EP3437883B1 - Ink cartridge for a printer - Google Patents

Ink cartridge for a printer Download PDF

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Publication number
EP3437883B1
EP3437883B1 EP17184328.7A EP17184328A EP3437883B1 EP 3437883 B1 EP3437883 B1 EP 3437883B1 EP 17184328 A EP17184328 A EP 17184328A EP 3437883 B1 EP3437883 B1 EP 3437883B1
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EP
European Patent Office
Prior art keywords
chamber
ink cartridge
ink
cartridge according
profile
Prior art date
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EP17184328.7A
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German (de)
French (fr)
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EP3437883A1 (en
Inventor
Stefan Gierse
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Artech GmbH Design and Production in Plastic
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Artech GmbH Design and Production in Plastic
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Application filed by Artech GmbH Design and Production in Plastic filed Critical Artech GmbH Design and Production in Plastic
Priority to ES17184328T priority Critical patent/ES2790125T3/en
Priority to EP17184328.7A priority patent/EP3437883B1/en
Publication of EP3437883A1 publication Critical patent/EP3437883A1/en
Application granted granted Critical
Publication of EP3437883B1 publication Critical patent/EP3437883B1/en
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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
    • B41J2/175—Ink supply systems ; Circuit parts therefor
    • B41J2/17503—Ink cartridges
    • B41J2/17556—Means for regulating the pressure in the cartridge

Definitions

  • the present invention relates to an ink cartridge for a printer, having a first chamber, having an inlet structure for supplying ambient air into the first chamber, having a second chamber for storing ink and having a connecting structure for supplying ambient air supplied from the first chamber to the second Chamber.
  • an ink cartridge which consists of a shell, an ink supply chamber and an ink supply chamber.
  • the capillary body used requires a great deal of effort in production and assembly. So blunt cutting tools can lead to the end-side deformation of capillaries when assembling the capillary body. The resulting negative pressure level is influenced by the deformed capillaries. Furthermore, the capillary body must be positioned in a housing so that it functions reliably and securely. Slipping or deformation of the capillary body during assembly can influence the level of negative pressure that occurs.
  • the invention is based on the technical problem of specifying an ink cartridge for a printer which does not have the disadvantages described above or at least to a lesser extent and in particular enables a uniform removal of ink at a substantially constant vacuum level.
  • the invention relates to an ink cartridge for a printer, with a first chamber, with an inlet structure for supplying ambient air into the first chamber, with a second chamber for storing ink and with a connecting structure for supplying ambient air supplied from the first chamber to the second chamber.
  • the first chamber is set up for storing a free-flowing bubble formation liquid and the inlet structure has at least one channel which is set up for introducing ambient air into the free-flowing bubble formation liquid to be stored.
  • the channel also has a cantilevered end portion that projects into the first chamber.
  • the channel is set up for introducing ambient air into the free-flowing bubble formation liquid to be stored in the first chamber, foam formation and associated pressure fluctuations in the area of the ink can be avoided in the printing operation, since bubble formation takes place in the first chamber , Ink can be removed evenly by a printer at a substantially constant vacuum level. Furthermore, the air supply via the bubble-forming liquid prevents drying ink from clogging an air inlet and possibly clogging it. Assembly and manufacture is simplified compared to solutions with capillary elements.
  • free-flowing bubble-forming liquid is a liquid that is not absorbed by a capillary element, such as a sponge or the like.
  • no capillary element such as a sponge or the like, is arranged within the first chamber and is designed to receive the bubble formation liquid to be stored in the first chamber.
  • the channel has an opening into the first chamber, which is formed flush with an essentially planar wall of the first chamber surrounding the opening.
  • the channel has a projecting end section which projects into the first chamber. Release bubbles formed in the area of the cantilevered end section settles faster and there is a finer bubble formation with bubbles of smaller diameter.
  • the projecting web can be a narrow, thin-walled web whose wall thickness measured transversely to a direction of flow is smaller than a clear width of a flow cross section of the channel in the region of the projecting end section.
  • the channel has a local constriction.
  • the flow cross-section formed in the area of the local constriction influences the resulting vacuum level. Due to the dimensioning of the local constriction, a vacuum level within the ink cartridge can therefore be set.
  • the local constriction can be formed in the projecting end section in order to prevent or keep back flow of bubble formation liquid from the first chamber into the channel or to keep it low.
  • a flow cross section of the local constriction can be limited by a web projecting into the channel. In this way, the flow cross section can be dimensioned in the region of the constriction in a simple manner.
  • the local constriction has a profile formed on the housing and the web is formed on a cover closing the housing, the profile and the web limiting the flow cross section of the local constriction.
  • the web can protrude into a profile cross-section to form the local constriction.
  • the profile can have a U-shaped cross section and the web can have an essentially rectangular cross section, which is bordered on two sides by profile legs of the U-shaped profile cross section.
  • the free flow cross-section in the area of the local constriction can be defined by the height of the web projecting into the U-profile.
  • the local constriction can have a slot, e.g. is limited by a U-profile. In this way, the flow cross-section can be dimensioned in the region of the constriction in a simple manner.
  • a slot and / or web can be produced reliably and inexpensively while adhering to narrow manufacturing tolerances.
  • the channel has a profile formed on the housing, which is covered by a shaped element formed on the cover, the profile and the shaped element delimiting a channel cross section.
  • a channel cross section closed on the circumference can thus be formed in a cost-effective manner.
  • the ink cartridge can have a housing which is closed with a lid.
  • the cover and the housing can be welded together.
  • the lid and the housing can be made of a thermoplastic, in particular by an injection molding process or the like.
  • the channel can run at least in sections meandering. A large channel length can thus be achieved on a comparatively small base area in order to prevent leakage from to avoid the first chamber to be stored with bubble formation liquid and to set a flow rate of incoming ambient air.
  • a third chamber is provided between the first chamber and the second chamber, the third chamber being part of the connecting structure.
  • the third chamber is particularly arranged to prevent mixing of bubble liquid with ink in the first chamber and the second chamber.
  • the bubble formation liquid is accommodated in the first chamber, that ink is contained in the second chamber and that a gas-filled intermediate volume is formed between the liquids, the bubble formation liquid delimiting the intermediate volume from the inlet structure and wherein in the intermediate volume has a negative pressure relative to an environment.
  • a liquid stored in the first chamber in cooperation with the inlet structure, forms a differential pressure valve in order to generate or maintain a defined negative pressure within the ink cartridge.
  • the bubbling liquid stored in the first chamber may have a higher surface tension than the ink stored in the second chamber.
  • the bubble formation liquid accommodated in the first chamber can be, for example, glycerol.
  • the inlet structure and / or the connection structure can have at least one semipermeable membrane.
  • the membrane can be set up to allow an air flow to pass through at the same time being impermeable to a liquid to be stored in the first chamber and / or to ink to be stored in the second chamber.
  • This can be a membrane, for example, as used in breathable, rainproof outdoor clothing.
  • FIGS. 1 to 10 show an ink cartridge 2 for a printer, with a first chamber 4, with an inlet structure 6 for supplying ambient air from an environment U into the first chamber 4, with a second chamber 8 for supplying ink 10 and with a connecting structure 12 for supplying ambient air supplied to the first chamber 4 into the second chamber 8.
  • the first chamber 4 is set up to store a free-flowing bubble-forming liquid 14 and the inlet structure 6 has at least one channel 16 which is set up to introduce ambient air into the free-flowing bubble-forming liquid 14 to be stored.
  • the bubble-forming liquid 14 is received in the first chamber 4.
  • the ink 10 is received in the second chamber 8.
  • the bubble formation liquid 14 stored in the first chamber 4 has a higher surface tension than the ink 10 stored in the second chamber 8.
  • the bubble formation liquid 14 received in the first chamber 4 is glycerol.
  • no capillary element such as a sponge or the like, is arranged within the first chamber 4 and is designed to receive the bubble formation liquid 14 to be stored in the first chamber 4.
  • the channel 16 of the inlet structure 6 has a projecting end section 18 which projects into the first chamber 4.
  • the projecting end section 18 is a narrow, thin-walled web 18, whose wall thickness d measured transversely to a flow direction S is smaller than a clear width w of a flow cross section of the channel in the region of the projecting end section 18.
  • the channel 16 has a local constriction 20.
  • a flow cross-section 22 formed in the region of the local constriction 20 influences the vacuum level that is established.
  • the channel 16 is meandering.
  • the local constriction 20 is formed in the projecting end section 18.
  • the local constriction 20 has a slot 24 into which a web 26 projects.
  • the ink cartridge 2 has a housing 28 which is closed with a cover 30.
  • the cover 30 and the housing 28 are welded together.
  • the cover 30 and the housing 28 are made of a thermoplastic.
  • Fig. 3 shows the cover 30 and the housing 28 separately.
  • the local constriction 20 has a profile 32 formed on the housing 28.
  • the web 26 is formed on the cover 30 closing the housing 28, the profile 32 and the web 26 delimiting the flow cross section 22 of the local constriction 20.
  • the web 26 projects into the profile 32 in order to form the local constriction 20.
  • the profile 32 has a U-shaped cross section.
  • the web 26 has a substantially rectangular cross section.
  • the web 26 is bordered on both sides by profile legs 34 of the U-shaped profile cross section.
  • the free flow cross-section 22 in the area of the local constriction 20 can be defined by a height h of the web 26 projecting into the U-profile 32.
  • the profile 32 also forms the channel 16 in which the local constriction 20 is formed.
  • the profile 32 is covered by a shaped element 36 formed on the cover 30, the profile 32 and the shaped element 36 delimiting a channel cross section which is larger than the free flow cross section 22 of the constriction 20.
  • the channel cross section is through the profile 32 and the shaped element 36 completely encircled or closed on the circumference, so that an inflowing air stream must flow completely through the channel 16 along its meandering shape in order to enter the chamber 4.
  • a third chamber 40 is provided between the first chamber 4 and the second chamber 8, the third chamber 40 being part of the connecting structure 12.
  • the third chamber 40 is arranged to prevent mixing of bubble formation liquid 14 with ink 10 in the first chamber 4 and the second chamber 8.
  • a gas-filled intermediate volume is formed between the liquids 14, 10, the bubble-forming liquid 14 delimiting the intermediate volume from the inlet structure 6, and a negative pressure being present in the intermediate volume relative to an environment U.
  • the intermediate volume therefore comprises the gas volumes of the chambers 4, 8 and 40.
  • ink 10 is withdrawn from the chamber 8 via an ink outlet 42 from the ink cartridge 2.
  • the ink removal causes an inflow of ambient air into the ink cartridge 2.
  • the arrows with the label L, a describe the inflow of ambient air into the ink cartridge 2 due to the ink removal.
  • the air is guided to the channel 16 via an inlet opening 44 of the inlet structure 6, the air passing through a first air-permeable, liquid-impermeable membrane 45.
  • the air flows further along the meandering channel 16 to the projecting end section 18 and thereby passes the local constriction 20, in the area of which the channel cross section is reduced to the flow cross section 22 in the manner of a throttle.
  • the air flows into the bubble formation liquid 14 and forms small air bubbles 46 which rise in the direction of the surface 49 of the bubble formation liquid 14.
  • the air flows into the chamber 40 via a connection opening 48. From the chamber 40, the air flows through through openings 50 and a second membrane 52 into the chamber 8. The air is passed through the through openings 50 along an outside of the cartridge 2 guided, the outside area of the through openings 50 and an inflow channel 54 being spanned by a film 56 ( Fig. 7 ). In Fig. 6 the film 56 is hidden to illustrate the air flow along the outside from the through openings towards the inflow channel 54.
  • the inflowing ambient air reaches the chamber 8.
  • the negative pressure in the chamber 8 which initially increases due to the ink removal, is adjusted to the intended negative pressure level by the inflow of the ambient air.

Landscapes

  • Ink Jet (AREA)

Description

Die vorliegende Erfindung betrifft eine Tintenkartusche für einen Drucker, mit einer ersten Kammer, mit einer Einlassstruktur zum Zuführen von Umgebungsluft in die erste Kammer, mit einer zweiten Kammer zur Bevorratung von Tinte und mit einer Verbindungsstruktur zum Zuführen von der ersten Kammer zugeführter Umgebungsluft in die zweite Kammer.The present invention relates to an ink cartridge for a printer, having a first chamber, having an inlet structure for supplying ambient air into the first chamber, having a second chamber for storing ink and having a connecting structure for supplying ambient air supplied from the first chamber to the second Chamber.

Aus dem Dokument EP 1 535 743 A1 ist eine Tintenkartusche vorbekannt, die aus einer Hülle, einer Tintenversorgungskammer und einer Tintenvorratskammer besteht.From the document EP 1 535 743 A1 an ink cartridge is known, which consists of a shell, an ink supply chamber and an ink supply chamber.

Dokument WO 2011/147240 A1 beschreibt eine Tintenkartusche mit einem Hauptkörper und einem Deckel.document WO 2011/147240 A1 describes an ink cartridge with a main body and a lid.

Innerhalb einer Tintenkartusche für einen Drucker herrscht üblicherweise ein Unterdruck, damit bevorratete Tinte nicht unkontrolliert aus der Tintenkartusche austritt. Um eine gleichmäßige, vom Füllstand unabhängige Entnahme von Tinte durch einen Drucker zu ermöglichen, sollte das Unterdruckniveau innerhalb der Kartusche möglichst konstant gehalten werden. Hierzu strömt bei einer Tintenentnahme über ein Differenzdruckventil Umgebungsluft in die Kartusche, wie z.B. in DE 20 2009 001 744 U1 beschrieben.There is usually a negative pressure inside an ink cartridge for a printer, so that stored ink does not escape from the ink cartridge in an uncontrolled manner. The vacuum level inside the cartridge should be kept as constant as possible so that ink can be removed evenly by a printer regardless of the fill level. For this purpose, ambient air flows into the cartridge, such as in DE 20 2009 001 744 U1 described.

Bei der in DE 20 2009 001 744 U1 beschriebenen Lösung strömt Umgebungsluft über einen mit einer Sekundärflüssigkeit getränkten Kapillarkörper in einen Innenraum der Tintenkartusche. Dabei findet im Bereich der innerhalb des Kapillarkörpers gehaltenen Sekundärflüssigkeit eine Blasenbildung statt.At the in DE 20 2009 001 744 U1 Described solution flows ambient air through a capillary body soaked with a secondary liquid into an interior of the ink cartridge. Bubbles form in the area of the secondary liquid held within the capillary body.

Der verwendete Kapillarkörper erfordert jedoch einen hohen Aufwand in Fertigung und Montage. So können stumpfe Schneidwerkzeuge beim Konfektionieren des Kapillarkörpers zur endseitigen Deformation von Kapillaren führen. Das sich einstellende Unterdruckniveau wird durch die deformierten Kapillaren beeinflusst. Weiter muss der Kapillarkörper passgenau und lagesicher in einem Gehäuse positioniert werden, um zuverlässig zu funktionieren. Ein Verrutschen oder auch eine Deformation des Kapillarkörpers bei der Montage können das sich einstellende Unterdruckniveau beeinflussen.The capillary body used, however, requires a great deal of effort in production and assembly. So blunt cutting tools can lead to the end-side deformation of capillaries when assembling the capillary body. The resulting negative pressure level is influenced by the deformed capillaries. Furthermore, the capillary body must be positioned in a housing so that it functions reliably and securely. Slipping or deformation of the capillary body during assembly can influence the level of negative pressure that occurs.

Der Erfindung liegt die technische Problemstellung zugrunde, eine Tintenkartusche für einen Drucker anzugeben, welche die voranstehend beschriebenen Nachteile nicht oder zumindest in geringerem Maße aufweist und insbesondere eine gleichmäßige Entnahme von Tinte bei einem im Wesentlichen konstanten Unterdruckniveau ermöglicht.The invention is based on the technical problem of specifying an ink cartridge for a printer which does not have the disadvantages described above or at least to a lesser extent and in particular enables a uniform removal of ink at a substantially constant vacuum level.

Die voranstehend beschriebene technische Problemstellung wird gelöst durch eine Tintenkartusche nach Anspruch 1. Weitere Ausgestaltungen der Erfindung ergeben sich aus den abhängigen Ansprüchen und der nachstehenden Beschreibung.The technical problem described above is solved by an ink cartridge according to claim 1. Further developments of the invention result from the dependent claims and the description below.

Gemäß einem ersten Aspekt betrifft die Erfindung eine Tintenkartusche für einen Drucker, mit einer ersten Kammer, mit einer Einlassstruktur zum Zuführen von Umgebungsluft in die erste Kammer, mit einer zweiten Kammer zur Bevorratung von Tinte und mit einer Verbindungsstruktur zum Zuführen von der ersten Kammer zugeführter Umgebungsluft in die zweite Kammer. Die erste Kammer ist zur Bevorratung einer frei fließenden Blasenbildungs-Flüssigkeit eingerichtet und die Einlassstruktur hat wenigstens einen Kanal, der zum Einleiten von Umgebungsluft in die zu bevorratende, frei fließende Blasenbildungs-Flüssigkeit eingerichtet ist. Der Kanal weist weiterhin einen auskragenden Endabschnitt auf, der in die erste Kammer ragt.According to a first aspect, the invention relates to an ink cartridge for a printer, with a first chamber, with an inlet structure for supplying ambient air into the first chamber, with a second chamber for storing ink and with a connecting structure for supplying ambient air supplied from the first chamber to the second chamber. The first chamber is set up for storing a free-flowing bubble formation liquid and the inlet structure has at least one channel which is set up for introducing ambient air into the free-flowing bubble formation liquid to be stored. The channel also has a cantilevered end portion that projects into the first chamber.

Dadurch, dass der Kanal zum Einleiten von Umgebungsluft in die in der ersten Kammer zu bevorratende, frei fließende Blasenbildungs-Flüssigkeit eingerichtet ist, können im Druckbetrieb eine Schaumbildung und damit verbundene Druckschwankungen im Bereich der Tinte vermieden werden, da eine Blasenbildung in der ersten Kammer stattfindet. Es kann eine gleichmäßige Entnahme von Tinte bei einem im Wesentlichen gleichbleibenden Unterdruckniveau durch einen Drucker erfolgen. Weiter kann durch die Luftzufuhr über die Blasenbildungs-Flüssigkeit vermieden werden, dass eintrocknende Tinte einen Lufteinlass zusetzt und ggf. verstopft. Die Montage und Herstellung ist im Vergleich zu Lösungen mit Kapillarelementen vereinfacht.Because the channel is set up for introducing ambient air into the free-flowing bubble formation liquid to be stored in the first chamber, foam formation and associated pressure fluctuations in the area of the ink can be avoided in the printing operation, since bubble formation takes place in the first chamber , Ink can be removed evenly by a printer at a substantially constant vacuum level. Furthermore, the air supply via the bubble-forming liquid prevents drying ink from clogging an air inlet and possibly clogging it. Assembly and manufacture is simplified compared to solutions with capillary elements.

Wenn vorliegend von einer "frei fließenden Blasenbildungs-Flüssigkeit" gesprochen wird, so handelt es sich dabei um eine Flüssigkeit, die nicht durch ein Kapillarelement, wie einen Schwamm oder dergleichen, aufgenommen ist. Innerhalb der ersten Kammer ist insbesondere kein Kapillarelement, wie ein Schwamm oder dergleichen, angeordnet, der dazu eingerichtet ist, die in der ersten Kammer zu bevorratende Blasenbildungs-Flüssigkeit aufzunehmen.When the term "free-flowing bubble-forming liquid" is used here, it is a liquid that is not absorbed by a capillary element, such as a sponge or the like. In particular, no capillary element, such as a sponge or the like, is arranged within the first chamber and is designed to receive the bubble formation liquid to be stored in the first chamber.

Grundsätzlich kann vorgesehen sein, dass der Kanal eine Mündung in die erste Kammer aufweist, die bündig zu einer die Mündung umgebenden, im Wesentlichen planen Wandung der ersten Kammer gebildet ist. Hierbei kann es jedoch beim Zuströmen von Umgebungsluft in die Blasenbildungs-Flüssigkeit zu einem Anhaften von Blasen an der Wandung kommen, so dass vergleichsweise große Blasen gebildet werden, die Druckschwankungen verursachen können. Um kleinere Blasen zu bilden, ist gemäß der Erfindung vorgesehen, dass der Kanal einen auskragenden Endabschnitt hat, der in die erste Kammer ragt. Im Bereich des auskragenden Endabschnitts gebildete Blasen lösen sich schneller ab und es kommt zu einer feineren Blasenbildung mit Bläschen geringeren Durchmessers.In principle, it can be provided that the channel has an opening into the first chamber, which is formed flush with an essentially planar wall of the first chamber surrounding the opening. However, when ambient air flows into the bubble-forming liquid, bubbles can adhere to the wall, so that comparatively large bubbles are formed, which can cause pressure fluctuations. In order to form smaller bubbles, it is provided according to the invention that the channel has a projecting end section which projects into the first chamber. Release bubbles formed in the area of the cantilevered end section settles faster and there is a finer bubble formation with bubbles of smaller diameter.

Bei dem auskragenden Steg kann es sich um einen schmalen, dünnwandigen Steg handeln, dessen quer zu einer Strömungsrichtung gemessene Wanddicke kleiner ist, als eine lichte Weite eines Strömungsquerschnitts des Kanals im Bereich des auskragenden Endabschnitts.The projecting web can be a narrow, thin-walled web whose wall thickness measured transversely to a direction of flow is smaller than a clear width of a flow cross section of the channel in the region of the projecting end section.

Es kann vorgesehen sein, dass der Kanal eine lokale Verengung hat. Der im Bereich der lokalen Verengung gebildete Strömungsquerschnitt beeinflusst das sich einstellende Unterdruckniveau. Durch die Dimensionierung der lokalen Verengung kann daher ein Unterdruckniveau innerhalb der Tintenkartusche eingestellt werden.It can be provided that the channel has a local constriction. The flow cross-section formed in the area of the local constriction influences the resulting vacuum level. Due to the dimensioning of the local constriction, a vacuum level within the ink cartridge can therefore be set.

Die lokale Verengung kann in dem auskragenden Endabschnitt gebildet sein, um einen Rückstrom von Blasenbildungs-Flüssigkeit aus der ersten Kammer in den Kanal zu vermeiden bzw. gering zu halten.The local constriction can be formed in the projecting end section in order to prevent or keep back flow of bubble formation liquid from the first chamber into the channel or to keep it low.

Ein Strömungsquerschnitt der lokalen Verengung kann durch einen in den Kanal ragenden Steg begrenzt sein. So kann auf einfache Weise eine Dimensionierung des Strömungsquerschnitts im Bereich der Verengung erfolgen.A flow cross section of the local constriction can be limited by a web projecting into the channel. In this way, the flow cross section can be dimensioned in the region of the constriction in a simple manner.

Es kann vorgesehen sein, dass die lokale Verengung ein an dem Gehäuse gebildetes Profil aufweist und der Steg an einem das Gehäuse verschließenden Deckel gebildet ist, wobei das Profil und der Steg den Strömungsquerschnitt der lokalen Verengung begrenzen. So kann z.B. der Steg in einen Profilquerschnitt ragen, um die lokale Verengung zu bilden. Durch das Zusammensetzen von Gehäuse und Deckel kann damit ein einfacher Weise eine Kapillare gebildet werden.It can be provided that the local constriction has a profile formed on the housing and the web is formed on a cover closing the housing, the profile and the web limiting the flow cross section of the local constriction. For example, the web can protrude into a profile cross-section to form the local constriction. By assembling the housing and cover, a capillary can be easily formed.

Beispielsweise kann das Profil einen U-förmigen Querschnitt haben und der Steg einen im Wesentlichen rechteckigen Querschnitt haben, der zweiseitig von Profilschenkeln des U-förmigen Profilquerschnitts eingefasst ist. Durch die Höhe des in das U-Profil ragenden Stegs kann der freibleibende Strömungsquerschnitt im Bereich der lokalen Verengung definiert werden.For example, the profile can have a U-shaped cross section and the web can have an essentially rectangular cross section, which is bordered on two sides by profile legs of the U-shaped profile cross section. The free flow cross-section in the area of the local constriction can be defined by the height of the web projecting into the U-profile.

Die lokale Verengung kann einen Schlitz aufweisen, der z.B. durch ein U-Profil begrenzt ist. So kann auf einfacher Weise eine Dimensionierung des Strömungsquerschnitts im Bereich der Verengung erfolgen.The local constriction can have a slot, e.g. is limited by a U-profile. In this way, the flow cross-section can be dimensioned in the region of the constriction in a simple manner.

Ein Schlitz und/oder Steg können zuverlässig und kostengünstig unter Einhaltungen enger Fertigungstoleranzen hergestellt werden.A slot and / or web can be produced reliably and inexpensively while adhering to narrow manufacturing tolerances.

Gemäß einer weiteren Ausgestaltung ist vorgesehen, dass der Kanal ein an dem Gehäuse gebildetes Profil aufweist, das von einem an dem Deckel gebildeten Formelement bedeckt ist, wobei das Profil und das Formelement einen Kanalquerschnitt begrenzen. Damit kann in kostengünstiger Weise ein umfangsseitig geschlossener Kanalquerschnitt gebildet werden.According to a further embodiment, it is provided that the channel has a profile formed on the housing, which is covered by a shaped element formed on the cover, the profile and the shaped element delimiting a channel cross section. A channel cross section closed on the circumference can thus be formed in a cost-effective manner.

Die Tintenkartusche kann ein Gehäuse haben, das mit einem Deckel versschlossen ist.The ink cartridge can have a housing which is closed with a lid.

Der Deckel und das Gehäuse können miteinander verschweißt sein.The cover and the housing can be welded together.

Der Deckel und das Gehäuse können aus einem thermoplastischen Kunststoff hergestellt sein, insbesondere durch ein Spritzgussverfahren oder dergleichen.The lid and the housing can be made of a thermoplastic, in particular by an injection molding process or the like.

Der Kanal kann zumindest abschnittsweise mäanderförmig verlaufen. Damit kann auf einer vergleichsweise geringen Grundfläche eine große Kanallänge erreicht werden, um ein Austreten von in der ersten Kammer zu bevorratender Blasenbildungs-Flüssigkeit zu vermeiden und eine Strömungsgeschwindigkeit von zuströmender Umgebungsluft einzustellen.The channel can run at least in sections meandering. A large channel length can thus be achieved on a comparatively small base area in order to prevent leakage from to avoid the first chamber to be stored with bubble formation liquid and to set a flow rate of incoming ambient air.

Gemäß einer weiteren Ausgestaltung ist zwischen der ersten Kammer und der zweiten Kammer eine dritte Kammer vorgesehen, wobei die dritte Kammer ein Teil der Verbindungsstruktur ist. Die dritte Kammer ist insbesondere dazu eingerichtet, ein Vermischen von Blasenbildungs-Flüssigkeit mit Tinte in der ersten Kammer und der zweiten Kammer zu verhindern.According to a further embodiment, a third chamber is provided between the first chamber and the second chamber, the third chamber being part of the connecting structure. The third chamber is particularly arranged to prevent mixing of bubble liquid with ink in the first chamber and the second chamber.

Es kann vorgesehen sein, dass in der ersten Kammer die Blasenbildungs-Flüssigkeit aufgenommen ist, dass in der zweiten Kammer Tinte aufgenommen ist und dass zwischen den Flüssigkeiten ein gasgefülltes Zwischenvolumen gebildet ist, wobei die Blasenbildungs-Flüssigkeit das Zwischenvolumen gegenüber der Einlassstruktur abgrenzt und wobei in dem Zwischenvolumen relativ zu einer Umgebung ein Unterdruck vorliegt.It can be provided that the bubble formation liquid is accommodated in the first chamber, that ink is contained in the second chamber and that a gas-filled intermediate volume is formed between the liquids, the bubble formation liquid delimiting the intermediate volume from the inlet structure and wherein in the intermediate volume has a negative pressure relative to an environment.

Insbesondere bildet eine in der ersten Kammer bevorrate Flüssigkeit im Zusammenwirken mit der Einlassstruktur ein Differenzdruckventil, um einen definierten Unterdruck innerhalb der Tintenkartusche zu erzeugen bzw. aufrechtzuerhalten.In particular, a liquid stored in the first chamber, in cooperation with the inlet structure, forms a differential pressure valve in order to generate or maintain a defined negative pressure within the ink cartridge.

Die in der ersten Kammer bevorratete Blasenbildungs-Flüssigkeit kann eine höhere Oberflächenspannung aufweisen, als die in der zweiten Kammer bevorratete Tinte.The bubbling liquid stored in the first chamber may have a higher surface tension than the ink stored in the second chamber.

Bei der in der ersten Kammer aufgenommenen Blasenbildungs-Flüssigkeit kann es sich beispielsweise um Glycerin handeln.The bubble formation liquid accommodated in the first chamber can be, for example, glycerol.

Die Einlassstruktur und/oder die Verbindungsstruktur können wenigstens eine semipermeable Membran aufweisen. Die Membran kann dazu eingerichtet sein, einen Luftstrom passieren zu lassen und gleichzeitig undurchlässig für eine in der ersten Kammer zu bevorratende Flüssigkeit und/oder in der zweiten Kammer zu bevorratende Tinte zu sein. Hierbei kann es sich beispielsweise um eine Membran handeln, wie sie in atmungsaktiver, regenfester Outdoorbekleidung eingesetzt wird.The inlet structure and / or the connection structure can have at least one semipermeable membrane. The membrane can be set up to allow an air flow to pass through at the same time being impermeable to a liquid to be stored in the first chamber and / or to ink to be stored in the second chamber. This can be a membrane, for example, as used in breathable, rainproof outdoor clothing.

Nachfolgend wird die Erfindung anhand einer Ausführungsbeispiele darstellenden Zeichnung näher beschrieben. Es zeigen:

Fig. 1
eine erfindungsgemäße Tintenkartusche in einer perspektivischen Ansicht von rechts;
Fig. 2
die Tintenkartusche aus Fig. 1 in einer perspektivischen Ansicht von links;
Fig. 3
Gehäuse und Deckel der Tintenkartusche aus Fig. 1;
Fig. 4
das Gehäuse der Tintenkartusche aus Fig. 1 ohne Deckel in einer Seitenansicht;
Fig. 5
eine Ausschnittvergrößerung der Fig. 4;
Fig. 6
eine Ausschnittvergrößerung der Fig. 3;
Fig. 7
die Tintenkartusche aus Fig. 1 in einer perspektivischen Ansicht von links, mit Folie;
Fig. 8
die Tintenkartusche aus Fig. 1 in einer perspektivischen Ansicht von links ohne Folie;
Fig. 9
eine schematische Darstellung der Verengung;
Fig. 10
eine schematische Darstellung der Tintenkartusche.
The invention is described in more detail below with the aid of a drawing showing exemplary embodiments. Show it:
Fig. 1
an ink cartridge according to the invention in a perspective view from the right;
Fig. 2
the ink cartridge Fig. 1 in a perspective view from the left;
Fig. 3
Housing and cover of the ink cartridge Fig. 1 ;
Fig. 4
the housing of the ink cartridge Fig. 1 without lid in a side view;
Fig. 5
an enlargement of the Fig. 4 ;
Fig. 6
an enlargement of the Fig. 3 ;
Fig. 7
the ink cartridge Fig. 1 in a perspective view from the left, with film;
Fig. 8
the ink cartridge Fig. 1 in a perspective view from the left without film;
Fig. 9
a schematic representation of the narrowing;
Fig. 10
a schematic representation of the ink cartridge.

Die Figuren 1 bis 10 zeigen eine Tintenkartusche 2 für einen Drucker, mit einer ersten Kammer 4, mit einer Einlassstruktur 6 zum Zuführen von Umgebungsluft aus einer Umgebung U in die erste Kammer 4, mit einer zweiten Kammer 8 zur Bevorratung von Tinte 10 und mit einer Verbindungsstruktur 12 zum Zuführen von der ersten Kammer 4 zugeführter Umgebungsluft in die zweite Kammer 8.The Figures 1 to 10 show an ink cartridge 2 for a printer, with a first chamber 4, with an inlet structure 6 for supplying ambient air from an environment U into the first chamber 4, with a second chamber 8 for supplying ink 10 and with a connecting structure 12 for supplying ambient air supplied to the first chamber 4 into the second chamber 8.

Die erste Kammer 4 ist zur Bevorratung einer frei fließenden Blasenbildungs-Flüssigkeit 14 eingerichtet und die Einlassstruktur 6 hat wenigstens einen Kanal 16, der zum Einleiten von Umgebungsluft in die zu bevorratende, frei fließende Blasenbildungs-Flüssigkeit 14 eingerichtet ist.The first chamber 4 is set up to store a free-flowing bubble-forming liquid 14 and the inlet structure 6 has at least one channel 16 which is set up to introduce ambient air into the free-flowing bubble-forming liquid 14 to be stored.

In der ersten Kammer 4 ist vorliegend die Blasenbildungs-Flüssigkeit 14 aufgenommen. In der zweiten Kammer 8 ist vorliegend die Tinte 10 aufgenommen.In the present case, the bubble-forming liquid 14 is received in the first chamber 4. In the present case, the ink 10 is received in the second chamber 8.

Die in der ersten Kammer 4 bevorratete Blasenbildungs-Flüssigkeit 14 bildet im Zusammenwirken mit der Einlassstruktur 6 ein Differenzdruckventil, um einen definierten Unterdruck innerhalb der Tintenkartusche 2 aufrechtzuerhalten.The bubble formation liquid 14 stored in the first chamber 4, in cooperation with the inlet structure 6, forms a differential pressure valve in order to maintain a defined negative pressure within the ink cartridge 2.

Die in der ersten Kammer 4 bevorratete Blasenbildungs-Flüssigkeit 14 hat eine höhere Oberflächenspannung, als die in der zweiten Kammer 8 bevorratete Tinte 10.The bubble formation liquid 14 stored in the first chamber 4 has a higher surface tension than the ink 10 stored in the second chamber 8.

Bei der in der ersten Kammer 4 aufgenommenen Blasenbildungs-Flüssigkeit 14 handelt es sich hier um Glycerin.The bubble formation liquid 14 received in the first chamber 4 is glycerol.

Innerhalb der ersten Kammer 4 ist vorliegend kein Kapillarelement, wie ein Schwamm oder dergleichen, angeordnet, der dazu eingerichtet ist, die in der ersten Kammer 4 zu bevorratete Blasenbildungs-Flüssigkeit 14 aufzunehmen.In the present case, no capillary element, such as a sponge or the like, is arranged within the first chamber 4 and is designed to receive the bubble formation liquid 14 to be stored in the first chamber 4.

Der Kanal 16 der Einlassstruktur 6 hat einen auskragenden Endabschnitt 18, der in die erste Kammer 4 ragt. Bei dem auskragenden Endabschnitt 18 handelt es sich um einen schmalen, dünnwandigen Steg 18, dessen quer zu einer Strömungsrichtung S gemessene Wanddicke d kleiner ist, als eine lichte Weite w eines Strömungsquerschnitts des Kanals im Bereich des auskragenden Endabschnitts 18.The channel 16 of the inlet structure 6 has a projecting end section 18 which projects into the first chamber 4. The projecting end section 18 is a narrow, thin-walled web 18, whose wall thickness d measured transversely to a flow direction S is smaller than a clear width w of a flow cross section of the channel in the region of the projecting end section 18.

Der Kanal 16 hat eine lokale Verengung 20. Ein im Bereich der lokalen Verengung 20 gebildeter Strömungsquerschnitt 22 beeinflusst das sich einstellende Unterdruckniveau.The channel 16 has a local constriction 20. A flow cross-section 22 formed in the region of the local constriction 20 influences the vacuum level that is established.

Der Kanal 16 verläuft mäanderförmig.The channel 16 is meandering.

Die lokale Verengung 20 ist in dem auskragenden Endabschnitt 18 gebildet. Die lokale Verengung 20 weist einen Schlitz 24 auf, in den ein Steg 26 ragt.The local constriction 20 is formed in the projecting end section 18. The local constriction 20 has a slot 24 into which a web 26 projects.

Die Tintenkartusche 2 hat ein Gehäuse 28, das mit einem Deckel 30 verschlossen ist. Der Deckel 30 und das Gehäuse 28 sind miteinander verschweißt. Der Deckel 30 und das Gehäuse 28 sind aus einem thermoplastischen Kunststoff hergestellt worden.The ink cartridge 2 has a housing 28 which is closed with a cover 30. The cover 30 and the housing 28 are welded together. The cover 30 and the housing 28 are made of a thermoplastic.

Fig. 3 zeigt den Deckel 30 und das Gehäuse 28 separat. Fig. 3 shows the cover 30 and the housing 28 separately.

Die lokale Verengung 20 hat ein an dem Gehäuse 28 gebildetes Profil 32. Der Steg 26 ist an dem das Gehäuse 28 verschließenden Deckel 30 gebildet, wobei das Profil 32 und der Steg 26 den Strömungsquerschnitt 22 der lokalen Verengung 20 begrenzen. Der Steg 26 ragt in das Profil 32, um die lokale Verengung 20 zu bilden.The local constriction 20 has a profile 32 formed on the housing 28. The web 26 is formed on the cover 30 closing the housing 28, the profile 32 and the web 26 delimiting the flow cross section 22 of the local constriction 20. The web 26 projects into the profile 32 in order to form the local constriction 20.

Das Profil 32 hat einen U-förmigen Querschnitt. Der Steg 26 hat einen im Wesentlichen rechteckigen Querschnitt. Der Steg 26 ist zweiseitig von Profilschenkeln 34 des U-förmigen Profilquerschnitts eingefasst. Durch eine Höhe h des in das U-Profil 32 ragenden Stegs 26 kann der freibleibende Strömungsquerschnitt 22 im Bereich der lokalen Verengung 20 definiert werden.The profile 32 has a U-shaped cross section. The web 26 has a substantially rectangular cross section. The web 26 is bordered on both sides by profile legs 34 of the U-shaped profile cross section. The free flow cross-section 22 in the area of the local constriction 20 can be defined by a height h of the web 26 projecting into the U-profile 32.

Das Profil 32 bildet zudem den Kanal 16, in dem die lokale Verengung 20 gebildet ist. Das Profil 32 ist von einem an dem Deckel 30 gebildeten Formelement 36 bedeckt, wobei das Profil 32 und das Formelement 36 einen Kanalquerschnitt begrenzen, der größer ist, als der freibleibende Strömungsquerschnitt 22 der Verengung 20. Der Kanalquerschnitt ist durch das Profil 32 und das Formelement 36 umfangsseitig vollständig eingefasst bzw. geschlossen, so dass ein zuströmender Luftstrom den Kanal 16 entlang seiner Mäanderform vollständig durchströmen muss, um in die Kammer 4 zu gelangen.The profile 32 also forms the channel 16 in which the local constriction 20 is formed. The profile 32 is covered by a shaped element 36 formed on the cover 30, the profile 32 and the shaped element 36 delimiting a channel cross section which is larger than the free flow cross section 22 of the constriction 20. The channel cross section is through the profile 32 and the shaped element 36 completely encircled or closed on the circumference, so that an inflowing air stream must flow completely through the channel 16 along its meandering shape in order to enter the chamber 4.

Zwischen der ersten Kammer 4 und der zweiten Kammer 8 ist eine dritte Kammer 40 vorgesehen, wobei die dritte Kammer 40 ein Teil der Verbindungsstruktur 12 ist. Die dritte Kammer 40 ist dazu eingerichtet, ein Vermischen von Blasenbildungs-Flüssigkeit 14 mit Tinte 10 in der ersten Kammer 4 und der zweiten Kammer 8 zu verhindern.A third chamber 40 is provided between the first chamber 4 and the second chamber 8, the third chamber 40 being part of the connecting structure 12. The third chamber 40 is arranged to prevent mixing of bubble formation liquid 14 with ink 10 in the first chamber 4 and the second chamber 8.

Zwischen den Flüssigkeiten 14, 10 ist demnach ein gasgefülltes Zwischenvolumen gebildet, wobei die Blasenbildungs-Flüssigkeit 14 das Zwischenvolumen gegenüber der Einlassstruktur 6 abgrenzt und wobei in dem Zwischenvolumen relativ zu einer Umgebung U ein Unterdruck vorliegt. Das Zwischenvolumen umfasst daher die Gasvolumina der Kammern 4, 8 und 40.Accordingly, a gas-filled intermediate volume is formed between the liquids 14, 10, the bubble-forming liquid 14 delimiting the intermediate volume from the inlet structure 6, and a negative pressure being present in the intermediate volume relative to an environment U. The intermediate volume therefore comprises the gas volumes of the chambers 4, 8 and 40.

Nachfolgend wird der Zustrom von Umgebungsluft aus der Umgebung U beschrieben.The inflow of ambient air from the environment U is described below.

Im Druckbetrieb wird der Tintenkartusche 2 Tinte 10 aus der Kammer 8 über einen Tintenauslass 42 entnommen. Die Pfeile mit der Bezeichnung Taus beschreiben das Ausströmen von Tinte 10. Die Tintenentnahme bewirkt ein Zuströmen von Umgebungsluft in die Tintenkartusche 2. Die Pfeile mit der Bezeichnung Lein beschreiben das Zuströmen von Umgebungsluft in die Tintenkartusche 2 aufgrund der Tintenentnahme.In printing operation, ink 10 is withdrawn from the chamber 8 via an ink outlet 42 from the ink cartridge 2. The arrows with the label T of describing the leakage of ink 10. The ink removal causes an inflow of ambient air into the ink cartridge 2. The arrows with the label L, a describe the inflow of ambient air into the ink cartridge 2 due to the ink removal.

Die Luft wird über eine Einlassöffnung 44 der Einlassstruktur 6 zu dem Kanal 16 geführt, wobei die Luft eine erste luftdurchlässige, flüssigkeitsundurchlässige Membran 45 passiert. Die Luft strömt weiter entlang des mäanderförmigen Kanals 16 zu dem auskragenden Endabschnitt 18 und passiert dabei die lokale Verengung 20, im Bereich derer der Kanalquerschnitt nach Art einer Drossel auf den Strömungsquerschnitt 22 reduziert ist.The air is guided to the channel 16 via an inlet opening 44 of the inlet structure 6, the air passing through a first air-permeable, liquid-impermeable membrane 45. The air flows further along the meandering channel 16 to the projecting end section 18 and thereby passes the local constriction 20, in the area of which the channel cross section is reduced to the flow cross section 22 in the manner of a throttle.

Die Luft strömt in die Blasenbildungs-Flüssigkeit 14 und bildet kleine Luftblasen 46, die in Richtung der Oberfläche 49 der Blasenbildungs-Flüssigkeit 14 aufsteigen.The air flows into the bubble formation liquid 14 and forms small air bubbles 46 which rise in the direction of the surface 49 of the bubble formation liquid 14.

Ausgehend von der Kammer 4 strömt die Luft über eine Verbindungsöffnung 48 in die Kammer 40. Aus der Kammer 40 strömt die Luft über Durchgangsöffnungen 50 und eine zweite Membran 52 in die Kammer 8. Dabei wird die Luft über die Durchgangsöffnungen 50 entlang einer Außenseite der Kartusche 2 geführt wobei die Außenseite Bereich der Durchgangöffnungen 50 und eines Zuströmkanals 54 von einer Folie 56 überspannt ist (Fig. 7). In Fig. 6 ist die Folie 56 ausgeblendet, um den Luftstrom entlang der Außenseite von den Durchgangsöffnungen hin zu dem Zuströmkanal 54 zu veranschaulichen.Starting from the chamber 4, the air flows into the chamber 40 via a connection opening 48. From the chamber 40, the air flows through through openings 50 and a second membrane 52 into the chamber 8. The air is passed through the through openings 50 along an outside of the cartridge 2 guided, the outside area of the through openings 50 and an inflow channel 54 being spanned by a film 56 ( Fig. 7 ). In Fig. 6 the film 56 is hidden to illustrate the air flow along the outside from the through openings towards the inflow channel 54.

Auf diese Weise gelangt die zuströmende Umgebungsluft in die Kammer 8. Der durch die Tintenentnahme zunächst größer werdende Unterdruck in der Kammer 8 wird durch das Zuströmen der Umgebungsluft auf das vorgesehene Unterdruckniveau eingestellt.In this way, the inflowing ambient air reaches the chamber 8. The negative pressure in the chamber 8, which initially increases due to the ink removal, is adjusted to the intended negative pressure level by the inflow of the ambient air.

Claims (9)

  1. Ink cartridge for a printer,
    - having a first chamber (4)
    - having an inlet structure (6) for supplying ambient air into the first chamber (4, 6),
    - having a second chamber (8) for storing ink (10)
    - having a connecting structure (12) for supplying supplied ambient air of the first chamber (4) into the second chamber (8),
    - wherein the first chamber (4) is arranged for storing a free-flowing bubble-forming liquid (14), and
    wherein the inlet structure (6) has at least one conduit (16) arranged to introduce ambient air into the free-flowing bubble-forming liquid (14) to be stored
    characterized in that
    the conduit (16) has a cantilevered end portion (18) projecting into the first chamber (4).
  2. Ink cartridge according to claim 1,
    characterized in that
    the conduit (16) has a local constriction (20).
  3. Ink cartridge according to claim 1 and 2,
    characterized in that
    the local constriction (20) is formed in the cantilevered end portion (18).
  4. Ink cartridge according to claim 2 or 3,
    characterized in that
    a flow cross-section (22) of the local constriction (20) is restricted by a bar (26) projecting into the conduit (16),
  5. Ink cartridge according to claim 4,
    characterized in that
    the local constriction (20) has a profile (32) formed on a housing (28) and the bar (26) is formed on a cap (30), which closes the housing (28), wherein the profile (32) and the bar (22) limit the flow cross-section (22) of the local constriction (20).
  6. Ink cartridge according to any of claims 2 to 5,
    characterized in that
    the local constriction (20) has a slot (24).
  7. Ink cartridge according to one of the preceding claims,
    characterized in that the conduit (16)
    - has a profile (32) which is formed on a housing (28) and is covered by a shaped element (36) which is formed on a cap (30), wherein the profile (32) and the shaped element (36) restrict a conduit cross-section,
    and/or
    - runs at least in sections in a meandering manner.
  8. Ink cartridge according to one of the preceding claims,
    characterized in that
    a third chamber (40) is provided between the first chamber (4) and the second chamber (8), wherein the third chamber (40) is part of the connecting structure (12).
  9. Ink cartridge according to one of the preceding claims,
    characterized in that
    the bubble-forming liquid (14) is received in the first chamber (4), ink (10) is received in the second chamber (8) and a gas-filled intermediate volume is formed in between the liquids, wherein the bubble-forming liquid (14) delimits the intermediate volume with respect to the inlet structure (6) and wherein a negative pressure is present in the intermediate volume relative to an environment (U).
EP17184328.7A 2017-08-01 2017-08-01 Ink cartridge for a printer Active EP3437883B1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
ES17184328T ES2790125T3 (en) 2017-08-01 2017-08-01 Ink cartridge for a printer
EP17184328.7A EP3437883B1 (en) 2017-08-01 2017-08-01 Ink cartridge for a printer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP17184328.7A EP3437883B1 (en) 2017-08-01 2017-08-01 Ink cartridge for a printer

Publications (2)

Publication Number Publication Date
EP3437883A1 EP3437883A1 (en) 2019-02-06
EP3437883B1 true EP3437883B1 (en) 2020-02-12

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ID=59506192

Family Applications (1)

Application Number Title Priority Date Filing Date
EP17184328.7A Active EP3437883B1 (en) 2017-08-01 2017-08-01 Ink cartridge for a printer

Country Status (2)

Country Link
EP (1) EP3437883B1 (en)
ES (1) ES2790125T3 (en)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1217801C (en) * 2003-11-28 2005-09-07 珠海天威飞马打印耗材有限公司 Ink-jet printer cartridge
DE202009001744U1 (en) 2009-02-11 2009-05-28 Artech Gmbh Design + Production In Plastic ink cartridge
CN201703034U (en) * 2010-05-27 2011-01-12 珠海天威飞马打印耗材有限公司 Ink cartridge of ink-jet printer

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Also Published As

Publication number Publication date
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EP3437883A1 (en) 2019-02-06

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