EP3078497A1 - Cartouche d'encre destinée à être utilisée dans une imprimante à jet d'encre - Google Patents

Cartouche d'encre destinée à être utilisée dans une imprimante à jet d'encre Download PDF

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Publication number
EP3078497A1
EP3078497A1 EP15163023.3A EP15163023A EP3078497A1 EP 3078497 A1 EP3078497 A1 EP 3078497A1 EP 15163023 A EP15163023 A EP 15163023A EP 3078497 A1 EP3078497 A1 EP 3078497A1
Authority
EP
European Patent Office
Prior art keywords
ink
chamber
cartridge
side wall
cartridge according
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP15163023.3A
Other languages
German (de)
English (en)
Inventor
Daniel Sulser
Joachim Kretschmer
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.)
Pelikan Hardcopy Production AG
Original Assignee
Pelikan Hardcopy Production AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Pelikan Hardcopy Production AG filed Critical Pelikan Hardcopy Production AG
Priority to EP15163023.3A priority Critical patent/EP3078497A1/fr
Publication of EP3078497A1 publication Critical patent/EP3078497A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
    • B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
    • B41J2/01—Ink jet
    • B41J2/17—Ink jet characterised by ink handling
    • B41J2/175—Ink supply systems ; Circuit parts therefor
    • B41J2/17503—Ink cartridges
    • B41J2/17513—Inner structure
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
    • B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
    • B41J2/01—Ink jet
    • B41J2/17—Ink jet characterised by ink handling
    • B41J2/175—Ink supply systems ; Circuit parts therefor
    • B41J2/17503—Ink cartridges
    • B41J2/17526—Electrical contacts to the cartridge
    • B41J2/1753—Details of contacts on the cartridge, e.g. protection of contacts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
    • B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
    • B41J2/01—Ink jet
    • B41J2/17—Ink jet characterised by ink handling
    • B41J2/175—Ink supply systems ; Circuit parts therefor
    • B41J2/17503—Ink cartridges
    • B41J2/17543—Cartridge presence detection or type identification
    • B41J2/17546—Cartridge presence detection or type identification electronically
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
    • B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
    • B41J2/01—Ink jet
    • B41J2/17—Ink jet characterised by ink handling
    • B41J2/175—Ink supply systems ; Circuit parts therefor
    • B41J2/17503—Ink cartridges
    • B41J2/17553—Outer structure

Definitions

  • the invention relates to an ink cartridge for an ink jet printer according to claim 1.
  • the ink cartridge In order to ensure optimum operation of the printing operation of an inkjet printer, it is advantageous if the ink cartridge always provides a similar slight negative pressure with respect to the Tintenzuaterabrough or the port of the cartridge during the lifetime, therefore, even with different ink level. As a result, a printing operation with consistently high quality is ensured in the expression and prevents leakage of a cartridge still containing ink when removing it from the printer. For this purpose, various solutions are known from the prior art.
  • the EP 791466 B1 a two-chamber cartridge having a first chamber containing the vent, ink outlet and a storage element, and a second, with the exception of a provided in the bottom region connecting opening to the first chamber, hermetically sealed ink storage chamber.
  • the storage element made of an absorbent material in the first chamber must always be filled with ink at least in the lower half, so that a capillary connection exists between the ink outlet and the connection opening. Otherwise, the ink from the storage chamber can not reach the ink outlet. This always leaves a considerable amount of ink in the cartridge, which can no longer be used for printing.
  • the EP 2214907 B1 a two-chamber cartridge in which both chambers are connected to the ambient air and the free ink in the pantry, through a caused by bubble generator pressure equalization can flow. Due to the necessary exact settings relatively small differential pressures, however, the parts of the bubble generator must be made in high precision, which increases the cost of production. Also in this type of absorber cartridge, the flow resistance is large, which precludes a complete emptying of the cartridge and can lead to poor print results towards the end of the life.
  • the object of the present invention is to provide an ink cartridge which avoids the above-described disadvantages of the prior art.
  • an ink cartridge is to be provided, which makes it possible with simple measures to provide over the use cycle, therefore, at all levels of the cartridge an approximately constant negative pressure, which allows easy printing operation.
  • Such an ink cartridge is characterized by the features of independent claim 1.
  • such an ink cartridge has an ink supply portion for fluidly connecting to an ink port of a recording apparatus, and an ink chamber containing free ink and an absorber chamber extending from an upper-use portion to a lower-use portion of the ink chamber at least in the lower quarter , but preferably at least in the lower half, particularly preferably substantially completely, is filled with an absorber which increases the chamber capillarity. It is to be understood from an upper to a lower region in the usual sense, namely that a central region, in particular an area halfway up the ink cartridge is at least included if, for example, a large part of the absorber chamber is located in the lower region of the cartridge.
  • Ink chamber and Absorber chamber are fluidly connected in a lower region through a small connection opening so that ink and at least towards the end of life and air bubbles can pass out of the absorber chamber.
  • the dimensions of the connection openings are large enough that they themselves do not increase the capillarity of the system.
  • ventilation is provided for connection to the ambient air.
  • the above-mentioned favorable properties can additionally be optimized by setting the volume ratio V A to V T between the chamber volume of the absorber chamber V A and the chamber volume of the ink chamber V T , between 0.05 and 0.35, preferably between 0.1 and 0.2.
  • the absorber chamber may extend from an area near the ink chamber bottom to an area near the ink chamber ceiling, preferably from the ink chamber bottom to the ink chamber ceiling.
  • the Tintenzuferrabites can be arranged in the ink chamber bottom, closer to a first so-called front side wall as a second of the first side wall opposite so-called rear side wall of the ink cartridge.
  • the connection opening and the ink-fluid-conducting supply opening arranged between the ink supply section and the ink chamber are located substantially at the same level of an intermediate, in use horizontal section of the ink chamber floor.
  • the horizontal section of the ink chamber floor lying between the connection opening and the supply opening can be designed, for example, as a channel or as a flat surface.
  • the feed opening may, for example, be arranged horizontally in the ground for a wick chamber or, for example, in the case of a valve chamber projecting at least partially out of the floor, may be designed as an opening which is at floor level. Analogous to this is also the Connection opening from the ink or Absorberhunt founded arranged extending upwards.
  • the capillarity or the bubble point of the absorber chamber can be adjusted by the choice of the absorber.
  • known storage or absorber materials such as natural or synthetic sponges, fiber storage and the like are suitable.
  • fiber accumulators having a density of between 1.00 and 2.00 g / cm 2 , preferably between 1.20 and 1.60 g / cm 2, are used.
  • the fiber material consists of a compound of 50 percent by weight of polyethylene (PE) to 50 percent by weight of polypropylene (PP), wherein the fiber thickness of 20 inclusive including 25 microns is set.
  • the capillary in the ventilation can be arranged parallel to the cartridge ceiling and thereby in or on this.
  • the capillary is ambient air side connected to at least one overflow chamber having a ventilation opening.
  • the overflow chamber may comprise a tube protruding downwardly from the capillary side into the overflow chamber.
  • an airtight sealable filling opening can be arranged in the area of the absorber chamber, preferably in the ceiling or a cover formed therefor, wherein, for example, via the ink supply section a negative pressure in the cartridge can be generated and then the ink can be supplied through the filling opening.
  • the amount of ink is advantageously dimensioned so that after filling the ink chamber filled, the absorber chamber or the absorber itself only in a range between 1 to 70 volume percent, preferably between 30 to 40 volume percent, is loaded with ink.
  • the ink having a very small flow resistance is taken directly from the ink chamber containing free ink.
  • the necessary negative pressure is achieved by the almost empty absorber without major expenses, if the volume ratio is set as described above.
  • spacers may be provided between the ventilation and the absorber in order to avoid a direct fluid-conducting coupling between the capillary of the ventilation and the absorber.
  • connection opening may be aligned towards the supply opening and / or the front side wall and is spaced from both.
  • the absorber chamber may thereby divide the ink chamber into a front region closer to the first side wall in which the ink supply section is located and a rear region closer to the second side wall, both being interconnected so that the ink is free therebetween can move. At least in a rear section can thereby an ink-dissipating sloping surface rising toward the rear side wall of the cartridge may be formed.
  • the cartridge preferably in the lower rear area, include a level indicator.
  • a level indicator may be an optical level indicator, for example, a prism or a light guide, preferably with respect to the bottom of the ink chamber bottom, for example.
  • the horizontal portion spaced in height and preferably in the inclined surface, thereby also in and under, in and over the oblique surface, or in a depending on the requirements or geometric design of the level indicator adapted geometric combination thereof, be arranged.
  • the absorber chamber can be arranged in a middle region of the cartridge, preferably on a third or fourth side wall, which respectively connects the first side wall to the second side wall.
  • the rising surface and / or the level indicator may additionally be connected to the ink supply section by means of a drainage in order to allow a complete outflow of the ink from the rear area.
  • the drainage can be provided in or on the chamber floor.
  • the ink supply section can be made in various ways according to the respective requirements of the ink connection the printer-side cartridge receptacle be executed. So he can on the one hand as a valve chamber which comprises a valve, for example. With a resiliently pressed in a valve seat valve body executed.
  • a wick may be provided for capillary coupling between the cartridge and the ink port in the ink supply section.
  • the Tintenzurerabêt of the ink chamber through a barrier filter is separated at the, in capillary contact with this the wick connects to contact the supply line to the print head.
  • the capillarity of the barrier filter is set greater than the capillarity of the wick.
  • the capillarity of the absorber is in turn chosen smaller than the capillarity of the wick.
  • barrier filter, wick and absorber constructed similar, for example, as a sponge or random fiber filter, or from similar or even the same material, the different capillarity by a different density, in particular pore density can be produced.
  • the wick may also consist of directional fibers, in particular substantially parallel to the direction of flow, in order to reduce the flow resistance.
  • a barrier filter of metallic square mesh was a PU foam, which was used to seal the connection opening with a hotmelt-coated, removable film (remove film). particularly good, because it does not stick itself in contrast to fiber material.
  • the filling openings and / or the or a ventilation opening and / or an outer connection opening of the ink supply section can be designed, for example, to be lockable for transport. This can preferably be done with an airtight, peel-off film or perforatable film by means of a lance.
  • means may be provided in or on the ink supply section to prevent leakage of the ink cartridge.
  • these means may comprise a valve, for example with a valve body, spring and valve seat, a wick, a sponge used as a wick, a blocking filter and / or a sealing film.
  • cartridge 1 has a first front side wall 11, a second front side wall opposite the rear side wall 12, a third side wall 13 and a fourth side wall 14. It is located on the front side wall 11, a lever 40 with a piercing pin 41 for opening a in FIGS. 3 to 5 shown vent opening 20 which leads into the outer of the two overflow chambers 19.
  • the closure for the transport is effected by the film 32 overlapping from the upper side to the first side.
  • a chip holder 37 for accommodating a semiconductor circuit, a so-called chip 38, the chip holder by the spring 39 in the Position used in the printer against the contacts of the cartridge holder, not shown here is pressed.
  • the ceiling of the cartridge is formed here from a two-part cover 44, wherein between the parts of the lid 44 two capillaries 18 are formed.
  • a capillary leads from the absorber chamber 5 to the inner overflow chamber
  • a second capillary leads from the inner overflow chamber to the outer overflow chamber, which is positioned closer to the front and in turn via an as in FIG. 3 shown vent opening 20, after piercing the film 32 is connected to the ambient air.
  • the overflow chambers 19 protrudes from the lower cover member 44 each one, with the upstream of the ink side capillary 18 connected pipe 21.
  • the sealing of the filling opening 22 is also carried out here with film 32 on the additionally a label 33 is provided for labeling.
  • the overflow chambers 19 are arranged in an upper area in use, under which chip holder 37, as well as, between the chip holder 37 and ink chamber 4, a valve chamber 27 which extends into extends the ink nozzle 3.
  • the valve comprises a valve seat 36, a spherical valve body 35 and a valve spring 34.
  • the dimensioned for the printer-side cartridge receptacle connection opening 31 of the ink nozzle 3 is also closed by a film 32 in addition to the valve for transport.
  • the film 32 can be pierced when inserted into the printer holder by a arranged there, not shown here hollow needle for forwarding the ink.
  • the absorber chamber 5 is arranged here in a central region on the third side wall 13.
  • the absorber 6, which consists of one or, if necessary, also different capillary storage materials, extends substantially over the entire height of the absorber chamber, which in turn extends from the ink chamber bottom 9 to the ink chamber ceiling 10.
  • the inclined surface 25 is embodied here as an insert in the ink chamber bottom, wherein the optional drainage 42 embedded in the ink chamber bottom 9 or, for example, can be placed in the form of two Leitwalle.
  • a support wall 43 can still be seen in the rear region 24, which gives the cartridge additional mechanical stability.
  • FIG. 3 discloses another cartridge 1 'according to the invention, wherein like reference numerals have the same meaning as previously.
  • the tubes 21 as well as parts of Capillaries 18 are partially recognizable in the longitudinal, partly in cross-section, as well details of the chip holder 37 and the valve 28.
  • the connection opening 7 can be seen through which the fluid exchange, ie of ink and at least as the cartridge progresses, also of air bubbles, takes place between the absorber chamber and the ink chamber.
  • an optical level indicator 26 can be seen in the rear region 24 of the ink chamber 4, in the inclined surface 25, an optical level indicator 26 can be seen. This can be carried out in a known manner as a prism or as a light guide.
  • Such fill level indicators 26 can in principle be used with any cartridge according to the invention, provided that corresponding fill level detection means are provided on the printer side.
  • FIGS. 4 and 5 show the cartridge 1 'of the second embodiment, once in the filled state ( FIG. 4 ) and once in a condition towards the end of the life of the ink cartridge ( FIG. 5 ). It can be seen that although in FIG. 5 the ink level in the ink chamber 4 has already dropped to less than half the height, the Absorbtions Exercise, ie the height to which the absorber is loaded with ink, in the absorber is substantially the same, remained in a lower portion of the absorber chamber. Such behavior can be advantageously achieved by a special filling method. In this case, a vacuum is applied to the connection opening 31 of the cartridge and then connected Ink is supplied via the filling opening 22 until the ink chamber 4 is almost completely filled.
  • FIG. 6 shows details of the guidance of the capillaries 18 in a two-part cover 44.
  • FIG. 7 shows a detailed view of the overflow chambers 18 with longitudinal section of the tubes 21 and the overflow chambers 19 connecting capillaries 18 wherein the ventilation path from the point outside the cartridge in the direction of arrow runs.
  • FIG. 8 Another embodiment of a cartridge according to the invention is shown in FIG. 8 displayed.
  • the provided in this case directly in the ink chamber bottom 9 feed opening 16 to the wicking chamber is advantageously limited to the ink chamber 4 by a blocking filter 29.
  • Wick 30 and barrier filter 29 are made of memory materials of different capillarity.
  • the wick may consist of random fibers or directed fibers of a smaller capillarity, which also corresponds to a smaller differential pressure in the determination of the bubble point.
  • the capillarity of the barrier filter 29 is set higher.
  • the barrier filter may be made of random fibers or sponge-like material.
  • the capillarity of the absorber 6 in the absorber chamber 5 is in turn set smaller than the capillarity of the wick 30.
  • the capillaries in the cartridge are always to be adapted to the capillarity provided by the printer receptacle so that even the material with the highest capillarity in the cartridge has a lower absorbency than the capillarity of the printer receptacle.
  • a fill level indicator 26 designed here as an optical waveguide can be seen in the rear bottom area of the cartridge 1 ".
  • This type of cartridge also has a chip holder rotatably mounted about a Y-axis in a rear transition area between the cartridge bottom and the rear side wall 12.

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  • Ink Jet (AREA)
EP15163023.3A 2015-04-09 2015-04-09 Cartouche d'encre destinée à être utilisée dans une imprimante à jet d'encre Withdrawn EP3078497A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP15163023.3A EP3078497A1 (fr) 2015-04-09 2015-04-09 Cartouche d'encre destinée à être utilisée dans une imprimante à jet d'encre

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP15163023.3A EP3078497A1 (fr) 2015-04-09 2015-04-09 Cartouche d'encre destinée à être utilisée dans une imprimante à jet d'encre

Publications (1)

Publication Number Publication Date
EP3078497A1 true EP3078497A1 (fr) 2016-10-12

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ID=52814025

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Application Number Title Priority Date Filing Date
EP15163023.3A Withdrawn EP3078497A1 (fr) 2015-04-09 2015-04-09 Cartouche d'encre destinée à être utilisée dans une imprimante à jet d'encre

Country Status (1)

Country Link
EP (1) EP3078497A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108501536A (zh) * 2017-02-28 2018-09-07 迈博高分子材料（宁波）有限公司 一种打印墨盒
CN110039634A (zh) * 2019-05-22 2019-07-23 共享智能装备有限公司 一种墨盒和砂型3d打印机
WO2024102329A1 (fr) * 2022-11-07 2024-05-16 Videojet Technologies Inc. Boîtier pour cartouche d'imprimante et procédé de fabrication

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0948137A (ja) * 1995-08-04 1997-02-18 Canon Inc 液体貯蔵容器
EP1147903A1 (fr) * 2000-04-18 2001-10-24 Canon Aptex Kabushiki Kaisha Réservoir d'encre et cartouche à jet d'encre
EP0791466B1 (fr) 1992-07-24 2002-01-23 Canon Kabushiki Kaisha Réservoir d'encre et appareil d'enregistrement à jet d'encre l'utilisant
EP1440805A1 (fr) * 2001-10-31 2004-07-28 Print-Rite Unicorn Image Products Co. Ltd of Zhuhai Cartouche d'encre pour imprimante
US20050041077A1 (en) * 2003-08-23 2005-02-24 Jae-Cheol Lee Ink cartridge
DE102007055162A1 (de) * 2007-11-19 2009-05-20 Pelikan Hardcopy Production Ag Tintenpatrone, insbesondere für Tintenstrahldrucker
WO2011159285A1 (fr) * 2010-06-15 2011-12-22 Hewlett-Packard Development Company, L.P. Réservoir de fourniture d'encre
EP1798043B1 (fr) 2005-12-13 2013-02-13 Seiko Epson Corporation Unité de vanne de pression différentielle
US20140063113A1 (en) * 2012-08-31 2014-03-06 Mark Edward Irving Inkjet printing system

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0791466B1 (fr) 1992-07-24 2002-01-23 Canon Kabushiki Kaisha Réservoir d'encre et appareil d'enregistrement à jet d'encre l'utilisant
JPH0948137A (ja) * 1995-08-04 1997-02-18 Canon Inc 液体貯蔵容器
EP1147903A1 (fr) * 2000-04-18 2001-10-24 Canon Aptex Kabushiki Kaisha Réservoir d'encre et cartouche à jet d'encre
EP1440805A1 (fr) * 2001-10-31 2004-07-28 Print-Rite Unicorn Image Products Co. Ltd of Zhuhai Cartouche d'encre pour imprimante
US20050041077A1 (en) * 2003-08-23 2005-02-24 Jae-Cheol Lee Ink cartridge
EP1798043B1 (fr) 2005-12-13 2013-02-13 Seiko Epson Corporation Unité de vanne de pression différentielle
DE102007055162A1 (de) * 2007-11-19 2009-05-20 Pelikan Hardcopy Production Ag Tintenpatrone, insbesondere für Tintenstrahldrucker
EP2214907B1 (fr) 2007-11-19 2014-11-12 Pelikan Hardcopy Production AG Cartouche d'encre destinée en particulier à une imprimante à jet d'encre
WO2011159285A1 (fr) * 2010-06-15 2011-12-22 Hewlett-Packard Development Company, L.P. Réservoir de fourniture d'encre
US20140063113A1 (en) * 2012-08-31 2014-03-06 Mark Edward Irving Inkjet printing system

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108501536A (zh) * 2017-02-28 2018-09-07 迈博高分子材料（宁波）有限公司 一种打印墨盒
CN110039634A (zh) * 2019-05-22 2019-07-23 共享智能装备有限公司 一种墨盒和砂型3d打印机
WO2024102329A1 (fr) * 2022-11-07 2024-05-16 Videojet Technologies Inc. Boîtier pour cartouche d'imprimante et procédé de fabrication

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