EP1757454A1 - Ink cartridge for printer - Google Patents

Ink cartridge for printer Download PDF

Info

Publication number
EP1757454A1
EP1757454A1 EP05757194A EP05757194A EP1757454A1 EP 1757454 A1 EP1757454 A1 EP 1757454A1 EP 05757194 A EP05757194 A EP 05757194A EP 05757194 A EP05757194 A EP 05757194A EP 1757454 A1 EP1757454 A1 EP 1757454A1
Authority
EP
European Patent Office
Prior art keywords
ink
printer
ink cartridge
tanks
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.)
Withdrawn
Application number
EP05757194A
Other languages
German (de)
French (fr)
Other versions
EP1757454A4 (en
Inventor
Junzhong Wu
Yi Zhou
Baoquan Chen
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.)
Ninestar Image Co Ltd
Original Assignee
Ninestar Image Co Ltd
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 Ninestar Image Co Ltd filed Critical Ninestar Image Co Ltd
Publication of EP1757454A1 publication Critical patent/EP1757454A1/en
Publication of EP1757454A4 publication Critical patent/EP1757454A4/en
Withdrawn legal-status Critical Current

Links

Images

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 utility model relates to an ink cartridge with ink tanks for an inkjet printer.
  • the first type is one using a sponge to store ink and controlling the printing with the capillary effect of the sponge. After the ink cartridge is used out, too much ink remains in the sponge, which causes a waste of ink, and is not environment-friendly, and also increases the cost.
  • the other type is a spongeless method, which uses a complicated design of an air intake system and a complicated ink cartridge structure, and thus includes too many parts and requires complex processes. Also, due to the height of the negative pressure control value being disposed and the design of the ink path, too much ink will be left.
  • the present invention is directed to provide an ink cartridge with ink tanks for a printer, which comprises a bottom case, a cover, and ink tanks. Inks are classified and stored into independent ink tanks, which is assembled in the bottom case. Each of the ink tanks includes a negative pressure mechanism for controlling a flow rate of the ink. Soft films are welded on both sides of an ink tank support, the inks are stored between the soft films, and a volume between the soft films is variable. During printing, with the consumption of the inks, the volume becomes smaller. The inks flow into an inkjet cavity through a one-way valve. A seal ring, a one-way valve core, and a spring are disposed at an ink outlet port below the inkjet cavity.
  • the ink tank does not have an air intake system, such that the air will not get into the ink tanks, and is isolated from the inks to prevent bubbles entering the ink outlet port.
  • the printing performance is stable and reliable, and the printing quality is improved.
  • FIG. 1 is a stereogram of the internal structure of an ink cartridge according to an embodiment of the present invention.
  • FIG. 2 is a schematic structural view of the ink tanks according to an embodiment of the present invention.
  • FIG. 3 is a schematic view of the leakage prevention mechanism of the ink tanks according to an embodiment of the present invention.
  • the present invention includes a bottom case 2, a cover 1, and an ink tank support 3.
  • Each color of ink is stored in an independent ink tank.
  • the ink tank includes a negative pressure mechanism, which is composed of a valve spring 4, a valve diaphragm 5, and a valve domed cap 6.
  • Soft films 7 are welded on both sides of the ink tank support, and inks are stored in an ink storage cavity 11.
  • the ink storage cavity 11 is formed by the ink tank support 3 and the soft films 7, and has a variable volume. During printing, with the consumption of the inks, the volume of the ink storage cavity becomes smaller. The inks in the ink storage cavity 11 flow into the negative pressure mechanism through an ink path 12, then flow into an inkjet cavity 13, and finally get into an ink outlet port 14.
  • the ink outlet port of the ink tank includes a leakage prevention mechanism, which is composed of an ink outlet port spring 8, a valve core 9, and a seal ring 10.

Landscapes

  • Ink Jet (AREA)

Abstract

An ink cartridge with ink tanks for a printer including a bottom case, a cover, and ink tanks is provided. Inks are classified and stored into independent ink tanks which are assembled in the bottom case. The ink tank includes a negative pressure mechanism for controlling a flow rate of the ink. Soft films are welded on both sides of an ink tank support. During the printing, the inks in the ink tanks flow through the negative pressure mechanism and get into an inkjet cavity. The ink tank does not have an air intake system, and a volume of the ink tank is changed by changing the shape of the soft films. Thus, the air is isolated from the inks in the ink tanks, and will not get into an ink outlet port.

Description

    Field of the Invention
  • The present utility model relates to an ink cartridge with ink tanks for an inkjet printer.
    • Description of Related Art
  • Currently, methods for controlling an inkjet amount of an ink cartridge with a seal ring at an ink outlet port of an inkjet printer are mainly classified into the following two types.
  • The first type is one using a sponge to store ink and controlling the printing with the capillary effect of the sponge. After the ink cartridge is used out, too much ink remains in the sponge, which causes a waste of ink, and is not environment-friendly, and also increases the cost.
  • The other type is a spongeless method, which uses a complicated design of an air intake system and a complicated ink cartridge structure, and thus includes too many parts and requires complex processes. Also, due to the height of the negative pressure control value being disposed and the design of the ink path, too much ink will be left.
    • SUMMARY OF THE INVENTION
  • The present invention is directed to provide an ink cartridge with ink tanks for a printer, which comprises a bottom case, a cover, and ink tanks. Inks are classified and stored into independent ink tanks, which is assembled in the bottom case. Each of the ink tanks includes a negative pressure mechanism for controlling a flow rate of the ink. Soft films are welded on both sides of an ink tank support, the inks are stored between the soft films, and a volume between the soft films is variable. During printing, with the consumption of the inks, the volume becomes smaller. The inks flow into an inkjet cavity through a one-way valve. A seal ring, a one-way valve core, and a spring are disposed at an ink outlet port below the inkjet cavity. The ink tank does not have an air intake system, such that the air will not get into the ink tanks, and is isolated from the inks to prevent bubbles entering the ink outlet port. During quick printing, the printing performance is stable and reliable, and the printing quality is improved.
    • BRIEF DESCRIPTION OF THE DRAWINGS
  • FIG. 1 is a stereogram of the internal structure of an ink cartridge according to an embodiment of the present invention.
  • FIG. 2 is a schematic structural view of the ink tanks according to an embodiment of the present invention.
  • FIG. 3 is a schematic view of the leakage prevention mechanism of the ink tanks according to an embodiment of the present invention.
    • DESCRIPTION OF EMBODIMENTS
  • The present invention is further illustrated in detail with an embodiment and the accompanying drawings.
  • As shown in FIG. 1, the present invention includes a bottom case 2, a cover 1, and an ink tank support 3. Each color of ink is stored in an independent ink tank. The ink tank includes a negative pressure mechanism, which is composed of a valve spring 4, a valve diaphragm 5, and a valve domed cap 6. Soft films 7 are welded on both sides of the ink tank support, and inks are stored in an ink storage cavity 11. The ink storage cavity 11 is formed by the ink tank support 3 and the soft films 7, and has a variable volume. During printing, with the consumption of the inks, the volume of the ink storage cavity becomes smaller. The inks in the ink storage cavity 11 flow into the negative pressure mechanism through an ink path 12, then flow into an inkjet cavity 13, and finally get into an ink outlet port 14.
  • The ink outlet port of the ink tank includes a leakage prevention mechanism, which is composed of an ink outlet port spring 8, a valve core 9, and a seal ring 10.

Claims (9)

  1. An ink cartridge with ink tanks for a printer, comprising:
    a bottom case;
    a cover;
    at least one ink tank, for storing a certain amount of ink, and assembled in the bottom case;
    wherein the ink tank comprises a negative pressure mechanism for controlling a flow rate of ink and preventing the ink leaking from a nozzle of a print head;
    wherein the ink tank have a support with soft films welded on both sides thereof, and the ink is stored between the soft films.
  2. The ink cartridge for a printer as claimed in claim 1, wherein the ink cartridge comprises independent ink tanks for various colors, and the independent ink tanks are replaceable.
  3. The ink cartridge for a printer as claimed in claim 1, wherein the ink in the ink tanks flows through the negative pressure mechanism and get into an inkjet cavity.
  4. The ink cartridge for a printer as claimed in claim 1, wherein a volume between the soft films on both sides of the ink tank support is variable, and during printing, with the consumption of the ink between the soft films, the volume between the soft films becomes smaller.
  5. The ink cartridge for a printer as claimed in claim 1, wherein the ink tank does not have an air intake system, such that the air is isolated from the inks in the ink tanks and will not get into an ink outlet port.
  6. The ink cartridge for a printer as claimed in claim 1, wherein the negative mechanism of the ink tank is a one-way valve mechanism.
  7. The ink cartridge for a printer as claimed in claim 1, wherein the soft films of the ink tank are plastic molded or thermal molded.
  8. The ink cartridge for a printer as claimed in claim 1, further comprising a leakage prevention mechanism.
  9. The ink cartridge for a printer as claimed in claim 8, wherein the leakage prevention mechanism comprises an ink outlet port spring, a valve core, and a seal ring.
EP05757194A 2004-06-15 2005-06-09 Ink cartridge for printer Withdrawn EP1757454A4 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CNU200420046929XU CN2744512Y (en) 2004-06-15 2004-06-15 Self-contained integrated printer print cartridges with ink bag
PCT/CN2005/000829 WO2005123396A1 (en) 2004-06-15 2005-06-09 Ink cartridge for printer

Publications (2)

Publication Number Publication Date
EP1757454A1 true EP1757454A1 (en) 2007-02-28
EP1757454A4 EP1757454A4 (en) 2009-07-22

Family

ID=35509529

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05757194A Withdrawn EP1757454A4 (en) 2004-06-15 2005-06-09 Ink cartridge for printer

Country Status (4)

Country Link
EP (1) EP1757454A4 (en)
JP (1) JP2008502502A (en)
CN (1) CN2744512Y (en)
WO (1) WO2005123396A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107757131A (en) * 2017-09-28 2018-03-06 湖州天骊正隆电子科技有限公司 A kind of ink storage device of improved cartridge of ink-jet printer

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007051370A1 (en) * 2005-11-02 2007-05-10 Zhuhai Nine Star Electronic Science And Technology Co., Ltd. An ink cartridge with a detachable means
JP5327168B2 (en) * 2010-09-03 2013-10-30 セイコーエプソン株式会社 Tank unit, liquid ejection system with tank unit
JP5429425B2 (en) * 2013-07-23 2014-02-26 セイコーエプソン株式会社 Tank unit, liquid ejection system with tank unit
JP5621902B2 (en) * 2013-12-05 2014-11-12 セイコーエプソン株式会社 Tank unit, liquid ejection system with tank unit
JP2015027807A (en) * 2014-09-25 2015-02-12 セイコーエプソン株式会社 Tank unit and liquid ejection system with the same
CN112793307A (en) * 2019-11-13 2021-05-14 高鉴平 Ink bag
CN114161836B (en) * 2021-09-16 2023-03-28 河南印都数码科技有限公司 Ink-jet ink bag set for printer

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0519664A2 (en) * 1991-06-19 1992-12-23 Hewlett-Packard Company Spring-bag printer ink cartridge with volume indicator
EP1097814A2 (en) * 1999-11-05 2001-05-09 Seiko Epson Corporation Ink-jet recording apparatus
EP1199178A1 (en) * 2000-10-20 2002-04-24 Seiko Epson Corporation Ink cartridge for ink jet recording device
EP1223037A1 (en) * 2001-01-09 2002-07-17 Seiko Epson Corporation Ink jet recording apparatus and method of correcting calculation of ink consumed therein
US20020180845A1 (en) * 2001-04-25 2002-12-05 Barinaga Louis C. Over-molded regulator bag for an ink delivery system
EP1348556A1 (en) * 2002-03-28 2003-10-01 Brother Kogyo Kabushiki Kaisha Ink cartridge
EP1604830A1 (en) * 2003-03-18 2005-12-14 Seiko Epson Corporation Liquid jetting device

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3417434B2 (en) * 1995-01-05 2003-06-16 セイコーエプソン株式会社 Ink cartridge for inkjet printer
CN1280103C (en) * 2000-02-16 2006-10-18 精工爱普生株式会社 Cartriage and connecting assembly for ink-jet printer and ink-jet printer

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0519664A2 (en) * 1991-06-19 1992-12-23 Hewlett-Packard Company Spring-bag printer ink cartridge with volume indicator
EP1097814A2 (en) * 1999-11-05 2001-05-09 Seiko Epson Corporation Ink-jet recording apparatus
EP1199178A1 (en) * 2000-10-20 2002-04-24 Seiko Epson Corporation Ink cartridge for ink jet recording device
EP1223037A1 (en) * 2001-01-09 2002-07-17 Seiko Epson Corporation Ink jet recording apparatus and method of correcting calculation of ink consumed therein
US20020180845A1 (en) * 2001-04-25 2002-12-05 Barinaga Louis C. Over-molded regulator bag for an ink delivery system
EP1348556A1 (en) * 2002-03-28 2003-10-01 Brother Kogyo Kabushiki Kaisha Ink cartridge
EP1604830A1 (en) * 2003-03-18 2005-12-14 Seiko Epson Corporation Liquid jetting device

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO2005123396A1 *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107757131A (en) * 2017-09-28 2018-03-06 湖州天骊正隆电子科技有限公司 A kind of ink storage device of improved cartridge of ink-jet printer
CN107757131B (en) * 2017-09-28 2019-06-25 北京盛通印刷股份有限公司 A kind of ink storage device of improved cartridge of ink-jet printer

Also Published As

Publication number Publication date
EP1757454A4 (en) 2009-07-22
CN2744512Y (en) 2005-12-07
WO2005123396A1 (en) 2005-12-29
JP2008502502A (en) 2008-01-31

Similar Documents

Publication Publication Date Title
EP1757454A1 (en) Ink cartridge for printer
CN102285243B (en) Attachment device system
US7815298B2 (en) Ink cartridge for ink jet recording device
US7699452B2 (en) Ink cartridge and method of ink injection thereinto
US7219986B2 (en) Ink cartridge for ink-jet printer
US20170246879A1 (en) Liquid supply device, printing apparatus and liquid ejection system
AU2003200496A1 (en) Ink Cartridge and Method of Regulating Fluid Flow
CN202412917U (en) Ink box
CN101844455B (en) Method for infusing ink in ink box and ink box
US20070091128A1 (en) Ink cartridge for printer
US8371682B1 (en) Ink replenishing system for ink jet printers
CN201776988U (en) Backpressure type ink box
CN201677573U (en) Ink box of ink-jet printer
CN201419544Y (en) Negative pressure ink box
CN2920658Y (en) Ink cartridge for ink-jet printer
CN108215512B (en) A kind of ink-cases of printers plus method for ink
CN2759782Y (en) Ink cartridge for ink-jet printer
CN201530175U (en) Back pressure ink box
CN202480549U (en) Simple novel sponge-free ink jet printer print box
CN1699062A (en) Externally arranged ink cartridge of ink jet printer
CN200988336Y (en) General printer ink box
CN2905440Y (en) Ink cartridge for ink-jet printer
CN201257800Y (en) Ink cartridge for ink jet printer
CN201006650Y (en) Printer cartridge with collapsible ink tank
US11912040B2 (en) Replenishable liquid storage tank including backpressure application member, and image-forming apparatus provided with the same

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU MC NL PL PT RO SE SI SK TR

17P Request for examination filed

Effective date: 20061130

DAX Request for extension of the european patent (deleted)
A4 Supplementary search report drawn up and despatched

Effective date: 20090623

17Q First examination report despatched

Effective date: 20091113

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20100324