EP1275509A2 - Cartouche d'encre comportant une chambre vide - Google Patents

Cartouche d'encre comportant une chambre vide Download PDF

Info

Publication number
EP1275509A2
EP1275509A2 EP02013465A EP02013465A EP1275509A2 EP 1275509 A2 EP1275509 A2 EP 1275509A2 EP 02013465 A EP02013465 A EP 02013465A EP 02013465 A EP02013465 A EP 02013465A EP 1275509 A2 EP1275509 A2 EP 1275509A2
Authority
EP
European Patent Office
Prior art keywords
ink
chamber
ink cartridge
empty
cartridge
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.)
Granted
Application number
EP02013465A
Other languages
German (de)
English (en)
Other versions
EP1275509A3 (fr
EP1275509B1 (fr
Inventor
Tobias Werdenberg
Philippe G. Locher
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 EP1275509A2 publication Critical patent/EP1275509A2/fr
Publication of EP1275509A3 publication Critical patent/EP1275509A3/fr
Application granted granted Critical
Publication of EP1275509B1 publication Critical patent/EP1275509B1/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
    • 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

Definitions

  • the invention relates to an ink cartridge for an inkjet printer, which has a housing with longitudinal walls and a lid, the longitudinal walls between their have respective tapered ends and their respective lower ends.
  • a such an ink cartridge generally has a cartridge housing with more than one chamber on, a porous material for storing the ink being provided in the chambers.
  • the cartridge housing has a base plate, side walls, partitions and a cover on. Base plate, side walls and partitions are as a one-piece plastic injection molded part educated. Side walls and base plate can be both flat and preferably be structured in three dimensions.
  • Such ink cartridges are out known in the art.
  • the invention is therefore based on the object of an ink cartridge at the outset Specify the type described, which is technically simple and inexpensive can be produced without having the disadvantages of the prior art mentioned.
  • the ink cartridge according to the invention has a housing with longitudinal walls and one Cover with the longitudinal walls of the housing between their respective upper end and have a taper at their respective lower ends, the inside of the Ink cartridge partition walls are formed which are a disc-shaped ink chamber or limit several disk-shaped ink chambers, and being next to the ink chamber or the ink chambers have at least one empty chamber.
  • empty chamber is understood to mean a chamber which is not serves as an ink reservoir.
  • the empty chamber essentially comprises that to the disk-shaped ink chamber (s) adjacent area between one of the partitions and one of the long walls.
  • the empty chamber essentially comprises that to the disk-shaped ink chamber (s) adjacent area between one of the partitions and one of the long walls.
  • the two empty chambers are connected to each other via a narrow side or that the two empty chambers, for example for reasons of stability, are further subdivided. So can for example, cross bracing to support the partitions.
  • One or more disk-shaped ink chambers are formed by the partition walls, which the use of sponges of constant thickness and thus simpler geometry enable.
  • “disk-shaped” is to be understood accordingly that the ink chamber in the has a uniform width over its entire base area. So that can the sponges used in such a cartridge in a conventional manner are punched out of sponge plates of constant thickness. An elaborate and expensive Adjustment of the ink storage sponges in the thickness direction can be omitted.
  • the housing can be molded or cast from a plastic in the usual way.
  • the Partitions are preferably integrally formed with the housing so that there is none additional work step is required to generate and use them. In this way this results overall in a time saving in the production of the invention Ink cartridge over those of the prior art. Connected to the simpler Sponge making is also a cost saving in sponge making and thus the entire ink cartridge.
  • a on the top of the lid meandering groove formed, one end of which in a ventilation opening into the interior of the Housing opens.
  • the ventilation opening is usually also used to fill the Ink cartridge.
  • the lid is glued with a film to transport the cartridge or welded, which covers the entire groove and the ventilation opening. To this The interior of the cartridge is initially completely sealed. Before or after When the cartridge is inserted into the printer, part of the film is torn off, leaving the second End of the groove is exposed to the outside. That way inside the cartridge Penetrating air allows ink to be drawn from the printer. For tearing off the film a suitable predetermined tear point is preferably formed.
  • the meandering shape of the groove serves to result from the ventilation opening Absorb pressure fluctuations as ink leaks and ink loss due to evaporation to keep as low as possible.
  • the film can be one with a thermoplastic Material coated aluminum foil or a laminated or non-laminated thermoplastic film.
  • the film can for example be glued, e.g. With a hot melt adhesive, attached to the lid.
  • the ventilation opening opens into the ink chamber, wherein the ink chamber is hermetically sealed against the at least one empty chamber.
  • the ventilation opening opens into one of the Empty chambers, a connecting line between this empty chamber and the Ink chamber is present.
  • the empty chamber thus serves as a compensation chamber between Ink chamber and surrounding atmosphere.
  • the Connection line preferably formed as a groove in the lid. This will ensures that ink is not immediately from the ink chamber to the empty chamber spilling over.
  • the partitions themselves are designed without an opening.
  • the connecting line between the chambers is therefore not a direct connecting line, but leads over the exterior of the housing.
  • the film can be the same film act that also covers the meandering groove of the lid, but with the difference that the groove forming the connecting line must always be completely covered.
  • the serving as compensation chamber An empty absorbent material can be attached, preferably in the area of the empty chamber Connection opening to the ink chamber, which serves as a result of pressure fluctuations absorb any ink that escapes.
  • absorbent materials like Fibrous materials such as Cotton, felt, paper or porous materials such as Sponge materials, such as portions of the porous material used as an ink reservoir in question.
  • FIGS. 1a and 1b is a perspective view of a housing 1 of an inventive See ink cartridge.
  • the housing has a cover 2 (not in FIGS. 1a and 1b visible), which is firmly attached to the lower part of the housing (e.g. by welding) connected is.
  • the housing has two longitudinal walls 3, between their upper ends 3a and their lower ends 3b each have a taper 3c. in the case shown, the housing of the ink cartridge is tapered downwards.
  • the inside of the ink cartridge is divided by partitions 4.
  • the partitions 4 delimit on the one hand a central ink chamber 5, which extends over the entire length has uniform thickness, and two empty chambers 6; 7th
  • the two partition walls 4 extend consistently over the entire length of the housing 1. Between the ink chamber 5 and the two empty chambers 6; 7 there is no connection in the partition walls 4.
  • the housing described can be closed, for example, by a cover 2, as it is 4 to 6 is shown.
  • 4 is a meandering shape Groove 8 can be seen, one end 8a of which opens into an opening 9 into the interior of the housing.
  • the opening 9 is arranged centrally here, so that it leads directly into the ink chamber 5.
  • the second end 8b of the meandering groove is extended to a vertical arm.
  • the cartridge is at least the area of the ventilation opening 9 and meandering groove 8 covered by a film, a predetermined tear point being formed that when the film is torn off, the end 8b is exposed, so that through the groove 8 and Ventilation opening 9 an air exchange with the environment can take place.
  • FIG. 5 shows a cross section through the lid of FIG. 4, clearly showing the continuous ventilation opening 9 and the groove or recess 8 can be seen.
  • FIG. 6a is the same cover in perspective from above and in perspective from below shown.
  • Fig. 7 is the lid of a second embodiment of an inventive Ink cartridge shown in top view.
  • the lower part of the housing of this second Embodiment corresponds to that shown in FIGS. 1 to 3.
  • this lid is on the top of a meandering groove 8, one end 8a in a Ventilation opening 9 opens.
  • the ventilation opening 9 shown here leads, however, differently than in the previously described embodiment, in one of the empty chambers in the present Fall into the right empty chamber. This empty chamber is thus above the groove with the environment in connection.
  • a groove is formed at a distance from the ventilation opening Connection line 10 can be seen in the lid 2, which the ink chamber with one Empty chamber connects.
  • This connecting line 10 runs here on the top of the Lid, as well as the meandering groove 8.
  • connection opening 11 One end of the groove opens into one Connection opening 11, which leads to the empty chamber, and the other end of the Connection line 10 opens into an opening 12 which leads to the ink tank.
  • the cover is completely or only in the area of the grooves and openings shown by a sealing film covered, which is partially indicated here by hatched lines.
  • a sealing film covered On the dashed line in the upper left corner of the lid can be formed a predetermined tear through which front end 8b of the meandering groove can be exposed.
  • the connecting line 10 is not a groove on the Top of the lid, but is formed as a groove on the underside of the lid.
  • the Connection openings 11 and 12 can be omitted in this embodiment.
  • An advantage This embodiment is that less sealing film is used because only the Area of the meandering groove 8 and the ventilation opening 9 may be covered by film got to. It is also possible to use the one that is not connected to the ink chamber Empty chamber with a hole in the outer wall to compensate for a drop in the ambient pressure, for example at high altitudes.

Landscapes

  • Ink Jet (AREA)
  • Pens And Brushes (AREA)
EP02013465A 2001-07-10 2002-06-14 Cartouche d'encre comportant une chambre vide Expired - Lifetime EP1275509B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10133465 2001-07-10
DE10133465A DE10133465B4 (de) 2001-07-10 2001-07-10 Tintenpatrone mit Leerkammer

Publications (3)

Publication Number Publication Date
EP1275509A2 true EP1275509A2 (fr) 2003-01-15
EP1275509A3 EP1275509A3 (fr) 2003-08-20
EP1275509B1 EP1275509B1 (fr) 2006-10-11

Family

ID=7691264

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02013465A Expired - Lifetime EP1275509B1 (fr) 2001-07-10 2002-06-14 Cartouche d'encre comportant une chambre vide

Country Status (3)

Country Link
EP (1) EP1275509B1 (fr)
AT (1) ATE342168T1 (fr)
DE (2) DE10133465B4 (fr)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0640482A2 (fr) 1993-08-23 1995-03-01 Canon Kabushiki Kaisha Cartouche d'encre échangeable

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6247803B1 (en) * 1983-10-13 2001-06-19 Seiko Epson Corporation Ink jet recording apparatus and method for replenishing ink in the tank cartridge
JP3513979B2 (ja) * 1994-09-16 2004-03-31 セイコーエプソン株式会社 インクジェットプリンタ用インクカートリッジ
DE69031541T2 (de) * 1989-10-20 1998-03-05 Canon Kk Farbstrahlgerät und Kassette mit Tintenvorratsbehälter auf diesem Gerät aufstellbar
US6007191A (en) * 1993-08-19 1999-12-28 Fuji Xerox Co., Ltd. Ink supply unit
US6168266B1 (en) * 1995-09-29 2001-01-02 Canon Kabushiki Kaisha Ink tank cartridge, a manufacturing method thereof and a packaging structure of the ink tank cartridge
EP0827836B1 (fr) * 1996-02-21 2005-05-04 Seiko Epson Corporation Cartouche d'encre
JP3287791B2 (ja) * 1997-07-30 2002-06-04 キヤノン株式会社 液体収容室を有する液体収容容器への液体充填方法及び液体充填装置
EP1300248B1 (fr) * 1998-03-30 2008-10-22 Brother Kogyo Kabushiki Kaisha Cartouche d'encre et procédé de détection du volume d'encre restant

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0640482A2 (fr) 1993-08-23 1995-03-01 Canon Kabushiki Kaisha Cartouche d'encre échangeable

Also Published As

Publication number Publication date
DE50208383D1 (de) 2006-11-23
EP1275509A3 (fr) 2003-08-20
ATE342168T1 (de) 2006-11-15
DE10133465A1 (de) 2003-01-30
EP1275509B1 (fr) 2006-10-11
DE10133465B4 (de) 2006-10-05

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