflüssigkeit zu erhöhen und damit das Versorgungssystem und den angeschlossenen Schreibkopf mit Schreibflüssigkeit durchzuspülen. Ein derartiges Durchspülen hat außerdem die Wirkung, daß damit eventuell eingedrungener Schmutz entfernt wird. Um die bei diesem Spülvorgang aus den Austrittsdüsen ausgestoßene Schreibflüssigkeit zu entsorgen, ist ein Teil des als Stützkörper ausgebildeten Tintenvorratsbehälters als Sammelbehälter für diese Verlusttinte ausgeformt. Dieser Sammelbehälter steht mit den Austrittsöffnungen des Schreibkopfes über einen die Verlusttinte ableitenden Kanal in Verbindung, der über eine Einlaßöffnung in den Sammelbehälter mündet. In dem Sammelbehälter befindet sich ein Tampon aus saugfähigem Material, das die Verlusttinte aufnimmt. Ist die im Tintenvorratsbehälter enthaltene Schreibflüssigkeit verbraucht, so wird der Tintenvorratsbehälter mit dem Stützkörper von der Schreibeinrichtung abgezogen. Damit wird gleichzeitig das die Verlusttinte aufsaugende Tampon, das durch den Stützkörper vor Berührung geschützt ist, entfernt. Der gesamte Vorratsbehälter wird anschließend weggeworfen.Due to the physical principle used, it is essential for the function that the writing fluid in the supply system is free of gas or air inclusions. When starting up such an ink writing device or when replacing the ink reservoir, the entire ink supply system must therefore be filled with ink. For this purpose it is known from DE 26 10 518 C3 to briefly increase the pressure in the writing fluid and thus to flush the supply system and the connected writing head with writing fluid. Such flushing also has the effect of removing any dirt that may have entered. In order to dispose of the writing fluid ejected from the outlet nozzles during this rinsing process, 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. There is a tampon made of absorbent material in the collection container, which absorbs the waste ink. When the writing fluid contained in the ink reservoir is used up, the ink reservoir with the support body is removed from the writing device. At the same time, the tampon which absorbs the waste ink and is protected from contact by the support body is removed. The entire storage container is then thrown away.

Zur Aufnahme für Spül- oder Lecktinte ist aus der DE 34 06 865 A1 eine Aufnahmevorrichtung bekannt, die unterhalb des Aufzeichnungsträgers und des bewegbaren Schreibkopfes zwischen den Seitenwänden der Tintenschreibeinrichtung angeordnet ist. Diese besteht aus einem wannenförmig ausgebildeten, allseitig verschlossenen Behälter, der an seiner Oberseite Öffnungen aufweist, durch die gleichzeitig außer Tintendampf auch die Abgase eines Korrosionsschutzmittels entweichen können. Außerdem enthält der Behälter einen faltbaren Folienbeutel mit einem darin angeordneten saugfähigen Material. Zum Austausch dieses saugfähigen Materials ist der Behälter aus einer Stellung unterhalb der Transportwalze für den Aufzeichnungsträger aus der Maschine herausziehbar angeordnet.From DE 34 06 865 A1, a recording device is known 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.

Die Erfindung geht von einer aus der DE 37 32 797 A1 bekannten Vorrichtung zum Entsorgen von Verlustflüssigkeiten aus, bei der bei Reinigungs- und Spülprozeduren auftretende Verlusttinte oder Spülflüssigkeit von einer Reinigungsstation zu einem Entsorgungsbehälter geleitet werden. Der Entsorgungsbehälter enthält ein für die Verlusttinte oder Spülflüssigkeit saugfähiges Material und ist ausziehbar in einer Bodenwande einer Tintenschreibeinrichtung angeordnet. Bei der bekannten Vorrichtung weist der Entsorgungsbehälter in seiner in die Tintenschreibeinrichtung eingeführten Vorderwand einen Ausschnitt auf, durch den hindurch eine Mündung eines Röhrchens für die Rückführung verbrauchter Verlusttinte bzw. Spülflüssigkeit hineinragt. Bei der bekannten Vorrichtung besteht die Gefahr, daß bei entnommenem Entsorgungsbehälter Verlusttinte oder Spülflüssigkeit unkontrolliert in den Aufnahmeraum für den Entsorgungsbehälter bzw. aus dem Gehäuse der Tintenschreibeinrichtung austritt.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. In the known 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. In the known device, there is a risk that, when the disposal container is removed, 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.

Die der Erfindung zugrundeliegende Aufgabe besteht darin, eine Vorrichtung zum Entsorgen der bei Reinigungs- und Spülprozeduren anfallenden Verlustflüssigkeiten bei Tintenschreibeinrichtungen der eingangs genannten Art anzugeben, die bei einfachem Aufbau ein leichtes, völlig verschmutzungsfreies Auswechseln des Entsorgungsbehälters erlaubt sowie eine Verschmutzung von Maschinenteilen innerhalb der Schreibeinrichtung auch in von der normalen Betriebslage abweichenden Service- oder Transportstellung der Schreibeinrichtung zuverlässig verhindert.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.

Diese Aufgabe wird gemäß den Merkmalen des Patentanspruchs 1 gelöst. Weitere Ausgestaltungen und vorteilhafte Weiterbildungen sind in den Unteransprüchen gekennzeichnet.This object is achieved in accordance with the features of patent claim 1. Further refinements and advantageous developments are characterized in the subclaims.

Mit Hilfe eines separaten, von außen ziehbaren Einweg- oder Nachfüllbehälters wird auf sehr einfache und kostengünstige Weise eine Entsorgung von Verlustflüssigkeiten erreicht. Durch die Ausgestaltung der Einlaßöffnung in Form eines pilzförmigen Trichters, dessen schräge Trichterwände sich in Richtung des saugfähigen Materials im Unterteil des Behälters erweitern, wird sichergestellt, daß Reste der Verlustflüssigkeit in allen Betriebslagen der Schreibeinrichtung, wie beispielsweise auch in der durch Verschwenken erreichbaren Montage- oder Transportstellung, immer in den Behälter gelangen. Dadurch ist sowohl jegliche Verschmutzung von Maschinenteilen innerhalb der Schreibeinrichtung als auch ein Beschmutzen der Finger der den Austausch des Entsorgungsbehälters vornehmenden Bedienperson sicher ausgeschlossen.With the help of a separate, disposable or refillable container that can be pulled from the outside, 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. As a result, 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.

Auslaßöffnungen an dem Deckel des Entsorgungsbehälters und Lüftungsschlitze an dem das Ausziehen des Behälters erleichternden Griffteil ermöglichen ein rasches Verdunsten der in dem Behälter angesammelten Flüssigkeiten.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.

Die Erfindung wird im folgenden anhand eines Ausführungsbeispiels erläutert, wozu auf die Zeichnungen verwiesen wird. Dort zeigen

  • Figur 1 einen Entsorgungsbehälter in Einbaulage (Seitenansicht in Schnittdarstellung),
  • Figur 2 den Behälter nach Figur 1 in Draufsicht,
  • Figur 3 eine Vorderansicht des Behälters,
  • Figur 4 ein Detailschnitt der Verbindung Deckel/Bodenteil des Behälters,
  • Figur 5 und Figur 6 schematische Darstellungen des Behälters während des Einschiebens bzw. des Ausziehens aus der Schreibeinrichtung,
  • Figur 7 eine Schnittdarstellung des Behälters von vorne zu Beginn eines Schwenkvorganges in die Servicestellung der Schreibeinrichtung,
  • Figur 8 eine weitere Ausführungsform einer Einzelheit des Behälters,
  • Figur 9 eine Schnittdarstellung des Behälterdetails gemäß Figur 8 und
  • Figur 10 den Entsorgungsbehälter in Transportstellung der Schreibeinrichtung.
The invention is explained below using an exemplary embodiment, for which reference is made to the drawings. Show there
  • FIG. 1 shows a disposal container in the installed position (side view in sectional view),
  • FIG. 2 shows the container according to FIG. 1 in a top view,
  • FIG. 3 shows a front view of the container,
  • FIG. 4 shows a detailed section of the connection between the lid and the bottom part of the container,
  • 5 and FIG. 6 are schematic representations of the container during insertion or removal from the writing device,
  • FIG. 7 shows a sectional view of the container from the front at the start of a pivoting process into the service position of the writing device,
  • FIG. 8 shows a further embodiment of a detail of the container,
  • Figure 9 is a sectional view of the container details according to Figure 8 and
  • Figure 10 shows the disposal container in the transport position of the writing device.

In Figur 1 ist in Schnittdarstellung eine Seitenansicht des Entsorgungsbehälters gezeigt. Er besteht im wesentlichen aus zwei, unverwechselbar durch Einschnitte 33 im Deckel 2 miteinander verschnappbaren Teilen aus Kunststoff, nämlich einem wannenförmigen Bodenteil 1 und einem das Bodenteil 1 nach oben abdeckenden Deckel 2. Das Bodenteil 1 dient zur Aufnahme eines für Schreib- und Spülflüssigkeit saugfähigen Materials 5, beispielsweise Zellstoff, Vlies, Filz, Schwamm, Schaummaterialien oder ähnliche, die obengenannten Flüssigkeiten bindenden Medien. Das Saugmaterial kann dabei in Form eines zusammengefalteten Streifens, als Schichtung einzelner Platten oder auch einstückig in den Behälter eingelegt sein. An einer Stirnseite des Bodenteils 1 schließt sich an den Aufnahmeraum für die Saugfüllung ein Griffstück 20 an, mit dessen Hilfe sich der gesamte Entsorgungsbehälter aus einer Seitenwandung 30 des Druckergehäuses schubladenartig herausziehen läßt. Zum bequemen Ziehen des Entsorgungsbehälters weist das Griffstück 20 eine bezüglich der Breite des Bodenteils 1 symmetrisch liegende Griffmulde 18 auf. An der zur Bedienperson weisenden Außenseite des Griffstückes 20 ist eine im gezogenen Zustand des Entsorgungsbehälters frei nach oben abragende Wand 19 ausgeformt, die im eingeschobenen Zustand des Behälters von einer entsprechenden, in den Figuren nicht näher bezeichneten Vertiefung in der Seitenwand 30 der Bodenwanne 12 des Druckergehäuses aufgenommen wird. Dadurch ergibt sich trotz der ausziehbaren Vorrichtung der optische Eindruck einer glatten Oberflächenstruktur der Bodenwanne.In Figure 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. At one end of the bottom part 1, 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. For conveniently pulling the disposal container, the grip 20 has a recessed grip 18 which is symmetrical with respect to the width of the base part 1. On the outside of the handle 20 facing the operator, 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.

Die Unterseite des Griffstückes 20 ist ebenfalls der Kontur der Bodenwanne 12, angepaßt. Aus diesem Grunde weist diese Unterseite eine Schräge 31 auf. Die Schräge 31 ist beidseitig der Griffmulde 18 mit Lufteintrittsöffnungen 21, die Griffmulde selbst an ihrer Oberseite mit Lüftungsschlitzen 22 versehen (Figur 2 und 3). Die gezeigten Lufteintrittsöffnungen 21 und die Lüftungsschlitze 22 ermöglichen das Verdunsten der gesammelten Flüssigkeiten im Entsorgungsbehälter und unterstützen gleichzeitig die Luftzirkulation für die Kühlung der im allgemeinen ebenfalls in der Bodenwanne 12 des Druckergehäuses angeordneten elektrischen und elektronischen Baugruppen, insbesondere der Stromversorgungsbaugruppe.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.

An der Unterseite des Bodenteils 1 ist im vorderen Bereich, d.h. in der Nähe des Griffteiles 20, eine Rastnase 10 vorgesehen, die mit einem als Rastaufnahme dienenden Ausschnitt 11 in der Bodenwanne 12 des Druckergehäuses zusammenwirkt (Figur 1 und 7). In der Einbaulage des Entsorgungsbehälters liegt diese Rastnase 10 kraftschlüssig im Ausschnitt 11, wobei während des Ziehens bzw. des Einschiebens des Behälters die Unterseite des Bodenteils 1 als Federelement dient (Figur 6).On the underside of the bottom part 1 is in the front area, i.e. in the vicinity of the handle part 20, 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). In the installed position of the disposal container, 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).

An den beiden ebenfalls federnden Seitenwänden 4 des Bodenteils 1 sind jeweils zwei zur Befestigung des Deckels 2 vorgesehene Abdichtrippen 32 ausgeformt, wodurch eine flüssigkeitsdichte und platzsparende, nach innen, also in dem Hohlraum des Behälters liegende Freiformung geschaffen wird. In diese Freiformung werden Nasen 3 des Deckels 2 verrastet (Figur 4 und 5). Um diese beiden Teile unverwechselbar verrasten zu können, sind Verlängerungen 35 der Abdichtrippen 32 des Bodenteils 1 und die entsprechend zugeordneten Einschnitte 33 des Deckels 2 im Bereich der Nasen 3 paarweise verschieden lang dimensioniert (Fig. 4 und 5). Dadurch wird sichergestellt, daß der Deckel 2 immer in der richtigen Lage auf das Bodenteil 1 montiert wird. Dies ist im gezeigten Ausführungsbeispiel von Bedeutung, da die Einlaßöffnung für die Verlustflüssigkeit im Deckel 2 bezüglich seiner Längserstreckung nicht in der Mitte angeordnet ist und bei falschem Auflegen des Deckels 2 die mittels eines oder mehrerer flexiblen Schläuche 8 zugeführte Verlustflüssigkeit nicht in die Einlaßöffnung gelangen würde. Diese Einlaßöffnung wird durch einen Trichter 9 gebildet, dessen Wände sich in den Aufnahmeraum für die Saugfüllung des Entsorgungsbehälters kragenartig in der Weise erstrecken, daß sich der Trichter 9 in Richtung Aufnahmeraum erweitert (Figur 1).On the two also resilient side walls 4 of the base part 1, 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). In order to be able to lock these two parts in an unmistakable manner, 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. This is important in the exemplary embodiment shown, since 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).

Im eingeschobenen Zustand des Behälters liegt die trichterförmige Einlaßöffnung 9 unterhalb der Enden der flexiblen Schläuche 8, die zu einer hier nicht gezeigten Reinigungsund Dichtstation führen und die bei Reinigungs- und Spülprozeduren anfallenden Verlustflüssigkeiten ableiten. Solche Reinigungs- und Dichtstationen für Tintenschreibeinrichtungen sind hinlänglich bekannt und beispielsweise in der WO 87/04979 und DE 87 14 304.6 U1 beschrieben.In the pushed-in state of the container, 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. Such 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.

Die flexiblen Schläuche 8 sind im Bereich des Trichters 9 an einem Befestigungsteil 7 der Druckeinrichtung gehalten, so daß immer eine feste Lagezuordnung Schlauchende/Einlaßöffnung gewährleistet ist. Die freien Enden der flexiblen Schläuche 8 tauchen dabei um das Maß a in den pilzförmigen Trichter 9 ein. Das Eintauchmaß a ist dabei bestimmt durch den Werkstoff des Schlauches 8 (insbesondere seiner Biegesteifigkeit) , die Abmessungen und die möglichen Betriebs-lagen des Behälters.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.

Die Einlaßöffnung des Trichters 9 gemäß diesem Ausführungsbeispiel besitzt eine ovale Form, wobei an jeder Seite der Einlaßöffnung je ein Loch 29 vorgesehen ist und die geneigten Seitenwände des Trichters 9 einen aus formtechnischen Gründen bedingten Freiraum 28 in Form einer umlaufenden Nut einschließen. In diesem Freiraum 28 ist an jeder Seite des Ovals mindestens ein Loch 29 vorgesehen, durch das in den Freiraum 28 gelangte Verlustflüssigkeit in den Aufnahmeraum abfließen kann (Figur 2). Außerdem weist der Deckel 2 eine Vielzahl von Löchern 15 auf, die das Verdunsten der aufgesammelten Flüssigkeiten unterstützen.The inlet opening of the funnel 9 according to this exemplary embodiment 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. In this free space 28, at least one 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). In addition, the lid 2 has a plurality of holes 15, which support the evaporation of the collected liquids.

In der normalen Betriebslage der Druckeinrichtung und bei eingeschobenem Entsorgungsbehälter kann die aufzunehmende Flüssigkeit (Alttinte bzw. Spülflüssigkeit) ungehindert unmittelbar durch die Einlaßöffnung in den Freiraum 14 des Trichters 9 tropfen und von der saugfähigen Füllung 5 aufgenommen werden. Diese besteht beispielsweise aus einem Streifen saugfähigen Materials 5, der zu einem Paket mehrfach gefaltet und in den Hohlraum des Behälters eingelegt wird. Zum leichteren Einlegen der Füllung ist ein Gummiband 6 vorgesehen, das die einzelnen Lagen zusammenhält. Aufgrund der in den Behälter ragenden Seitenwände 17 des Trichters 9 wird die Füllung 5 in diesem Bereich etwas komprimiert.In the normal operating position of the printing device and when the disposal container is pushed in, the liquid to be picked up (waste ink or rinsing liquid) 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. To make it easier to insert the filling, 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.

Beim Einschieben des Behälters in Pfeilrichtung gemäß Figur 5 weichen die flexiblen Schläuche 8 am Deckel 2 aus, gleiten über den gelochten Deckel und schlupfen in den Freiraum 14 des Trichters 9. Zur leichteren Handhabung des Entsorgungsbehälters während des Ein- und Ausziehens weist die Bodenwanne 12 des Druckergehäuses im Bereich der Längsseite des Behälters je ein senkrecht von der Innenseite der Bodenwanne 12 abstehendes Führungselement in Form eines Führungssteges 23 auf. Außerdem sind an den Führungsstegen 23 beiderseits Fanghaken 24 vorgesehen, die mit Führungen 25 des Bodenteils 1 zusammenwirken und den Entsorgungsbehälter beim Einschieben erst zentrieren und im eingeschobenen Zustand lagegenau halten. Eine Anlagerippe 26 an der Bodenwanne 12 im Bereich des Griffteiles 20 begrenzt den Behälter nach oben und dient beim Tragen der Schreibeinrichtung als Gegenlage. Die Einschubtiefe des Behälters wird an der Anlagestelle 34 begrenzt. (Figur 1, 5 und 7).When the container is pushed in in the direction of the arrow according to FIG. 5, the flexible hoses 8 on the cover 2 dodge, slide over the perforated cover and slip into the free space 14 of the funnel 9 Printer housing in the region of the long side of the container each has a guide element projecting perpendicularly from the inside of the floor pan 12 in the form of a guide web 23. In addition, catch hooks 24 are provided on both sides of the guide webs 23, which cooperate with guides 25 of the base part 1 and first center the disposal container when it is inserted and hold it precisely in position when it is inserted. A contact rib 26 on the floor pan 12 in the region of the handle part 20 delimits the container at the top and serves as a counterpart when the writing device is carried. The insertion depth of the container is limited at the contact point 34. (Figure 1, 5 and 7).

Beim Ausziehen des Entsorgungsbehälters (Figur 6) weichen die flexiblen Schläuche 8 am Rand des Trichters 9 aus, streifen beim Gleiten über die Löcher 15 des Deckels 2 den Alttintenrest 13 ab und bleiben nach vollständig ausgezogenem Behälter gesäubert frei hängen. Möglicher Alttintenrest 13, der von den Schlauchenden in den Freiraum 28 abgestreift wird, läuft in der Nut zu den Löchern 29 in den Behälter zurück. Das Säubern und Abstreifen der Schlauchenden wird dabei durch das ständige Auf- und Abbiegen der Schläuche 8 infolge der gelochten Oberfläche des Deckels 2 verstärkt und begünstigt.When the disposal container is pulled out (FIG. 6), the flexible hoses 8 dodge at the edge of the funnel 9, scrape off the waste ink 13 when sliding over the holes 15 in the cover 2 and, after the container has been completely pulled out, remain freely suspended after cleaning. Possible waste ink residue 13, which is stripped from the hose ends into the free space 28, runs back in the groove to the holes 29 in the container. The cleaning and stripping of the hose ends is reinforced and favored by the constant bending and bending of the hoses 8 due to the perforated surface of the cover 2.

Wird die Schreibeinrichtung beispielsweise um einen in der Figur 7 mit dem Bezugszeichen 16 bezeichneten Drehpunkt in eine Montage- oder Servicestellung geschwenkt, so streifen die Schläuche 8 am Trichterrand den Alttintenrest 13 ab und sind damit gesäubert.If, for example, 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.

Auch in einer möglichen Transportstellung der Schreibeinrichtung, bei der das Gerät um 90° gedreht wird, ist durch die Ausbildung des Trichters 9 sichergestellt, daß Alttinte 13 oder Spülflüssigkeit in den Entsorgungsbehälter gelangt. Hierzu dienen die schrägen, kragenartig in den Hohlraum abstehenden Seitenwände 17 des Trichters 9. Die noch in den Schläuchen 8 verbliebene Restflüssigkeit tropft aufgrund der Schwerkraft auf die schräge Wand 17 nach innen in die saugfähige Füllung 5 (Figur 10). Wird die Schreibeinrichtung um einen Winkel geschwenkt, der größer als 90° ist, beispielsweise beim Transportieren oder Lagern des verpackten Gerätes auf der Oberseite des Verpackungskartons, so läuft die Alttinte 13 in den Schläuchen 8 im geschlossenen Tintensystem zurück und sammelt sich darin.Even in a possible transport position of the writing device, in which the device is rotated through 90 °, the design of the funnel 9 ensures that waste ink 13 or rinsing liquid gets into the disposal container. For this purpose, 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.

Die Figuren 8 und 9 zeigen eine weitere Ausführungsform des pilzförmigen Trichters 9, wobei der Trichter 9 mit der Höhe b um einen Winkeln α zur Ziehrichtung des Entsorgungsbehälters versetzt angeordnet ist. Im Gegensatz zu der Einlaßöffnung gemäß der oben beschriebenen Art besitzt diese eine rechteckige Form, damit für das Schwenken des Druckers (Figur 7) die Schläuche 8 (in diesem Beispiel drei Schläuche) den gleichen Abstand c zum Rand des Trichters aufweisen. Die geometrischen Abmessungen der Einlaßöffnung (Maß d und Maß f) bestimmen sich durch die Anzahl der Schläuche 8 bzw. durch den Abstand c). Außerdem zeigen die Schläuche 8 nicht mehr senkrecht auf die Einlaßöffnung, sondern sind um einen Winkel β geneigt, um beim Schwenken der Schreibeinrichtung um den mit dem Bezugszeichen 27 gekennzeichneten Drehpunkt in die Montagestellung die Alttintenreste 13 am Trichter 9 bei jedem der Schläuche 8 abzustreifen und um beim Zurückschwenken in die Betriebslage nicht am Rand des Trichters 9 aufzusetzen.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 α with respect to the pulling direction of the disposal container. In contrast to 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 (dimension d and dimension f) are determined by the number of hoses 8 or by the distance c). In addition, the tubes 8 no longer point perpendicularly to the inlet opening, but are inclined by an angle β 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.

Claims (10)

  1. Device for the removal of waste fluids (13) in ink printers which are produced in cleaning and flushing operations in the form of waste ink or flushing fluid and passed from a cleaning section which executes the cleaning and flushing operations to a disposal container which is filled with an absorbent material (5) for these fluids and located, so that it can be pulled out, within a base section (12) of the ink printer, characterized in that
    - the top side (cover 2) of the disposal container possesses a funnel-shaped inlet aperture (9), which widens out towards the absorbent material (5), for the waste fluids (13) and in that
    - one or more flexible hoses (8) which drain off the waste fluids (13) project into the inlet aperture (9).
  2. Device according to Claim 1, characterized in that the funnel-shaped inlet aperture (9) is surrounded by a multiplicity of outlet apertures (15), which are smaller than this inlet aperture (9), for the purpose of wiping the ends of the hoses when the disposal container is pulled out and for the purpose of evaporation of the waste fluids (13).
  3. Device according to either Claim 1 or Claim 2, characterized in that the disposal container is comprised of two casing halves (1, 2) which latch together.
  4. Device according to Claim 1, characterized in that the side walls (17) of the funnel-shaped inlet aperture (9) extend in the form of a collar into the cavity of the disposal container and enclose a space (28) in the form of a continuous groove.
  5. Device according to Claim 4, characterized in that the space (28) possesses one or more passage apertures (29) for passage of waste fluids (13) to the absorbent material (5).
  6. Device according to Claim 1, characterized in that the funnel-shaped inlet aperture (9) is rectangular in form and is offset by an angle α relative to the direction of withdrawal of the disposal container.
  7. Device according to Claim 6, characterized in that the flexible hoses (8) project into the funnel-shaped inlet aperture (9) inclined by an angle (β) to the surface of the disposal container.
  8. Device according to Claim 1, characterized in that the absorbent material (5) is located in the disposal container and is replaceable.
  9. Device according to Claim 1, characterized in that the absorbent material (5) is compressed in the area below the inlet aperture (9).
  10. Device according to Claim 1, characterized in that when the disposal container (1) is in the inserted position it possesses a gripping piece (20) which is integrated into a side wall (30) of the printer, with a gripping recess (18) which is equipped with air inlet apertures (21) and ventilation slots (22).
EP90910679A 1989-09-13 1990-06-25 Disposal container for waste fluid in ink printing devices Expired - Lifetime EP0536116B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP89116964 1989-09-13
EP89116964 1989-09-13
PCT/EP1990/001012 WO1991004156A1 (en) 1989-09-13 1990-06-25 Disposal container for waste fluid in ink printing devices

Publications (2)

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EP0536116A1 EP0536116A1 (en) 1993-04-14
EP0536116B1 true EP0536116B1 (en) 1994-11-17

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EP (1) EP0536116B1 (en)
DE (1) DE59007725D1 (en)
WO (1) WO1991004156A1 (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2107605T3 (en) * 1992-12-28 1997-12-01 Canon Kk APPARATUS FOR PRINTING INKS OF INK.
DE69619723T2 (en) * 1995-05-25 2002-11-21 Seiko Epson Corp Container for an inkjet printer
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 (en) * 2002-04-24 2008-10-22 ブラザー工業株式会社 Waste ink storage device
JP6417660B2 (en) * 2013-12-13 2018-11-07 セイコーエプソン株式会社 Recording device
JP6513008B2 (en) * 2015-09-30 2019-05-15 キヤノン株式会社 Liquid holding container

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2610518C3 (en) * 1976-03-12 1983-04-07 Siemens AG, 1000 Berlin und 8000 München Ink reservoirs for ink writing devices
DE3302965A1 (en) * 1983-01-29 1984-08-02 Olympia Werke Ag, 2940 Wilhelmshaven Ink-writing unit having a receiving device for flushing ink
DE3406865A1 (en) * 1984-02-25 1985-08-29 Olympia Werke Ag, 2940 Wilhelmshaven Ink jet printing mechanism having a receiving device for rinsing or leaking ink
JPS6356632U (en) * 1986-09-30 1988-04-15

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DE59007725D1 (en) 1994-12-22
EP0536116A1 (en) 1993-04-14
WO1991004156A1 (en) 1991-04-04

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