WO2006015535A1 - Cartouche d’encre a pression constante - Google Patents

Cartouche d’encre a pression constante Download PDF

Info

Publication number
WO2006015535A1
WO2006015535A1 PCT/CN2005/001089 CN2005001089W WO2006015535A1 WO 2006015535 A1 WO2006015535 A1 WO 2006015535A1 CN 2005001089 W CN2005001089 W CN 2005001089W WO 2006015535 A1 WO2006015535 A1 WO 2006015535A1
Authority
WO
WIPO (PCT)
Prior art keywords
ink
chamber
constant pressure
cavity
valve
Prior art date
Application number
PCT/CN2005/001089
Other languages
English (en)
Chinese (zh)
Inventor
Qingguo Xiao
Benyou Jin
Original Assignee
Print-Rite Unicorn Image Products Co., Ltd. Of Zhuhai
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 Print-Rite Unicorn Image Products Co., Ltd. Of Zhuhai filed Critical Print-Rite Unicorn Image Products Co., Ltd. Of Zhuhai
Publication of WO2006015535A1 publication Critical patent/WO2006015535A1/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
    • B41J2/17503—Ink cartridges
    • B41J2/17556—Means for regulating the pressure in the cartridge
    • 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

  • the present invention relates to an ink supply device for use with an ink jet printer, and more particularly to a constant pressure ink cartridge having an automatic constant pressure ink supply structure. Background technique
  • the Chinese Patent Application Specification No. CN1358137A discloses a positioning device for an ink cartridge which is provided on one side of the ink cartridge housing to be mounted on a printer.
  • the positioning device includes a pin hole provided on one side of the housing for mounting and positioning. The pin fits to position the ink cartridge to ensure that the ink supply port is stably docked with the printer.
  • the ink cartridge has a gas-tight box with a flexible ink bag. In order to allow ink to enter the printer, there must be an air passage that supplies air pressure between the casing and the bag. The liquid is supplied to the height required by the printhead to achieve constant pressure ink supply to the printhead.
  • the structure of the ink cartridge is relatively complicated and the processing cost is relatively high.
  • the object of the present invention is to design a constant pressure ink cartridge which has a simple structure and is capable of supplying ink to the print head at a substantially constant pressure by the structure of the ink cartridge itself after the height of the cartridge is fixed relative to the height of the print head; Design a constant pressure ink cartridge that can be opened by the airway when the machine is installed in place, and the airway can be closed by itself when the printer is removed.
  • the constant pressure ink cartridge provided by the present invention adopts a casing for accommodating ink and sealing, and a side wall of the casing has an ink supply port for supplying ink to the printing head after installation, and a side wall of the ink supply port. There is also a pin hole for inserting a positioning pin when the constant pressure ink cartridge is installed.
  • the casing has a partition wall separating the ink chamber into a first chamber and a second chamber, and the first chamber and the second chamber are connected through a hole provided at a lower portion of the partition wall.
  • the top of the first chamber is provided with an airway valve inside and outside the first cavity opened when the positioning pin is inserted.
  • Figure 1 is a schematic structural view of the present invention
  • Figure 2 is a structural view of the preferred embodiment
  • Figure 3 is a left side view of Figure 2;
  • Figure 4 is a cross-sectional view taken along line A-A of Figure 3;
  • Figure 5 is a cross-sectional view taken along line C-C of Figure 4.
  • Figure 6 is a partial enlarged view of D of Figure 5;
  • Figure 7 is a cross-sectional view taken along the line B-B of Figure 3;
  • Figure 8 is a partial enlarged view of E of Figure 7;
  • Figure 9 is a rear elevational view of Figure 2;
  • Figure 10 is an exploded view of the structure of Figure 2;
  • Figure 11 is an exploded view of the structure of Figure 9. detailed description
  • Figure 1 is a structural view taken along a side wall of the ink cartridge, the casing 4 being substantially rectangular in cross section.
  • An ink supply port 12 is disposed on the side wall, and an inlet 7 of the ink tube 6 is disposed at the lowest point of the second chamber 5.
  • An air passage valve 2 is disposed at the top of the first chamber 11, and the ink cartridge is loaded into the printer and then on the printer.
  • the positioning pin penetrates from the pin hole 1 and presses the airway valve 2 to open, and the gas can enter the first cavity 11 through the airway valve 2, the air hole 13 is an air hole of the airway valve cavity, and the hole 8 is the first cavity 11 A gas-liquid exchange hole with the second chamber 5.
  • the ink in the ink chamber has a level below the top of the first chamber 11 (including the airway valve chamber), i.e., the same level as the liquid level in the second chamber 5 of FIG.
  • the liquid level in the first chamber 11 is lowered, and the second chamber 5 keeps the liquid level unchanged due to the inaccessibility of the air, and the liquid level in the first chamber 11 drops to the map.
  • air enters the second chamber 5 from the hole 8 and at the same time, the ink in the second chamber 5 also flows into the first chamber 11 due to air entrapment, that is, the liquid level of the first chamber 11 rises to the hole.
  • the gas-liquid exchange process occurring at the hole 8 is stopped, and so on, that is, the constant pressure supply of the print head is started, and the ink supply pressure of the print head is maintained at the height of the head near the hole 8 until The ink in the second chamber 5 drops to the hole 8 Underneath, the constant pressure ink supply process ends, and the remaining ink is located at the lowest point of the second chamber 5 because the inlet 7 is located in the ink chamber, and the residual ink can be depleted as long as the ink cartridge is placed within the suction range of the print head.
  • FIG. 2 is a structural view of the open cover state, and some reinforcing ribs 15 are arranged in the casing 4 to improve the structural strength, one side wall behind The end is further provided with a concave hand-held position 16, and the outer surfaces of the upper and lower side walls of the box body 4 are further provided with a plurality of bumps 14 for cooperating with the printer, for conveniently arranging the ink cartridges and preventing the ink cartridges of different colors from being armored. .
  • an ink supply port 12 is disposed in the middle of the side wall of the ink cartridge, and a pin hole 1 is provided on the upper and lower sides of the ink supply port 12, respectively, and is coordinated with two positioning pins on the printer to ensure the print head and the ink supply port. 12 docking.
  • the ink in the ink chamber enters from the inlet 7 at the bottom of the chamber and is fed from the ink supply port 12 to the printhead via the ink tube 6.
  • the ink tube 6 of this example is formed on one side wall of the ink cartridge, and the lower end of the ink tube 6 extends laterally into the ink chamber to form an inlet 7.
  • a partition wall 10 is formed between the first chamber 11 and the second chamber 5 constituting the ink chamber, and the partition wall 10 also forms a spring valve chamber at the top of the first chamber 11 for supporting the air passage valve 2. .
  • the airway valve 2 is composed of a valve body 21, a sealing ring 22 and a spring 23.
  • the valve core 21 has a valve stem having a small diameter at the upper end and a large diameter at the lower end, and a valve cap at the lower end.
  • the valve stem and the spring are open.
  • the upper tapered hole is matched, the sealing ring 22 is located between the bonnet and the lower surface of the tapered hole, and the top end of the valve stem is located on the trajectory line of the positioning pin with respect to the insertion of the ink cartridge. Therefore, when the positioning pin is inserted, the spool 21 is pressed downward, that is, the air passage is opened. Valve 2, when the positioning pin is withdrawn, the spool 21 is lifted by the action of the spring 23, and the airway valve 2 is closed.
  • the ink tube 6 is formed on this side wall of the ink cartridge with a sealing plate 62 as described above for reasons of process considerations.
  • a sealing ring 17 is built in the ink supply port.
  • an ink supply passage for sealing to the outside is formed.
  • Two pin holes 1 are also provided on the side wall of the ink supply port 12 for ensuring accurate positioning of the ink supply port 12.
  • the upper pin hole 1 also has the function of pressing the airway valve spool 21 when the positioning pin is introduced. .
  • the ink tube 6 is composed of a groove 61 formed on the side wall, a sealing film 63, and a sealing plate.
  • the airway valve 2 can be changed from the vertical position of the above example to the transverse direction, so that the axis of the valve core 21 is coaxial with the positioning pin, thereby reducing the lateral direction during the docking process of the ink supply port. Force. Industrial applicability.
  • the invention eliminates the flexible bag, and the structure is greatly simplified.
  • the ink chamber is divided into the first cavity and the second cavity, and communicates through a hole in the lower part of the partition wall, so as to satisfy the basic constant pressure. Ink supply requirements.
  • an airway valve is arranged at the top of the first cavity, and the valve is opened only by the positioning pin on the printer when the machine is installed, and is used for the first cavity to communicate with the outside, so that the ink chamber that continuously consumes ink is replenished with gas.
  • the negative pressure in the ink chamber is lowered, and when the ink cartridge is removed from the printer, the valve can be automatically closed, which can effectively prevent the ink cartridge from being leaked after being taken out.

Abstract

L’invention est celle d’un dispositif de cartouche d’encre utilisé par une imprimante jet d’encre, notamment une cartouche d’encre munie d’une structure de distribution d’encre en pression constante et qui comprend un réservoir d’encre fermé. Le coté du réservoir est muni d’un port pour la distribution de l’encre à la tête d'impression et de trous d’épingle pour l’insertion des têtes d'impression lors de l’installation de la cartouche. Une séparation divise le réservoir en une première et une seconde chambre, l’une et l’autre communiquant via une ouverture dans la partie inférieure de la séparation. Dans la partie supérieure de la première chambre un clapet à air est activé lorsque les épingles sont insérées dans les trous d’épingle. Sa structure est simple, il peut fournir de l’encre en pression constante et prévenir les fuites d’encre lors du changement de cartouche.
PCT/CN2005/001089 2004-08-10 2005-07-21 Cartouche d’encre a pression constante WO2006015535A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN200420089591.6 2004-08-10
CNU2004200895916U CN2741774Y (zh) 2004-08-10 2004-08-10 恒压墨盒

Publications (1)

Publication Number Publication Date
WO2006015535A1 true WO2006015535A1 (fr) 2006-02-16

Family

ID=35429688

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2005/001089 WO2006015535A1 (fr) 2004-08-10 2005-07-21 Cartouche d’encre a pression constante

Country Status (3)

Country Link
CN (1) CN2741774Y (fr)
HK (1) HK1074970A2 (fr)
WO (1) WO2006015535A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2746053A3 (fr) * 2012-12-18 2018-03-28 Brother Kogyo Kabushiki Kaisha Cartouche d'encre

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020013836A1 (fr) 2018-07-13 2020-01-16 Hewlett-Packard Development Company, L.P. Alimentation en liquide d'impression
JP7000595B2 (ja) * 2018-07-13 2022-01-19 ヒューレット－パッカード デベロップメント カンパニー エル．ピー． 印刷液体サプライ
EP4140749A1 (fr) 2018-07-13 2023-03-01 Hewlett-Packard Development Company, L.P. Alimentation en liquide d'impression
CN111655497A (zh) 2018-07-13 2020-09-11 惠普发展公司，有限责任合伙企业 打印液体供应

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4628333A (en) * 1983-12-29 1986-12-09 Canon Kabushiki Kaisha Ink jet recording head and ink jet recorder
JPH08174858A (ja) * 1994-12-27 1996-07-09 Canon Inc インクカートリッジ
CN1185379A (zh) * 1996-12-17 1998-06-24 日本电气株式会社 墨盒
US5821964A (en) * 1996-07-24 1998-10-13 Dataproducts Corporation Cartridge for supplying liquid to a print head
US6000790A (en) * 1993-08-19 1999-12-14 Fuji Xerox Co., Ltd. Ink supply device
CN1358137A (zh) * 2000-01-21 2002-07-10 精工爱普生株式会社 打印装置用墨盒及喷墨式打印装置

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4628333A (en) * 1983-12-29 1986-12-09 Canon Kabushiki Kaisha Ink jet recording head and ink jet recorder
US6000790A (en) * 1993-08-19 1999-12-14 Fuji Xerox Co., Ltd. Ink supply device
JPH08174858A (ja) * 1994-12-27 1996-07-09 Canon Inc インクカートリッジ
US5821964A (en) * 1996-07-24 1998-10-13 Dataproducts Corporation Cartridge for supplying liquid to a print head
CN1185379A (zh) * 1996-12-17 1998-06-24 日本电气株式会社 墨盒
CN1358137A (zh) * 2000-01-21 2002-07-10 精工爱普生株式会社 打印装置用墨盒及喷墨式打印装置

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2746053A3 (fr) * 2012-12-18 2018-03-28 Brother Kogyo Kabushiki Kaisha Cartouche d'encre

Also Published As

Publication number Publication date
CN2741774Y (zh) 2005-11-23
HK1074970A2 (en) 2005-11-25

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