WO2019151971A1 - Système d'impression - Google Patents

Système d'impression Download PDF

Info

Publication number
WO2019151971A1
WO2019151971A1 PCT/US2018/015814 US2018015814W WO2019151971A1 WO 2019151971 A1 WO2019151971 A1 WO 2019151971A1 US 2018015814 W US2018015814 W US 2018015814W WO 2019151971 A1 WO2019151971 A1 WO 2019151971A1
Authority
WO
WIPO (PCT)
Prior art keywords
print agent
fluid communication
communication channel
printing system
capillary material
Prior art date
Application number
PCT/US2018/015814
Other languages
English (en)
Inventor
Kevin Dooley
SeeMun PHOONG
Martin Purcell
Original Assignee
Hewlett-Packard Development Company, L.P.
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 Hewlett-Packard Development Company, L.P. filed Critical Hewlett-Packard Development Company, L.P.
Priority to PCT/US2018/015814 priority Critical patent/WO2019151971A1/fr
Publication of WO2019151971A1 publication Critical patent/WO2019151971A1/fr

Links

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
    • 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
    • B41J2/1707—Conditioning of the inside of ink supply circuits, e.g. flushing during start-up or shut-down
    • 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
    • B41J2/17506—Refilling of the cartridge
    • B41J2/17509—Whilst mounted in the printer
    • 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

  • Printing systems for use in a continuous print agent supply environment comprise a print head assembly (PHA), a reservoir containing a print agent and a tube to provide fluid communication between the reservoir and the PHA.
  • PHA print head assembly
  • the tube that connects the PHA and the reservoir should be primed with print agent.
  • the priming occurs by expelling print agent from the PHA into a receptacle arranged to receive ejected print agent.
  • a negative back-pressure is created in the PHA, which draws print agent through the tube from the reservoir.
  • a volume of print agent is irrecoverably lost from a reservoir of the PHA for the priming process, thereby effectively reducing the lifespan of the PHA.
  • priming would need to be carried out again when the PHA and tube are reconnected. This may mean that a further volume of print agent is lost, effectively reducing the lifespan of the PHA yet further.
  • FIG. 1 is an illustration of a printing system of the present disclosure.
  • Implementations discussed herein include a printing system for a continuous ink supply system.
  • the printing system may also be employed in a 3D print environment, i.e. where the print agent may be of a type other than ink.
  • FIG. 1 is an illustration of a printing system 10 of the present disclosure, which comprises a print head assembly 12, comprising a printhead 14 and a first print agent supply 16, and a second print agent supply 18.
  • the first print agent supply 16 comprises, in the illustrated example, a four compartment foam storage structure defined by three partition walls 20, 22 and 24, which extend vertically upward from a bottom wall section 26 and which are surrounded by outer side walls 28 and 30.
  • the outer side walls 28 and 30 include offset flange portions 32 and 34, which rest on inwardly extending sections 36 and 38 of a mating outer housing wall 40.
  • a top cover plate 42 is received at the top of the outer walls 28 and 30 for providing a top closure for the print head assembly 12.
  • the bottom wall section 26 comprises, on a downwardly facing surface thereof, the printhead 14.
  • the four ink storage compartments within the first print agent supply 16 are for storing yellow ink, magenta ink, cyan ink, and black ink respectively (identified by the letters Y, M, C, and K respectively).
  • Each compartment comprises a capillary material (e.g. a foam) to provide a porous storage medium for the various coloured inks.
  • the first print agent supply 16 can hold a volume of print agent(s) (e.g. ink(s)) and each storage compartment comprises foam therein to hold a volume of print agent of a particular type.
  • Each of the storage compartments within the first print agent supply 16 is connected respectively by way of a port 44, 46, 48, 50 located in a wall of each of these four compartments to fluid communication channels 52, 54, 56 and 58 respectively.
  • These fluid communication channels can, in some examples, comprise flexible tubes.
  • the fluid communication channels can be connected as shown through a common fluid communication channel support and spacer member 60, which serves to maintain the four fluid communication channels 52, 54, 56 and 58 in place and separated one from another as they extend respectively to four ink supply sections 62, 64, 66 and 68 within second print agent supply 18.
  • Each of these ink supply sections 62, 64, 66, and 68 can receive a replaceable ink bottle 70, 72, 74 and 76, respectively and each ink bottle is provided with a rupturable seal 80, which is opened when brought into contact with a central upstanding member 82 of each supply section 62, 64, 66 and 68.
  • a rupturable seal 80 which is opened when brought into contact with a central upstanding member 82 of each supply section 62, 64, 66 and 68.
  • ink in the bottle 70 for example, will flow into section 62, which will fill up with cyan coloured ink, and similar action will occur for the other colours (and black and/or clear) in the other supply sections 64, 66 and 68 as indicated.
  • a pumping action of the printhead 14 induces a negative pressure in the capillary material in the storage compartments, which will cause the ink from the ink supply sections 62, 64, 66 and 68 to be drawn through their associated fluid communication channels 50, 52, 54 and 56.
  • a negative head in each of the storage compartments will increase and will produce, by capillary action, a pulling of the print agent from the supply vessels 62, 64, 66 and 68 and through the various fluid communication channels 52, 54, 56 and 58, respectively, and into the storage compartments of the first print agent supply 16. This action will continue until such time that the ink level in each of the four storage compartments is brought back up to a level such that the negative pressure at the printhead 14 is less than the static head difference between the printhead 38 and a liquid level in each of the reservoirs.
  • each of the fluid communication channels 52, 54, 56 and 58 comprises a capillary material therein.
  • the capillary material is denoted by way of reference numeral 84 in the figure.
  • the capillary material 84 comprises a material, which can comprise at least one of a fibre, foam or similar material.
  • the material is porous and, optionally, a polymer material. Examples of materials within the capillary material include PET fibres, Polyester, Polypropylene, and/or an EPDM/PET yarn.
  • the capillary material can be sheathed in a wrap material.
  • capillary material 84 can be employed depending upon the print agent type to be communicated from the second print agent supply 18 to the first print agent supply 16.
  • pore size, pore volume, pore spacing and/or pore density of a capillary material for conveying a print agent of a first type may differ from those of a capillary material for conveying a print agent of a second type.
  • a first colour ink may be of a different viscosity to that of a second colour ink. Therefore, the capillary material in the fluid communication channel for the first colour ink may be different to the capillary material in the fluid communication channel for the second colour ink.
  • a printing system employing capillary material in fluid communication channels in the manner described above, when the fluid communication channels are coupled to their associated sections of the second print agent supply, contact of print agents in the sections of the second print agent supply with the capillary material will result in the print agents being drawn into their associated fluid communication channels.
  • the nature of the capillary material causes the print agents to be drawn through the fluid communication channels (i.e. a“wicking” action) to the first print agent supply 16.
  • the printing system is effectively “primed” without the need for ejecting ink. Therefore ink loss in a priming process may be inhibited, because no priming process may be required.
  • expected life of ink in the print head assembly of the example previous printing system is:
  • the expected life of ink in the print head assembly could be extended, through use of a printing system according to the present disclosure, as follows:
  • a volume of ink can be introduced to the capillary material allowing it to prime over time, i.e. the fluid communication channels could be pre-primed prior to installation, or first use, of the printing system. This may allow the system to become fully primed over a period of time, e.g. before an end-user receives the printer.
  • the printing system according to the present disclosure may allow the life of a print head assembly to be extended, because there is no ink loss from the due to priming (i.e. no priming may be needed).
  • the printing system according to the present disclosure may allow a print head assembly to be de-coupled from the printing system (e.g. for maintenance) without requiring additional features to prevent print agent leaking from the system and/or to prevent de priming. This is because the capillary material in the fluid communication channel can retain print agent regardless of the state of the print head assembly (i.e. coupled or uncoupled).

Landscapes

  • Ink Jet (AREA)

Abstract

L'invention concerne un système d'impression, qui comprend une première alimentation en agent d'impression comprenant en son sein une matière capillaire pour contenir un volume d'agent d'impression, la première alimentation en agent d'impression étant en communication fluidique avec une pluralité d'éléments d'éjection d'agent d'impression d'une tête d'impression. Le système d'impression comprend également une seconde alimentation en agent d'impression, pour contenir un volume d'agent d'impression, en amont de la première alimentation en agent d'impression. Le système d'impression comprend également un canal de communication fluidique permettant d'assurer une communication fluidique entre la seconde alimentation en agent d'impression et la première alimentation en agent d'impression, le canal de communication fluidique comprenant en son sein une matière capillaire.
PCT/US2018/015814 2018-01-30 2018-01-30 Système d'impression WO2019151971A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/US2018/015814 WO2019151971A1 (fr) 2018-01-30 2018-01-30 Système d'impression

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/US2018/015814 WO2019151971A1 (fr) 2018-01-30 2018-01-30 Système d'impression

Publications (1)

Publication Number Publication Date
WO2019151971A1 true WO2019151971A1 (fr) 2019-08-08

Family

ID=61224548

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2018/015814 WO2019151971A1 (fr) 2018-01-30 2018-01-30 Système d'impression

Country Status (1)

Country Link
WO (1) WO2019151971A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2023146534A1 (fr) * 2022-01-28 2023-08-03 Hewlett-Packard Development Company, L.P. Ensembles d'éjection de fluide d'impression

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0536980A2 (fr) * 1991-10-10 1993-04-14 Ing. C. Olivetti & C., S.p.A. Méthode et dispositif pour le réapprovisionnement en encre d'une tête à jet d'encre
EP0605183A2 (fr) * 1992-12-28 1994-07-06 OLIVETTI-CANON INDUSTRIALE S.p.A. Dispositif pour tenir des cartouches et les maintenir en état d'alimentation d'encre dans une imprimante à jet d'encre
US5453771A (en) * 1992-07-03 1995-09-26 Citizen Watch Co., Ltd. Ink tank
US6048054A (en) * 1996-08-29 2000-04-11 Mitsubishi Pencil Kabushiki Kaisha Ink replenishing apparatus and ink replenishing method for ink-jet printing ink cartridge
EP1615775A1 (fr) * 2003-04-17 2006-01-18 Telecom Italia S.p.A. Dispositif de stockage et de remplissage simultane d'une cartouche d'une tete d'impression en couleur avec des encres de differentes couleurs

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0536980A2 (fr) * 1991-10-10 1993-04-14 Ing. C. Olivetti & C., S.p.A. Méthode et dispositif pour le réapprovisionnement en encre d'une tête à jet d'encre
US5453771A (en) * 1992-07-03 1995-09-26 Citizen Watch Co., Ltd. Ink tank
EP0605183A2 (fr) * 1992-12-28 1994-07-06 OLIVETTI-CANON INDUSTRIALE S.p.A. Dispositif pour tenir des cartouches et les maintenir en état d'alimentation d'encre dans une imprimante à jet d'encre
US6048054A (en) * 1996-08-29 2000-04-11 Mitsubishi Pencil Kabushiki Kaisha Ink replenishing apparatus and ink replenishing method for ink-jet printing ink cartridge
EP1615775A1 (fr) * 2003-04-17 2006-01-18 Telecom Italia S.p.A. Dispositif de stockage et de remplissage simultane d'une cartouche d'une tete d'impression en couleur avec des encres de differentes couleurs

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2023146534A1 (fr) * 2022-01-28 2023-08-03 Hewlett-Packard Development Company, L.P. Ensembles d'éjection de fluide d'impression

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