New! View global litigation for patent families

WO2005065294A2 - Drop ejection assembly - Google Patents

Drop ejection assembly

Info

Publication number
WO2005065294A2
WO2005065294A2 PCT/US2004/043577 US2004043577W WO2005065294A2 WO 2005065294 A2 WO2005065294 A2 WO 2005065294A2 US 2004043577 W US2004043577 W US 2004043577W WO 2005065294 A2 WO2005065294 A2 WO 2005065294A2
Authority
WO
Grant status
Application
Patent type
Prior art keywords
nozzle
ink
channel
opening
drop
Prior art date
Application number
PCT/US2004/043577
Other languages
French (fr)
Other versions
WO2005065294A3 (en )
Inventor
John C. Batterton
Andreas Bibl
Paul A. Hoisington
Steven H. Barss
Original Assignee
Dimatix, Inc.
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

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41JTYPEWRITERS; SELECTIVE PRINTING MECHANISMS, e.g. INK-JET PRINTERS, THERMAL PRINTERS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J2/00Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
    • B41J2/005Typewriters 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
    • B41J2/01Ink jet
    • B41J2/135Nozzles
    • B41J2/14Structure thereof only for on-demand ink jet heads
    • B41J2/14201Structure of print heads with piezoelectric elements
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41JTYPEWRITERS; SELECTIVE PRINTING MECHANISMS, e.g. INK-JET PRINTERS, THERMAL PRINTERS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J2/00Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
    • B41J2/005Typewriters 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
    • B41J2/01Ink jet
    • B41J2/135Nozzles
    • B41J2/14Structure thereof only for on-demand ink jet heads
    • B41J2/1433Structure of nozzle plates
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41JTYPEWRITERS; SELECTIVE PRINTING MECHANISMS, e.g. INK-JET PRINTERS, THERMAL PRINTERS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J2/00Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
    • B41J2/005Typewriters 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
    • B41J2/01Ink jet
    • B41J2/135Nozzles
    • B41J2/14Structure thereof only for on-demand ink jet heads
    • B41J2002/14475Structure thereof only for on-demand ink jet heads characterised by nozzle shapes or number of orifices per chamber

Abstract

A drop ejector includes a channel proximate a nozzle opening to control fluid flow.

Description

DROP EJECTION ASSEMBLY TECHNICAL FIELD This invention relates to ejecting drops.

BACKGROUND Inkjet printers are one type of apparatus for depositing drops on a substrate. Inkjet printers typically include an ink path from an ink supply to a nozzle path. The nozzle path terminates in a nozzle opening from which ink drops are ejected. Ink drop ejection is typically controlled by pressurizing ink in the ink path with an actuator, which may be, for example, a piezoelectric deflector, a thermal bubble jet generator, or an electrostatically deflected element. A typical print assembly has an array of ink paths with corresponding nozzle openings and associated actuators. Drop ejection from each nozzle opening can be independently controlled. In a drop-on-demand print assembly, each actuator is fired to selectively eject a drop at a specific pixel location of an image as the print assembly and a printing substrate are moved relative to one another. In high performance print assemblies, the nozzle openings typically have a diameter of 50 microns or less, e.g. around 25 microns, are separated at a pitch of 100-300 nozzles/inch, have a resolution of 100 to 3000 dpi or more, and provide drops with a volume of about 1 to 120 picoliters (pL) or less. Drop ejection frequency is typically 10 kHz or more. Hoisington et al. U.S. Patent No. 5,265,315, describes a print assembly that has a semiconductor body and a piezoelectric actuator. The body is made of silicon, which is etched to define ink chambers. Nozzle openings are defined by a separate nozzle plate, which is attached to the silicon body. The piezoelectric actuator has a layer of piezoelectric material, which changes geometry, or bends, in response to an applied voltage. The bending of the piezoelectric layer pressurizes ink in a pumping chamber located along the ink path. Piezoelectric ink jet print assemblies are also described in Fishbeck et al. U.S. Patent No. 4,825,227, Hine U.S. Patent No. 4,937,598, Moynihan et al. U.S. Patent No. 5,659,346 and Hoisington U.S. Patent No. 5,757,391, the entire contents of which are hereby incorporated by reference.

SUMMARY In an aspect, the invention features a drop ejector that includes a flow path in which fluid is pressurized to eject drops from a nozzle opening formed in a substantially planar substrate. Also formed in the substrate proximate the nozzle opening is a channel. The channel is spaced from the nozzle opening by a distance of about 20 % of a nozzle width or more. In another aspect, the invention features a method of fluid ejection that includes providing a drop ejector that includes a flow path in which fluid is pressurized for ejection through a nozzle opening formed in a substrate. Also formed in the substrate proximate the nozzle opening is a channel. The channel is spaced from the nozzle opening by a distance of about 20 % of a nozzle width or more. The method also includes providing a fluid that is wicked by capillary forces into the space defined by the channel and ejecting the fluid through the nozzle opening by pressurizing the fluid in the flow path. Other aspects or embodiments may include combinations of the features in the aspects above and/or one or more of the following. The nozzle opening is surrounded by the channel. The channel is in the shape of a circle. The channel extends radially from the nozzle opening. The channel has a width that is about twice the nozzle opening width or less. The channel has a width of about 100 microns or less. The channel is from about 2 micron to about 50 micron. The substrate is a silicon material. The planar substrate includes a plurality of nozzle openings and channels proximate the nozzle openings. The nozzle opening width is about 200 micron or less. The drop ejector includes a piezoelectric actuator. The fluid has a surface tension of about 20-50 dynes/cm. The fluid has a viscosity of about 1 to 40 centipoise. Embodiments may include one or more of the following advantages. Printhead operation is robust and reliable since waste ink about the face of the nozzle plate is controlled to reduce interference with drop formation and ejection. Drop velocity and trajectory straightness is maintained in high performance printheads in which large arrays of small nozzles must accurately eject ink to precise locations on a substrate. The channels control waste ink and permit desirable jetting characteristics with a variety of jetting fluids, such as inks with varying viscosity or surface tension characteristics, and heads with varying pressure characteristics at the nozzle openings. The channels are robust, do not require moving components, and can be economically implemented by machining, e.g. laser machining, or etching, e.g., in a semiconductor material such as a silicon material. Still further aspects, features, and advantages follow. For example, particular aspects include channel dimensions, characteristics and operating conditions described below. DESCRIPTION OF DRAWINGS Fig. 1 is a schematic of a drop ejection assembly. Fig. 2 is a perspective view of a nozzle plate, while Fig. 2A is an expanded view of region A in Fig. 2. Figs. 3-3C are cross-sectional views of a nozzle, taken along 3-3 of Fig.2A, illustrating drop ejection.

DETAILED DESCRIPTION Referring to Fig. 1, an inkjet apparatus 10 includes a reservoir 11 containing a supply of ink 12 and a passage 13 leading from the reservoir 11 to a pressure chamber 14. An actuator 15, e.g., a piezoelectric transducer, covers the pressure chamber 14. The actuator is operable to force ink from the pressure chamber 14 through a passage 16 leading to a nozzle opening 17 in an nozzle plate 18, causing a drop of ink 19 to be ejected from the nozzle 17 toward a substrate 20. During operation, the inkjet apparatus 10 and the substrate 20 can be moved relative to one another. For example, the substrate can be a continuous web that is moved between rolls 22 and 23. By selective ejection of drops from an array of nozzles 17 in nozzle plate 18, a desired image is produced on substrate 20. The inkjet apparatus also controls the operating pressure at the ink meniscus proximate the nozzle openings when the system is not ejecting drops. Variations in meniscus pressure can cause variation in drop volume or velocity which can lead to printing errors and weeping. In the embodiment illustrated, pressure control is provided by a vacuum source 30 such as a mechanical pump that applies a vacuum to the headspace 9 over the ink 12 in the reservoir 11. The vacuum is communicated through the ink to the nozzle opening 17 to prevent ink from weeping through the nozzle opening by force of gravity. A controller 32, e.g. a computer controller, monitors the vacuum over the ink in the reservoir 11 and adjusts the source 30 to maintain a desired vacuum in the reservoir. In other embodiments, a vacuum source is provided by arranging the ink reservoir below the nozzle openings to create a vacuum proximate the nozzle openings. An ink level monitor (not shown) detects the level of ink, which falls as ink is consumed during a printing operation and thus increases the vacuum at the nozzles. A controller monitors the ink level and refills the reservoir from a bulk container when ink falls below a desired level to maintain vacuum within a desired operation range. In other embodiments, in which the reservoir is located far enough below the nozzles that the vacuum of the meniscus overcomes the capillary force in the nozzle, the ink can be pressurized to maintain a meniscus proximate the nozzle openings. In embodiments, the vacuum is maintained at about 0.5 to about 10 inches of water. Referring to Figs. 2-2A, nozzle plate portion 40 includes a plurality of nozzle openings 42 formed in a substantially planar substrate 41. Also formed in substrate 41 proximate each nozzle opening 42 is a cleaning structure in the form of a channel 44. Channels 44 control stray ink on the nozzle plate that could affect nozzle performance. For example, during ink jetting, ink may end up collecting on the nozzle plate. Over time, ink can form puddles which cause printing errors. For example, puddles near the edge of a nozzle opening can effect the trajectory, velocity or volume of the ejected drops. Also, a puddle could become large enough so that it drips onto printing substrate 20 causing an extraneous mark. The puddle could also protrude far enough off the nozzle plate 40 surface that the printing substrate 20 comes into contact with it, causing a smear on the printing substrate 20. The channels 44 collect, localize and direct waste ink.

Referring particularly to Fig. 2A, channels 44 completely surround each nozzle opening 42 that is centered on platform area 43. Channels 44 are connected by radial channels 46 and 48 that emanate from channels 44, forming a network of connected channels that direct and hold stray fluid on the nozzle plate. Referring particularly to Fig. 3, a nozzle opening 42 with an adjacent channel 44 is illustrated before drop ejection. Referring to Figs. 3A and 3B, waste ink 38 deposits on platform area 43 and is drawn into channel 44 by capillary forces. Referring to Fig. 3C, waste ink 38 is contained and distributed about nozzle opening 42 by channel 44. Upon encountering radial channels 46 or 48, ink moves into the space defined by the radial channel and then moves under capillary action radially away from nozzle opening 42 and into the network of connected channels that direct and hold stray fluid (see Fig. 2). When the nozzle plate is oriented vertically, waste ink moves through the network of channels under the influence of both gravity and capillary action, macroscopically in a single direction. When the nozzle plate is oriented horizontally, a vacuum source or wicking material can be used to remove ink from the channels. The spacing, size and orientation of the channels are selected to control waste ink. In embodiments, the spacing, S, from an edge of the channel to an edge of the nozzle opening is between about 20 % of a nozzle width, WN, or more, e.g., 30 % or more, and about five times the nozzle width or less, e.g., three times the nozzle width or less. The width, Wc, and depth, D, of the channel is selected to prevent excessive pooling of ink on the nozzle surface and to allow fluid to be drawn into the space defined by the channel and retained by capillary forces. In embodiments, the channel width is between about twice the nozzle width or less and about 10 % of the nozzle width or more. In particular embodiments, the channel width, Wc, is, e.g., about 100 microns or less, e.g., 5-20 microns, and the channel depth, D, is, e.g., about 2-10 microns or more, e.g., 50 microns. In embodiments, the nozzle width WN is, e.g., about 200 microns or less, e.g., 25-100 microns and the spacing S from the nozzle opening to the edge of the channel is, e.g., 40 microns or greater, e.g., 100 microns. In embodiments, the nozzle pitch is about 25 nozzles/inch or more, e.g., about 300 nozzles/inch, the ink drop volume is about 1 to 70 pL and the fluid is pressurized by a piezoelectric actuator. In embodiments, the jetting fluid has a viscosity of about 1 to 40 centipoise and a surface tension of about 20-50 dynes/cm. In embodiments, the jetting fluid is ink. In embodiments, the channels can include a wicking material and/or a nonwetting coating (e.g., TEFLON ' fiuoropolymer) can be applied to the nozzle plate surface between the nozzle and the channel. The channel network can also be in communication with a vacuum source (not shown). Waste ink can be returned to the main ink supply or to a separate suction system. In embodiments, the orientation of the channel is circular. In other embodiments, the orientation of the channel is sinuous. The channels and/or the nozzle opening in any of the above described embodiments can be formed by machining, electroforming, laser ablation, and chemical or plasma etching. The channels can also be formed by molding, e.g., injection molded plastic channels. In embodiments, the channel, nozzle opening, and pressure chamber are formed in a common body. The body can be a metal, carbon or an etchable material such as silicon material, e.g., silicon or silicon dioxide. Forming printhead components using etching techniques is further described in

U.S.Serial No. 10/189,947, filed July 3, 2002, and U.S. Serial No. 60/510,459, filed October 10, 2003, the entire contents of each are hereby incorporated by reference. The channels can be used in combination with other waste fluid control features such as apertures described in U.S. Serial Number 10/749,829, filed December 30, 2003, wells as described in U.S. Serial Number 10/749,622, filed December 30, 2003 and/or projections as described in U.S. Serial Number 10/749,816, filed December 30, 2003. For example, a series of projections can be included on the nozzle face proximate the channels. In embodiments, the drop ejection system can be utilized to eject fluids other than ink. For example, the deposited droplets may be a UN or other radiation curable material or other material, for example, chemical or biological fluids, capable of being delivered as drops. For example, the apparatus described could be part of a precision dispensing system. The actuator can be an electromechanical or thermal actuator. The cleaning structures can be combined with a manual or automatic washing and wiping system in which a cleaning fluid is applied to the nozzle plate and wiped clean. The cleaning structures can collect cleaning fluid and debris rather than j etted waste ink. Still other embodiments are within the scope of the following claims.

Claims

WHAT IS CLAIMED IS:
1. A drop ejector, comprising: a flow path in which fluid is pressurized to eject drops from a nozzle opening formed in a substantially planar substrate, and a channel formed in the substrate proximate the nozzle opening, the channel being spaced from the nozzle opening by a distance of about 20 % of a nozzle width or more.
2. The drop ejector of claim 1 wherein the nozzle opening is surrounded by the channel.
3. The drop ejector of claim 2 wherein the channel is in the shape of a circle.
4. The drop ejector of claim 1 wherein the channel extends radially from the nozzle opening.
5. The drop ejector of claim 1 wherein the channel has a width that i s about twice the nozzle opening width or less.
6. The drop ejector of claim 1 wherein the channel has a width of about 100 microns or less.
7. The drop ejector of claim 1 wherein a depth of the channel is from about 2 micron to about 50 micron.
8. The drop ejector of claim 1 wherein the substrate is a silicon material.
9. The drop ejector of claim 1 wherein the planar substrate includes a plurality of nozzle openings and channels proximate the nozzle openings.
10. The drop ejector of claim 1 wherein the nozzle opening width is about 200 micron or less.
11. The drop ejector of claim 1 including a piezoelectric actuator.
12. A method of fluid ejection, comprising: providing a drop ejector including a flow path in which fluid is pressurized for ejection through a nozzle opening formed in a substrate, and a channel formed in the substrate proximate the nozzle opening, the channel being spaced from the nozzle opening by a distance of about 20 % of the nozzle width or more; providing a fluid that is wicked by capillary forces into the space defined by said channel, and ejecting said fluid through said nozzle opening by pressurizing said fluid in said flow path.
13. The method of claim 12 wherein the fluid has a surface tension of about 20-50 dynes/cm.
14. The method of claim 12 wherein the fluid has a viscosity of about 1 to 40 centipoise.
PCT/US2004/043577 2003-12-30 2004-12-29 Drop ejection assembly WO2005065294A3 (en)

Priority Applications (8)

Application Number Priority Date Filing Date Title
US10749833 US7303259B2 (en) 2003-12-30 2003-12-30 Drop ejection assembly
US10749829 US7237875B2 (en) 2003-12-30 2003-12-30 Drop ejection assembly
US10/749,622 2003-12-30
US10/749,833 2003-12-30
US10749622 US7168788B2 (en) 2003-12-30 2003-12-30 Drop ejection assembly
US10749816 US7121646B2 (en) 2003-12-30 2003-12-30 Drop ejection assembly
US10/749,829 2003-12-30
US10/749,816 2003-12-30

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2006547448A JP2007516876A (en) 2003-12-30 2004-12-29 Droplet ejection assembly
KR20067015516A KR101220272B1 (en) 2003-12-30 2004-12-29 Drop ejection assembly
EP20040815609 EP1706269B1 (en) 2003-12-30 2004-12-29 Drop ejection assembly

Publications (2)

Publication Number Publication Date
WO2005065294A2 true true WO2005065294A2 (en) 2005-07-21
WO2005065294A3 true WO2005065294A3 (en) 2005-11-17

Family

ID=34753903

Family Applications (3)

Application Number Title Priority Date Filing Date
PCT/US2004/043577 WO2005065294A3 (en) 2003-12-30 2004-12-29 Drop ejection assembly
PCT/US2004/043946 WO2005065378A3 (en) 2003-12-30 2004-12-29 Drop ejection assembly
PCT/US2004/043776 WO2005065331A3 (en) 2003-12-30 2004-12-29 Drop ejection assembly

Family Applications After (2)

Application Number Title Priority Date Filing Date
PCT/US2004/043946 WO2005065378A3 (en) 2003-12-30 2004-12-29 Drop ejection assembly
PCT/US2004/043776 WO2005065331A3 (en) 2003-12-30 2004-12-29 Drop ejection assembly

Country Status (4)

Country Link
EP (4) EP2415606A3 (en)
JP (4) JP2007516876A (en)
KR (3) KR101154554B1 (en)
WO (3) WO2005065294A3 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2221181A1 (en) 2009-02-18 2010-08-25 Xerox Corporation Waste phase change ink recycling
FR2968597A1 (en) * 2010-12-13 2012-06-15 Centre Nat Rech Scient Inkjet device having fluid extracting means and inkjet METHOD
EP3045231A4 (en) * 2013-09-09 2017-04-19 Musashi Eng Inc Nozzle and liquid material discharge device provided with said nozzle

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4665660B2 (en) * 2005-08-19 2011-04-06 セイコーエプソン株式会社 The nozzle plate manufacturing method thereof, and a droplet discharge head and a droplet discharging device
JP5764312B2 (en) * 2010-11-05 2015-08-19 富士フイルム株式会社 The method of cleaning an ink jet recording apparatus and the nozzle plate
US8517518B2 (en) 2010-11-09 2013-08-27 Canon Kabushiki Kaisha Recording apparatus and liquid ejection head
JP5863337B2 (en) * 2011-08-25 2016-02-16 キヤノン株式会社 Ink-jet recording head
JP6193442B2 (en) * 2016-05-06 2017-09-06 武蔵エンジニアリング株式会社 Liquid material discharge device

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4413268A (en) 1980-12-20 1983-11-01 U.S. Philips Corporation Jet nozzle for an ink jet printer
EP0960733A2 (en) 1992-10-19 1999-12-01 Canon Kabushiki Kaisha Ink jet print head and ink jet printing apparatus provided with said ink jet print head
US6132028A (en) 1998-05-14 2000-10-17 Hewlett-Packard Company Contoured orifice plate of thermal ink jet print head
EP1293343A2 (en) 2001-09-12 2003-03-19 Canon Kabushiki Kaisha Liquid discharge recording head and method for manufacturing the same
WO2004067280A2 (en) 2003-01-28 2004-08-12 Hewlett-Packard Development Company L.P. Fluid ejection head

Family Cites Families (35)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0011053B1 (en) * 1978-10-30 1983-09-07 IPM - Industria Politecnica Meridionale Method for obtaining a credit card having an anisotropic, uniaxial magnetization and credit card obtained thereby
GB2061831B (en) * 1979-11-07 1984-02-29 Matsushita Electric Ind Co Ltd Ink jet writing head with spacer in capillary chamber
JPH024429B2 (en) * 1980-10-02 1990-01-29 Seiko Epson Corp
JPH0471712B2 (en) * 1981-01-30 1992-11-16 Data Products Corp
US4459601A (en) * 1981-01-30 1984-07-10 Exxon Research And Engineering Co. Ink jet method and apparatus
JPS5995157A (en) * 1982-11-23 1984-06-01 Yokogawa Hewlett Packard Ltd Head for bubble driven ink jet printer
US4528996A (en) * 1983-12-22 1985-07-16 The Mead Corporation Orifice plate cleaning system
JPS61115644U (en) * 1984-12-28 1986-07-22
US4613875A (en) * 1985-04-08 1986-09-23 Tektronix, Inc. Air assisted ink jet head with projecting internal ink drop-forming orifice outlet
JPS6219247A (en) * 1985-07-16 1987-01-28 Toray Ind Inc Method for eliminating colloidal substance
JPS62150145U (en) * 1986-03-18 1987-09-22
US4825227A (en) 1988-02-29 1989-04-25 Spectra, Inc. Shear mode transducer for ink jet systems
US4992802A (en) * 1988-12-22 1991-02-12 Hewlett-Packard Company Method and apparatus for extending the environmental operating range of an ink jet print cartridge
US4937598A (en) 1989-03-06 1990-06-26 Spectra, Inc. Ink supply system for an ink jet head
US5265315A (en) 1990-11-20 1993-11-30 Spectra, Inc. Method of making a thin-film transducer ink jet head
JPH05155028A (en) * 1991-12-04 1993-06-22 Ricoh Co Ltd Ink jet head
US5659346A (en) 1994-03-21 1997-08-19 Spectra, Inc. Simplified ink jet head
US5604521A (en) * 1994-06-30 1997-02-18 Compaq Computer Corporation Self-aligning orifice plate for ink jet printheads
JP3152243B2 (en) * 1994-07-20 2001-04-03 スペクトラ インコーポレイテッド High-frequency drop-on-demand ink jet systems
JPH08230185A (en) * 1995-03-01 1996-09-10 Brother Ind Ltd Ink jet device
JP3315589B2 (en) * 1995-06-21 2002-08-19 キヤノン株式会社 An ink tank and a recording apparatus including the
JP3386099B2 (en) * 1995-07-03 2003-03-10 セイコーエプソン株式会社 An ink jet recording head nozzle plate, which manufacturing method, and an ink jet recording head
EP0943441B1 (en) * 1997-06-04 2005-10-26 Seiko Epson Corporation Ink jet recording head and ink jet recorder
US6264307B1 (en) * 1997-07-15 2001-07-24 Silverbrook Research Pty Ltd Buckle grill oscillating pressure ink jet printing mechanism
US6235212B1 (en) * 1997-07-15 2001-05-22 Silverbrook Research Pty Ltd Method of manufacture of an electrostatic ink jet printer
US5853861A (en) * 1997-09-30 1998-12-29 E. I. Du Pont De Nemours And Company Ink jet printing of textiles
GB9816143D0 (en) * 1998-07-25 1998-09-23 Markem Tech Ltd Printing apparatus
US6267464B1 (en) * 1998-12-28 2001-07-31 Eastman Kodak Company Self cleaning ink jet printhead cartridges
US6283575B1 (en) * 1999-05-10 2001-09-04 Eastman Kodak Company Ink printing head with gutter cleaning structure and method of assembling the printer
JP2001038917A (en) * 1999-07-29 2001-02-13 Casio Comput Co Ltd Ink jet printer
JP2001212966A (en) * 2000-02-04 2001-08-07 Seiko Epson Corp Hydrophilic structure and ink-jet recording head
JP3501083B2 (en) * 2000-03-21 2004-02-23 富士ゼロックス株式会社 Nozzle and method for manufacturing ink jet recording heads
JP2002187295A (en) * 2000-12-22 2002-07-02 Hitachi Koki Co Ltd Ink jet print head and method for sweeping waste ink
DE10202465A1 (en) * 2001-03-16 2002-10-02 Benq Corp Ink tank with an elastic deformation device
US6637862B2 (en) * 2002-02-08 2003-10-28 Illinois Tool Works, Inc. Maintenance module for fluid jet device

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4413268A (en) 1980-12-20 1983-11-01 U.S. Philips Corporation Jet nozzle for an ink jet printer
EP0960733A2 (en) 1992-10-19 1999-12-01 Canon Kabushiki Kaisha Ink jet print head and ink jet printing apparatus provided with said ink jet print head
US6132028A (en) 1998-05-14 2000-10-17 Hewlett-Packard Company Contoured orifice plate of thermal ink jet print head
EP1293343A2 (en) 2001-09-12 2003-03-19 Canon Kabushiki Kaisha Liquid discharge recording head and method for manufacturing the same
WO2004067280A2 (en) 2003-01-28 2004-08-12 Hewlett-Packard Development Company L.P. Fluid ejection head

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP1706269A2

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2221181A1 (en) 2009-02-18 2010-08-25 Xerox Corporation Waste phase change ink recycling
US8136934B2 (en) 2009-02-18 2012-03-20 Xerox Corporation Waste phase change ink recycling
FR2968597A1 (en) * 2010-12-13 2012-06-15 Centre Nat Rech Scient Inkjet device having fluid extracting means and inkjet METHOD
WO2012080878A1 (en) * 2010-12-13 2012-06-21 Centre National De La Recherche Scientifique Ink jet device comprising fluid extraction means, and associated ink jet method
EP3045231A4 (en) * 2013-09-09 2017-04-19 Musashi Eng Inc Nozzle and liquid material discharge device provided with said nozzle

Also Published As

Publication number Publication date Type
WO2005065331A3 (en) 2006-12-28 application
WO2005065378A2 (en) 2005-07-21 application
EP1706269A2 (en) 2006-10-04 application
KR20060127955A (en) 2006-12-13 application
WO2005065331A2 (en) 2005-07-21 application
EP1706270A2 (en) 2006-10-04 application
EP2415606A2 (en) 2012-02-08 application
KR101154554B1 (en) 2012-06-14 grant
EP1706266A2 (en) 2006-10-04 application
EP1706266B1 (en) 2011-12-28 grant
EP1706269B1 (en) 2012-06-13 grant
JP2007516878A (en) 2007-06-28 application
KR101222582B1 (en) 2013-01-16 grant
EP1706266A4 (en) 2009-08-12 application
JP2011161926A (en) 2011-08-25 application
EP1706269A4 (en) 2009-08-19 application
KR20060127957A (en) 2006-12-13 application
WO2005065378A3 (en) 2006-02-23 application
JP2007516876A (en) 2007-06-28 application
KR101220272B1 (en) 2013-01-09 grant
KR20060127954A (en) 2006-12-13 application
EP1706270A4 (en) 2009-08-19 application
JP4959013B2 (en) 2012-06-20 grant
WO2005065294A3 (en) 2005-11-17 application
JP2007516879A (en) 2007-06-28 application
EP2415606A3 (en) 2012-05-09 application
EP1706270B1 (en) 2011-12-28 grant

Similar Documents

Publication Publication Date Title
US5119116A (en) Thermal ink jet channel with non-wetting walls and a step structure
US5949454A (en) Ink jet head, ink jet head cartridge, ink jet recording apparatus and method for making ink jet head
US5793390A (en) Wet-wipe maintenance device for a full-width ink-jet printer
US6158843A (en) Ink jet printer nozzle plates with ink filtering projections
US6350016B1 (en) Liquid ejecting method and liquid ejecting head
US5138332A (en) Ink jet printing apparatus
US6283584B1 (en) Ink jet flow distribution system for ink jet printer
US20020021336A1 (en) Inkjet print head
US20050093919A1 (en) Image forming apparatus
US6582064B2 (en) Fluid ejection device having an integrated filter and method of manufacture
US6132033A (en) Inkjet print head with flow control manifold and columnar structures
US20060268067A1 (en) Fluid ejection device
US5412411A (en) Capping station for an ink-jet printer with immersion of printhead in ink
US6513896B1 (en) Methods of fabricating fit firing chambers of different drop weights on a single printhead
US6409318B1 (en) Firing chamber configuration in fluid ejection devices
US6502918B1 (en) Feature in firing chamber of fluid ejection device
US6132034A (en) Ink jet print head with flow control contour
WO2009143362A1 (en) Fluid droplet ejecting
US6402296B1 (en) High resolution inkjet printer
US7052122B2 (en) Printhead
US6488366B1 (en) Fluid ejecting device with anchor grooves
US20060152558A1 (en) Fluid drop ejection
US20040104959A1 (en) Printing apparatus
US6095639A (en) Method for preserving a liquid-ejection head, and liquid-ejection apparatus
US20020118260A1 (en) Inkjet printing system

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A2

Designated state(s): AE AG AL AM AT AU AZ BA BB BG BR BW BY BZ CA CH CN CO CR CU CZ DE DK DM DZ EC EE EG ES FI GB GD GE GH GM HR HU ID IL IN IS JP KE KG KP KR KZ LC LK LR LS LT LU LV MA MD MG MK MN MW MX MZ NA NI NO NZ OM PG PH PL PT RO RU SC SD SE SG SK SL SY TJ TM TN TR TT TZ UA UG US UZ VC VN YU ZA ZM ZW

AL Designated countries for regional patents

Kind code of ref document: A2

Designated state(s): GM KE LS MW MZ NA SD SL SZ TZ UG ZM ZW AM AZ BY KG KZ MD RU TJ TM AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LT LU MC NL PL PT RO SE SI SK TR BF BJ CF CG CI CM GA GN GQ GW ML MR NE SN TD TG

121 Ep: the epo has been informed by wipo that ep was designated in this application
WWE Wipo information: entry into national phase

Ref document number: 2006547448

Country of ref document: JP

WWW Wipo information: withdrawn in national office

Country of ref document: DE

NENP Non-entry into the national phase in:

Ref country code: DE

WWE Wipo information: entry into national phase

Ref document number: 2004815609

Country of ref document: EP

WWE Wipo information: entry into national phase

Ref document number: 1020067015516

Country of ref document: KR

WWE Wipo information: entry into national phase

Ref document number: 200480041390.1

Country of ref document: CN

WWP Wipo information: published in national office

Ref document number: 2004815609

Country of ref document: EP

WWP Wipo information: published in national office

Ref document number: 1020067015516

Country of ref document: KR