EP0676294B1 - Cartouche d'impression par jet d'encre - Google Patents

Cartouche d'impression par jet d'encre Download PDF

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Publication number
EP0676294B1
EP0676294B1 EP95810218A EP95810218A EP0676294B1 EP 0676294 B1 EP0676294 B1 EP 0676294B1 EP 95810218 A EP95810218 A EP 95810218A EP 95810218 A EP95810218 A EP 95810218A EP 0676294 B1 EP0676294 B1 EP 0676294B1
Authority
EP
European Patent Office
Prior art keywords
housing
ink
bore
ink cartridge
print head
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
EP95810218A
Other languages
German (de)
English (en)
Other versions
EP0676294A3 (fr
EP0676294A2 (fr
Inventor
Gordian Mächler
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
Publication of EP0676294A2 publication Critical patent/EP0676294A2/fr
Publication of EP0676294A3 publication Critical patent/EP0676294A3/fr
Application granted granted Critical
Publication of EP0676294B1 publication Critical patent/EP0676294B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
    • B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
    • B41J2/01—Ink jet
    • B41J2/17—Ink jet characterised by ink handling
    • B41J2/175—Ink supply systems ; Circuit parts therefor
    • B41J2/17503—Ink cartridges
    • B41J2/17513—Inner structure

Definitions

  • a cartridge is known from EP-A-560 729. She has one Front wall of a housing, an opening into which a neck of a Printhead can be inserted sealingly. The stub is closed at the front by a sieve, which when inserted a little bit compressed with an ink-soaked foam body, so that ink is pushed into the nozzle.
  • a sieve which when inserted a little bit compressed with an ink-soaked foam body, so that ink is pushed into the nozzle.
  • this pump makes them more expensive Ink cartridge.
  • An ink cartridge is also known from EP-A-553 535 a housing that is closed on all sides and that has a first opening for Holding a tubular needle of an ink jet printer, and a second opening for the supply of air to the interior of the housing, which contains an ink-soaked foam body.
  • the first opening contains one that acts as a sealing surface 0-ring.
  • There is a film on the outside of the first opening welded on by the tubular needle of the printhead is punctured when inserting the cartridge. Because the piercing the film is done before the needle is sealed by the O-ring ink may leak when the ink cartridge is installed.
  • EP-A-645 243 is also a Ink cartridge known, which also has a housing with a first Has opening in which an elastomeric plug with a blind hole is inserted. A second opening for the supply of air is sealed in the delivery condition by a film, which after the Inserting the cartridge is pierced by a pusher. The The plug is inserted through a hollow needle of the printhead punctured. The hollow needle seals in the plug beforehand, see above that the above problem of ink leakage does not exist.
  • Figure 1 is a cross section through a print head 1 with a replaceable ink cartridge 2 shown.
  • the printhead 1 has a nozzle plate with several narrow nozzles 3, which each a thermoelectric heating element is assigned, and the over Channels 4 are connected to a tubular nozzle 5.
  • the Socket 5 is closed at the top by a sieve 6. Becomes a Heating element is currently heated, a gas bubble forms, and due to the overpressure, an ink droplet becomes from the concerned one Nozzle ejected. After the gas bubble collapses is caused by the surface tension at the nozzle mouth sucked out of the nozzle 5. This mode of operation of the printhead is known.
  • the cartridge 2 is in a rectangular tube Approach 7 of the printhead 1 inserted and with interacting Locking elements 8, 9 secured.
  • the cartridge 2 consists of a housing 15 and a cover 16.
  • the bottom 17 of the housing 15 has a stepped bore 18, in which is an elastomeric sealing plug 19 with a tubular wall 20 and a cover 21 integrally connected thereto is.
  • the cover 21 has predetermined breaking notches 22, which are shown in FIG Example are star-shaped.
  • the ventilation opening is formed by a capillary gap between a relatively long bore 28 of the housing 15, in which a slightly smaller diameter mandrel 29 of the cover 16 is inserted.
  • the lid 21 is closed and the lid 21 only through the Stub 5 is broken after the wall 20 of the sealing plug 19 sealed against the nozzle 5, there is a simple and safe handling.
  • no opening needs to be cleared (e.g. by removing a sealing film). It is therefore not a drop from one Opening possible.
  • the filter 25 reliably prevents entry any contamination of the ink in the nozzle 5 and thus into the narrow nozzles of the nozzle plate 3. It diminishes also the accumulation of particles on the screen 6 of the head 1, what is the flow resistance through the strainer over time would increase. This will increase the life of the printhead 1 elevated.
  • the sealing plug 19 can also from this Material consist and injection molded in one piece with the housing 15 his.
  • the sealing plug is 19th sleeve-shaped and has no lid 21 Inside a pin 33 is inserted, on the top has a tab 34 projecting on one side. The free end 35 of the tab 34 is connected to the bottom 17 of the housing 15, e.g. welded.
  • Tab 34 prevents it from being flat when the nozzle is inserted whose face can rest and clog it.
  • the embodiment according to FIG. 5 is an air inlet into the anteroom 23 completely avoided when inserting the socket 5.
  • the bore 28 is behind extended below and the mandrel 29 formed on the print head 1.
  • the bore 28 In front the insertion of the cartridge 2 is the bore 28 through a thin Membrane 40 closed, which when inserted through the mandrel 29 pierce immediately before the latching elements 8, 9 engage becomes.
  • the mandrel 29 has a longitudinal groove 41, at the upper end a connection of the capillary gap between bore 28 and Ensure mandrel 29 and the cavity 27. Otherwise, the Embodiment according to Figure 6 formed the same as that of Figures 1 or 5.
  • the bore is new 28 closed at the lower end with an elastomeric pin 42, when inserting the cartridge 2 through the front end the mandrel 29 immediately before the latching elements 8 engage, 9 is pushed out of the bore 28 into the cavity 27.
  • the Pin 42 acts when cartridge 2 is inserted into printhead 1 as a piston. This can result in a higher one when the cartridge is inserted Overpressure are generated, and thus the nozzle even better be filled. This makes it possible to start a rinsing process waive in the printer before the printhead starts operating again is taken.
  • Deviating from the described embodiment may be at the top Be an end of the mandrel 29 an O-ring attached when inserting the cartridge 2 seals against the bore 28 and at complete inserted cartridge protrudes into the cavity 27.
  • the vestibule can also open other ink cartridges 26 is not closed by a cover 21 or 33, be used sensibly with a corresponding effect.

Landscapes

  • Ink Jet (AREA)

Claims (8)

  1. Cartouche d'encre pour une tête d'impression d'une imprimante à jet d'encre, comprenant un boítier (15, 16) fermé de tous côtés et comprenant une première ouverture (26) servant à loger un embout de forme tubulaire (5) de la tête d'impression (1), ainsi qu'une seconde ouverture (28, 29) pour l'envoi d'air dans l'espace intérieur du boítier (15, 16), et dans laquelle l'espace intérieur contient de l'encre, la première ouverture à l'intérieur d'un perçage agissant en tant que surface d'étanchéité (26) est fermé par un couvercle (21, 23), qui s'ouvre, lors de l'enfichage de l'embout (5), et dans laquelle le couvercle (21) est moulé d'un seul tenant sur la surface d'étanchéité (26) et comporte des encoches de rupture de consigne (22), ou dans lequel le couvercle est agencé sous la forme d'un téton (23) inséré dans le perçage (26) et qui est fixé unilatéralement sur le côté intérieur au moyen d'une patte (34) sur le boítier (15).
  2. Cartouche d'encre selon la revendication 1, dans laquelle la surface d'étanchéité (26) et le couvercle (21) sont formés sur un bouchon élastomère (20), qui est inséré dans un perçage (18) du boítier.
  3. Cartouche d'encre selon la revendication 1 ou 2, dans laquelle une chambre avant (23) remplie d'encore libre est disposée sur le côté intérieur du couvercle (21, 33).
  4. Cartouche d'encre selon la revendication 3, dans laquelle l'espace intérieur du boítier (15, 16) contient un corps en matériau mousse (24) imprégné d'encre, qui est limité par rapport à la chambre avant (23), par un filtre (25).
  5. Cartouche d'encre selon l'une des revendications 1 à 4, dans laquelle le boítier (15, 16) est formé de deux parties, à savoir un corps de boítier (15) et un élément formant couvercle (16), et dans laquelle la seconde ouverture est formée par un pèrçage allongé (28) formé dans l'une des parties (15) et dans lequel est enfiché, avec un faible jeu, un mandrin (29) formé sur l'autre partie (16).
  6. Tête d'impression comportant une cartouche d'encre selon l'une des revendications 1 à 4, dans laquelle la seconde ouverture est formée par un perçage allongé (28) situé dans le boítier (15, 16) et dans lequel un mandrin (29) formé sur la tête d'impression (1) est enfiché avec un faible jeu lorsque la cartouche (2) est insérée.
  7. Tête d'impression comportant une cartouche d'encre selon la revendication 6, dans laquelle à l'état neuf, le perçage (28) est fermé par une membrane (40), qui est perforée par l'extrémité frontale du mandrin (27), lors de l'insertion de la cartouche (2).
  8. Tête d'impression comportant une cartouche d'encre selon la revendication 6, dans laquelle lors de l'insertion de la cartouche, le mandrin agit en tant que tige de piston qui enfonce un élément d'étanchéité (42) le long du perçage (28) dans une cavité (28) du boítier (15, 16) et agit en tant qu'organe de pompe.
EP95810218A 1994-04-06 1995-04-04 Cartouche d'impression par jet d'encre Expired - Lifetime EP0676294B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE9405723U 1994-04-06
DE9405723U DE9405723U1 (de) 1994-04-06 1994-04-06 Tintenpatrone für einen Druckkopf eines Ink-Jet-Printers

Publications (3)

Publication Number Publication Date
EP0676294A2 EP0676294A2 (fr) 1995-10-11
EP0676294A3 EP0676294A3 (fr) 1998-01-07
EP0676294B1 true EP0676294B1 (fr) 2001-09-26

Family

ID=6906984

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95810218A Expired - Lifetime EP0676294B1 (fr) 1994-04-06 1995-04-04 Cartouche d'impression par jet d'encre

Country Status (3)

Country Link
US (1) US6074049A (fr)
EP (1) EP0676294B1 (fr)
DE (2) DE9405723U1 (fr)

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5619239A (en) 1993-11-29 1997-04-08 Canon Kabushiki Kaisha Replaceable ink tank
AU688545B2 (en) 1994-08-24 1998-03-12 Canon Kabushiki Kaisha Ink container for ink jet printer, holder for the container carriage for the holder and ink jet printer
DE29507743U1 (de) * 1995-05-10 1996-09-12 Pelikan Produktions Ag Druckkopf für einen Ink-Jet-Printer
DE19604560C2 (de) * 1996-02-08 1998-11-05 Dia Nielsen Gmbh & Co Kg Zubeh Adapter für auswechselbare Patronen
US5821964A (en) * 1996-07-24 1998-10-13 Dataproducts Corporation Cartridge for supplying liquid to a print head
US6464338B1 (en) * 1996-07-31 2002-10-15 Canon Kabushiki Kaisha Ink jet head with separable tank holding member and recording unit
AU2003200319B2 (en) * 1996-07-31 2005-11-24 Canon Kabushiki Kaisha An Ink Jet Recording Head, an Ink Jet Head Cartridge, and an Ink Jet Recording Apparatus
JP3530684B2 (ja) * 1996-07-31 2004-05-24 キヤノン株式会社 インクタンク
US6244697B1 (en) 1999-06-30 2001-06-12 Lexmark International, Inc. Filter tower for ink jet printhead
US6398354B1 (en) 1999-06-30 2002-06-04 Lexmark International, Inc. Printhead apparatus and printer having separate filtration device and method for attaching said device
US6270211B1 (en) 1999-07-07 2001-08-07 Lexmark International, Inc. Bubble elimination and filter tower structure
US6390615B1 (en) * 2000-06-19 2002-05-21 Xerox Corporation Ink tank with securing means and seal
US6880925B2 (en) * 2001-05-31 2005-04-19 Canon Kabushiki Kaisha Liquid discharge recording head, liquid discharge recording apparatus, and method for producing stopper member for liquid discharge recording head
EP1295723B1 (fr) * 2001-09-19 2006-03-08 Seiko Epson Corporation Cartouche d'encre et son procédé de fabrication
KR100452851B1 (ko) * 2002-10-23 2004-10-14 삼성전자주식회사 적정 부압이 유지되는 잉크 카트리지
KR100512987B1 (ko) * 2003-01-16 2005-09-07 삼성전자주식회사 잉크카트리지
US20040150698A1 (en) * 2003-01-31 2004-08-05 William Caro Inkjet pen with removable lid
ITMI20031153A1 (it) * 2003-06-06 2004-12-07 Anteprima S R L Sistema di alimentazione di inchiostro per stampanti a

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5859850A (ja) * 1981-10-07 1983-04-09 Nec Corp インク受渡し装置
US5182581A (en) * 1988-07-26 1993-01-26 Canon Kabushiki Kaisha Ink jet recording unit having an ink tank section containing porous material and a recording head section
IT1232551B (it) * 1989-07-13 1992-02-19 Olivetti & Co Spa Testina di stampa per una stampante termica a getto d'inchiostro
EP0519457B1 (fr) * 1991-06-19 1997-09-03 Canon Kabushiki Kaisha Réservoir d'encre pour dispositif enregistreur à jet d'encre
JP3238756B2 (ja) * 1992-08-31 2001-12-17 キヤノン株式会社 インクジェットカートリッジおよび記録装置
DE69232243T2 (de) * 1992-01-28 2002-07-25 Seiko Epson Corp Tintenvorratspatrone und Behälter dafür
ATE138015T1 (de) * 1992-03-10 1996-06-15 Pelikan Produktions Ag Tintenpatrone für einen druckkopf eines ink-jet- printers
US5307091A (en) * 1992-03-16 1994-04-26 Lexmark International, Inc. Jet ink refill supply
JPH06966A (ja) * 1992-06-18 1994-01-11 Fuji Xerox Co Ltd インクジェットカートリッジ並びにこれに用いられるインクタンク及びインクジェットヘッド
JP3170380B2 (ja) * 1993-02-17 2001-05-28 株式会社リコー インクジェットプリンタ
IT1261876B (it) * 1993-09-23 1996-06-03 Olivetti Canon Ind Spa Modulo di stampa a getto di inchiostro ricaricabile

Also Published As

Publication number Publication date
EP0676294A3 (fr) 1998-01-07
DE59509626D1 (de) 2001-10-31
DE9405723U1 (de) 1994-06-01
US6074049A (en) 2000-06-13
EP0676294A2 (fr) 1995-10-11

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