EP0956960B1 - Flüssigkeitsversorgungsvorrichtung - Google Patents

Flüssigkeitsversorgungsvorrichtung Download PDF

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Publication number
EP0956960B1
EP0956960B1 EP99303333A EP99303333A EP0956960B1 EP 0956960 B1 EP0956960 B1 EP 0956960B1 EP 99303333 A EP99303333 A EP 99303333A EP 99303333 A EP99303333 A EP 99303333A EP 0956960 B1 EP0956960 B1 EP 0956960B1
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EP
European Patent Office
Prior art keywords
ink
fluid
reactive
reservoir
printhead
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.)
Expired - Lifetime
Application number
EP99303333A
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English (en)
French (fr)
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EP0956960A3 (de
EP0956960A2 (de
Inventor
Mark S. Hickman
Ronald A. Askeland
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HP Inc
Original Assignee
Hewlett Packard Co
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Filing date
Publication date
Priority claimed from US09/069,616 external-priority patent/US6126268A/en
Priority claimed from US09/069,717 external-priority patent/US5976230A/en
Priority claimed from US09/183,538 external-priority patent/US6309062B1/en
Application filed by Hewlett Packard Co filed Critical Hewlett Packard Co
Publication of EP0956960A2 publication Critical patent/EP0956960A2/de
Publication of EP0956960A3 publication Critical patent/EP0956960A3/de
Application granted granted Critical
Publication of EP0956960B1 publication Critical patent/EP0956960B1/de
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
    • B41J2/17506—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
    • 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
    • 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
    • B41J2/21—Ink jet for multi-colour printing
    • B41J2/2107—Ink jet for multi-colour printing characterised by the ink properties
    • B41J2/2114—Ejecting specialized liquids, e.g. transparent or processing liquids

Definitions

  • This invention relates to ink-jet printers and the like and, more particularly, to a compact and high print speed ink-jet printing system having enhanced performance.
  • Ink-jet printing is a non-impact printing process in which droplets of ink are deposited on a print medium in a particular order to form alphanumeric characters, area-fills, and other patterns thereon.
  • ink-jet printing involves the ejection of fine droplets of ink onto a print medium such as paper, transparency film, or textiles in response to electrical signals generated by a microprocessor.
  • a print medium such as paper, transparency film, or textiles
  • thermally and piezoelectrically Two basic means currently available for achieving ink droplet ejection in ink-jet printing: thermally and piezoelectrically.
  • piezoelectric ink-jet printing the ink droplets are ejected due to the vibrations of piezoelectric crystals, again, in response to electrical signals generated by the microprocessor.
  • an ink-jet image is formed when a precise pattern of dots is ejected from a drop generating device known as a "printhead" onto a printing medium.
  • the typical ink-jet printhead has an array of precisely formed nozzles (or ejector portions) attached to a thermal ink-jet printhead substrate, such as silicon, nickel, or polyimide, or a combination thereof.
  • the substrate incorporates an array of firing chambers or drop ejector portions that receive liquid ink (colorants dissolved or dispersed in a solvent) through fluid communication with one or more ink reservoir.
  • Each firing chamber has a thin-film resistor, known as a "firing resistor,” located opposite the nozzle so ink can collect between the firing resistor and the nozzle.
  • the printhead is mounted on a carriage that travels along the width of the printer (otherwise referred to as the "scan axis").
  • thermal ink-jet printers such as DeskJet ® printers available from Hewlett-Packard Company, use inks of differing hues, namely, magenta, yellow, and cyan, and optionally black.
  • the particular set of colorants, e.g., dyes, used to make the inks is called a "primary dye set.”
  • a spectrum of colors, e.g., secondary colors, can be generated using different combinations of the primary dye set.
  • ink-jet printers utilizes disposable printheads in which the ink reservoirs are on-board the carriage, thus the term on-board or on-axis.
  • the reservoirs can be formed integrally with the printhead portions or they can be detachably connected thereto.
  • ink-jet printers employs ink reservoirs that are not located on the carriage, thus the term off-board or off-axis.
  • the reservoir intermittently replenishes the printhead with ink when the printhead travels to a stationary reservoir periodically for replenishment.
  • Another type makes use of a replaceable ink reservoir connected to the printhead by a fluid conduit. The printhead is replenished with ink through this fluid conduit.
  • the reservoirs may be individually (separate from other reservoirs) replaceable or the reservoirs can be formed as one integral reservoir portion, to be replaced as a unit.
  • printhead / ink reservoir configurations address different customer needs.
  • on-board designs provide for ease of use.
  • Printers using the off-board designs provide for fewer interruptions during printing jobs which require larger ink volumes, such as large format printing.
  • a successful ink set for color ink-jet printing should have the following properties: good crusting resistance, good stability, the proper viscosity, the proper surface tension, good color-to-color bleed alleviation, vibrant colors, sharp edges, rapid dry time, no negative reaction with the vehicle, consumer-safety, good permanence (e.g., smearfastness, lightfastness, waterfastness), and low strike-through.
  • the ink set should also be kogation-resistant.
  • bleed is defined to be the invasion of one color into another, once the ink is deposited on the print medium, as evidenced by a ragged border therebetween. Bleed occurs as colors mix-both on the surface of the paper substrate as well as within the substrate itself. The occurrence of bleed is especially problematic between a black ink and an adjacently-printed color ink because it is all the more visible. Hence, to achieve good print quality, bleed should be substantially reduced or eliminated such that borders between colors are clean and free from the invasion of one color into the other.
  • Several approaches have been utilized in controlling bleed between the printed images, many of which utilize reactive ink mechanisms.
  • One approach used for controlling bleed between the printed images is to employ a precipitating agent (e.g., a multi-valent metal salt) in one ink, and a colorant, preferably in the form of an organic dye having at least one and preferably two or more carboxyl and/or carboxylate groups, in another ink, preferably the black ink.
  • a precipitating agent e.g., a multi-valent metal salt
  • a colorant preferably in the form of an organic dye having at least one and preferably two or more carboxyl and/or carboxylate groups
  • the ink containing the precipitating agent brings about the precipitation of the colorant with the carboxyl/carboxylate group, thereby preventing the migration of the colorant in the other ink, thereby reducing bleed between the two adjacently printed areas.
  • Another method of reducing bleed between ink-jet inks involves the use of pH-sensitive dyes as disclosed in U.S. Patent No. 5,181,045 entitled “Bleed Alleviation Using pH-sensitive Dyes/Inks,” filed by Shields et al, and assigned to the same assignee as the present invention. It disclosed therein that an ink having a pH-sensitive dye, the "pH-sensitive ink,” would be prevented from bleeding into an adjacent ink having an appropriate pH, the "target ink.” More particularly, migration of the ink having the pH-sensitive dye is prevented by rendering the dye insoluble on the page by contact with the adjacent ink having the appropriate pH.
  • bleed is reduced or eliminated by using both the "pH-sensitive" ink as well as the "target” ink.
  • the black ink would employ the pH-sensitive dye and the pH of the color ink would be controlled in the practice of the invention, such that the black ink would be prevented from bleeding into the color ink.
  • the method of U.S. Patent No. 5,181,045 requires a pH differential of about 4 (or even 5) units to completely control bleed.
  • Patent 5,679,143 (entitled “Bleed Alleviation in Ink-jet Inks Using Acids Containing a Basic Functional Group,” filed by Looman and assigned to the same assignee as the present invention), further disclose methods for controlling bleed by forcing the precipitation of a pH-sensitive dye in one ink (the pH-sensitive ink) on the print medium by contacting the pH-sensitive dye with a second ink (the target ink) having an appropriate pH (either higher or lower than the first ink). Upon contact on the print medium, the pH-sensitive dye of the first ink becomes insoluble, thus bleeding less.
  • U.S. Patent 5,679,143 employs the use of an organic acid having no basic functional groups and a pH adjusting organic compound containing both acidic and basic functional groups, specifically, at least one acidic functional group and at least one basic functional group, where the number of basic functional groups is the same as or greater than the number of acidic functional groups.
  • the presence of the organic acid in the ink-jet ink composition reduces the pH differential required to render insoluble the pH-sensitive colorant of a second encroaching ink-jet ink composition, as described in U.S. Patent No.
  • the presence of the dual-function pH adjusting compound further increases the concentration of an acid functional group in the ink-jet ink composition while also increasing the pH of the ink-jet ink composition to acceptable levels. Therefore, the dual-function pH adjusting compound augments the bleed alleviation achieved by an organic acid alone according to the mechanism disclosed in U.S. Patent No.5,785,743.
  • all the three primary colors are designed to be reactive with the black ink according to reaction mechanisms such as those described above (multi-valent metal salt, pH-sensitive dye).
  • United States patent No. 4,694,302 discloses a method of increasing the water fastness and print quality of an ink employed in ink-jet printers.
  • the method involves providing a reactive species that reacts with a component in the substrate to form a polymer that binds the dye in the ink to the polymeric lattice.
  • a separate reactive component may be deposited on the substrate on the same location as the reactive species which causes a polymeric reaction to occur.
  • the ink may be in one or the other or both reactive components.
  • An ink-jet printer having indexed orifices is also disclosed.
  • the ink set utilizes the advantages of reactive inks while allowing flexibility in the design of the inks and the architecture of the ink-jet printing systems in which they are used.
  • the ink-jet printing apparatus comprises a printhead portion having at least three ejector portions; a reservoir portion comprising at least three ink chambers, each ink chamber for providing ink to one of the at least three ejector portions, two of the ink chambers each chamber including one of a first or a second mutually reactive inks and the other ink chamber including an ink non-reactive with the first and second mutually reactive inks.
  • U.S. Patent Applications Serial Numbers 09/069717 and 09/069616 address either or both the undesirable mixing of colors (e.g., bleed) and other image quality attributes.
  • a printing method (the under-printing method) may be employed to reduce bleed between the first ink and the non-reactive ink or to enhance other print system attributes.
  • an area (herein referred to as the first area) to be printed with the first ink is also, at least partially, printed with at least one ink reactive (e.g., magenta or yellow) with the first ink, thereby minimizing the mixing of colors between the first area and a second area to be printed with the non-reactive ink.
  • the first ink e.g., black
  • at least one ink reactive e.g., magenta or yellow
  • a fluid delivery apparatus for providing fluid to an ink-jet printing system
  • the fluid delivery apparatus comprising: a plurality of reservoir chambers, each reservoir chamber containing a fluid, the fluid in one reservoir chamber including a reactant fluid and characterised by: the fluid in at least one of the other reservoir chambers including an ink non-reactive with the reactant fluid.
  • the present invention also provides an ink-jet printing apparatus, comprising: at least one printhead portion having at least one integral printhead portion, the printhead portion having at least two ejector portions; and further having at least one fluid delivery apparatus associated with the printhead portion, wherein each reservoir chamber is for providing fluid to one of the at least two ejector portions.
  • the fluid delivery apparatus being as defined above and further comprising a reservoir portion having at least one integral reservoir portion, the reservoir portion having at least two of the reservoir chambers, each reservoir chamber for providing fluid to the ink-jet printing system, one of the reservoir chambers including the reactant fluid,at least one of the other reservoir chambers including the ink non-reactive with the reactant fluid.
  • the ink-jet printing system and fluid delivery apparatus of the present invention utilize the advantages of reactive fluids while allowing for maximum flexibility in the design and architecture of the ink-jet printing system.
  • Fluid - Includes either or both the reactant fluid and ink compositions.
  • Reactant fluid - A fluid that is substantially devoid of color (i.e., the reactant fluid may contain no colorant (e.g., dye or pigment) at all, or it may contain a colorant that does not absorb in the visible light but may absorb in either or both IR or UV).
  • the reactant fluid comprises a component (a molecule or complex, or a functional group in a molecule or complex) that is reactive with a component (a molecule or complex, or a functional group in a molecule or complex) in an ink thus providing for enhanced image integrity of printed areas created with the ink, such as, increased permanence (e.g.
  • Reactive fluid - a fluid that is reactive with another fluid.
  • Integral Printhead - A printhead having an array of drop ejector portions that are permanently attached to a rigid structure. Ejector portions are fabricated from materials including silicon, nickel, polyimide, or a combination thereof. Such techniques of forming a monolithic printhead are known in the art and are discussed in publication such as U.S. Patent Numbers 4,438,191 and 4,922,265, both assigned to the assignee of the present invention.
  • Integral Reservoir Portion - A reservoir portion comprising a plurality of reservoir chambers wherein the plurality of reservoir chambers are permanently affixed with respect to each other.
  • Integral Print Cartridge An ink jet printhead portion; and at least one reservoir chamber, or an integral reservoir portion; forming an integral print cartridge.
  • the reservoirs can be formed integrally with the printhead portions or detachably connected thereto.
  • the reservoir intermittently replenishes the printhead with fluid when the printhead travels to a stationary reservoir periodically for replenishment.
  • Another type makes use of a replaceable ink reservoir connected to the printhead by a fluid conduit. The printhead is replenished with fluid through this fluid conduit.
  • Scan axis - Axis defined by motion of a carriage associated with the printing system.
  • an ink-jet printing system 100 which includes a multi color ink delivery system 105 of the present invention employing at least two fluids, the fluids including a reactant fluid and an ink non-reactive with the reactant fluid.
  • the fluids may furthermore include at least one ink reactive with the reactant fluid for enhancing any one of a number of print system attributes such as bleed alleviation, smearfastness, reduced dry time.
  • Printing system 100 includes a printhead portion 110 that receives signals from printing system control electronics 130 via electronic link 140 for selectively depositing droplets of fluid available from an fluid reservoir portion 120 on a printing medium 90 in response.
  • the printhead 110 comprises a plurality of ejector portions 115 for ejecting different fluids.
  • the ejector portion 115 comprises ejector portions 115K, 1115C, 115M, 115Y, and 115F for ejecting black, cyan, magenta, and yellow inks, and reactant fluid, respectively.
  • more or less inks and reactant fluids can be utilized, having same or different formulations depending on the printing application and degree of print quality, color gamut, and other print attributes desired.
  • each ejector portion receives fluid from a separate reservoir chamber (although in some embodiments it is possible to have more than one reservoir chamber including for supplying the same fluid to an ejector portion).
  • the reservoir portion 120 includes reservoir chambers120K, 120C, 120M, and 120Y for housing black, cyan, magenta, and yellow inks, and 120F for housing reactant fluid "F", respectively.
  • the reservoir chambers can be formed integrally with the printhead portion 110; or can be detachably connected to the printhead portion, either as in the case of an off-board or an on-board system. For example, there may be an optional separation portion 160 between the reservoir portion and the printhead portion.
  • Each reservoir chamber may be individually replaceable.
  • the reservoir chambers are formed as one integral reservoir portion 120, to be replaced as a unit (i.e., integral reservoir portion).
  • the plurality of ejector portions 115 are arranged along an axis to simplify and maximize space efficiency.
  • This axis will be referred to as the array axis "A.”
  • the array axis "A” is parallel to a scan axis "S” referring to the direction of travel for the printhead portion over the printing medium during a printing operation.
  • image integrity will be used to describe the desired effect obtained as the result of the reaction between reactive fluids, for example between an ink reactive with the reactant fluid or between two inks reactive with one another; and, black, cyan, magenta, and yellow will be used to refer to the first through fourth inks.
  • image integrity will encompass print attributes such as bleed alleviation, reduced dry time, smearfastness, and waterfastness that may be affected as the result of the reaction between two reactive fluids.
  • the ink may be reactive or non-reactive, with another ink.
  • Figure 1 represents an ink-jet printing system employing five different reservoir chambers 120K, 120C, 120M, and 120Y, for housing four different inks, first through fourth inks; and 120F for housing reactant fluid F, respectively, in which the reactant fluid is reactive with at least one of ink.
  • the reactant fluid and the at least one ink reactive with the reactant fluid are utilized in an integral printhead portion.
  • the fluid set further comprises an ink non-reactive with the reactant.
  • the fluid set preferably, includes an ink non-reactive with the reactant fluid.
  • the reactant fluid and the at least one ink reactive with the reactant fluid are utilized in an integral printhead portion.
  • the reactant fluid is reactive with at least one of the black, cyan, and magenta inks, more preferably with black, cyan, and magenta inks, and non-reactive with the yellow ink.
  • at least two of the inks are reactive with one another (otherwise referred to as "mutually reactive inks"), for example, the black ink is reactive with at least the magenta ink or the yellow ink, and preferably, with both the magenta and the yellow inks; and more preferably, the cyan ink is non-reactive with the black ink.
  • the present invention is not limited to a fixed number of inks and reactant fluids and that more or less fluids, the fluids having same or different compositions, may be used in the fluid set.
  • the inks are non-reactive with one another but are reactive with the reactant fluid with the exception of the ink that is associated with the drop ejector portion positioned adjacent the drop ejector portion associated with the reactant fluid, the exceptional ink being non-reactive also with the reactant fluid.
  • the mutually reactive fluids are separated by at least one ejector portion associated with a fluid non-reactive with the mutually reactive fluids to provide a separation buffer between the mutually reactive fluids.
  • the reactant fluid is non-reactive with at least one ink associated with the ejector portion which is adjacent the ejector portion associated with the reactant fluid.
  • the reactant fluid and the at least one ink non-reactive with the reactant fluid are contained in an integral reservoir portion.
  • the reactant fluid and the at least one ink non-reactive with the reactant fluid are utilized in an integral printhead portion.
  • the reactant fluid is non-reactive with the fourth ink; the first ink is mutually reactive with the third ink, and preferably, with both the third and fourth inks; and the first ink is non-reactive with the second ink.
  • the first, second, third, and fourth, inks are black, cyan, magenta, and yellow, respectively.
  • the reaction between mutually reactive fluids may employ any one of mechanisms well-known in the art such as the use of a pH-sensitive colorant, or the use of a precipitating agent, as described in the aforementioned patents and applications.
  • the present invention can be employed in any reactive system, regardless of the purpose for the reaction, where the reactant fluid is reactive with at least one ink, and in addition, also when at least two of the inks are reactive with one another such as when the first ink is designed to be reactive with the third, and optionally, the fourth inks.
  • the one or more reactions can serve to enhance any one of a number of desired image integrity attributes.
  • reaction scheme between any two fluids reactive with one another (e.g., fluids one and two) may be the same or different than reaction schemes between any other two reactive fluids (e.g., fluids three and four or, fluids one and four) including reactions between inks and between reactant fluid and an ink; and each reaction scheme may comprise one or more reaction mechanisms (e.g., multi-valent metal salts, cross-linking reaction).
  • reaction schemes between any two fluids reactive with one another (e.g., fluids one and two) may be the same or different than reaction schemes between any other two reactive fluids (e.g., fluids three and four or, fluids one and four) including reactions between inks and between reactant fluid and an ink; and each reaction scheme may comprise one or more reaction mechanisms (e.g., multi-valent metal salts, cross-linking reaction).
  • Fluid sets employing the present invention will enhance image integrity (e.g., bleed) between adjacently printed areas where one of the adjacent areas is printed, at least partially, with at least one first reactive fluid and the other area is printed with at least another second reactive fluid reactive with the first fluid; or in an alternate embodiment, one of the adjacent areas printed (or to be printed) with an ink reactive with the reactant fluid is also printed, at least partially, with the reactant fluid, and the other print area is printed with another ink that may or may not be reactive with either of the two fluids printed on the one adjacent print area.
  • image integrity e.g., bleed
  • the present fluid sets may also enhance other image integrity attributes such as smearfastness and waterfastness where an area to be printed with an ink reactive with the reactant fluid is also printed, at least partially, with the reactant fluid, either before, after, or substantially simultaneously with, the reactive ink.
  • the fluid set comprises at least two mutually reactive inks.
  • an ink non-reactive (for example the second ink) with the mutually reactive inks can be employed such that the non-reactive ink is associated with the ejector portion located between the ejector portions associated with the two mutually reactive inks.
  • the non-reactive ink e.g., fourth ink
  • the non-reactive ink has a color, preferably yellow, that will exhibit the least objectionable diffusion into its adjacently printed areas.
  • an integral printhead portion 500 comprising a plurality of ejector portions 550; 550K, 550C, 550M, and 550Y; for ejecting a plurality of inks, and 550F for ejecting a reactant fluid, is shown, broken away, with only the ejector portions illustrated.
  • the plurality of inks include black, cyan, magenta, and yellow inks.
  • Each ejector portion in printhead portion 500 includes at least one row of nozzles or orifi for ejecting a fluid associated with the ejector portion, and preferably arranged along a paper axis "P," perpendicular to the scan axis "S.”
  • the reactant fluid is reactive with at least one of the inks, and preferably non-reactive with the ink associated with the ejector portion adjacent the ejector portion associated with the reactant fluid.
  • at least two of the inks for example, first and third inks, are mutually reactive.
  • the first ink is black.
  • printhead portion 600 has been divided into two integral printheads 600I and 600II.
  • printhead 600I comprises ejector portions 600K and 600C
  • printhead 600II comprises ejector portions 600M, 600Y, and 600F.
  • Each of the ejector portions, such as 600K may comprise one or more corresponding ejector portions (e.g., for example, there may be two ejector portions associated with a fluid, such as black ink, the association being with one or more reservoir chambers).
  • ejector portions 600K and 600C are associated with black and cyan inks
  • ejector portions 600M, 600Y, and 600F are associate with magenta and yellow inks and reactant fluid, respectively, wherein the magenta and the yellow inks are reactive with the black ink, and the cyan ink is non-reactive with the black ink, and preferably, the yellow ink is non-reactive with both the reactant fluid and the magenta ink.
  • printhead portion 610 has been divided into two integral printheads 610I and 610II.
  • printhead 610I comprises ejector portions 610K, 610C, and 610M; and printhead 610II comprises ejector portions 610Y, and 610F.
  • ejector portions 610K, 610C, and 610M are associated with black, cyan, and magenta inks; and ejector portions 610Y, and 610F are associate with yellow ink and reactant fluid, respectively, wherein the magenta and the yellow inks are reactive with the black ink and the cyan ink is non-reactive with the black and magenta inks.
  • printhead portion 620 has been divided into two integral printheads 620I and 620II.
  • printhead 620I comprises ejector portions 620K 1 , 620K 2 , and 620C; and printhead 620II comprises ejector portions 620M, 620Y, and 620F.
  • more than one ejector portion e.g., 620K 1 and 620 K 2 , are associated with a single fluid, e.g., black ink.
  • ejector portions 620K 1 , 620 K 2 are associated with black ink, and 620C is associated with, cyan ink; and ejector portions 620M, 620Y, and 620F are associated with magenta and yellow inks and reactant fluid, respectively, wherein the magenta and the yellow inks are reactive with the black ink and the cyan ink is non-reactive with the black ink.
  • printhead portion 630 has been divided into two integral printheads 630I and 630II.
  • printhead 630I comprises ejector portions 630K, 630C, 630M, and 630Y; and printhead 630II comprises ejector portion 630F.
  • ejector portions 630K, 630C, 630M, and 630Y are associated with black, cyan, magenta, and yellow inks; and ejector portion 630F is associated with reactant fluid, respectively, wherein the magenta and the yellow inks are reactive with the black ink and the cyan ink is non-reactive with the black ink.
  • the inks are non-reactive with one another but are reactive with the reactant fluid.
  • printhead portion 640 has been divided into three integral printheads 640I, 640II, and 640III.
  • printhead 6401 comprises ejector portions 640F 1 , 640Y 1 , and 640C 1 ;
  • printhead 640II comprises ejector portions 640M 1 , 640K, and 640M 2 ;
  • printhead 640III comprises ejector portions 640C 2 , 640Y 2 , and 640F 2 .
  • ejector portions 640K, 640C 1 and 640C 2 , 640M 1 and 640M 2 , and 640Y 1 and 640Y 2 are associated with black, cyan, magenta, and yellow inks; and ejector portions 640F 1 and 640F 2 are associated with reactant fluid; respectively.
  • the cyan and the yellow inks are reactive with the black ink and the magenta ink is non-reactive with the black ink.
  • Ink delivery system 105' includes a printhead portion 110' comprising a plurality of ejector portions 115' for ejecting different fluids, and a reservoir portion 120' for supplying fluids to the printhead portion 110' by way of fluid outlets 150' and fluid inlets 130'.
  • each fluid outlet 150' When each fluid outlet 150' is connected to each fluid inlet 130', it forms a fluidic connection that fluidically couples a reservoir chamber having a particular fluid with a corresponding ejector portion in a printhead portion utilizing the same fluid.
  • fluid outlets 150' include 150'K, 150'C, 150'M, 150'Y, and 150'F are configured to connect to fluid inlets 130'K, 130'C, 130'M, 130'Y, and 130'F respectiyely, hence providing black, cyan, magenta, and yellow inks, and reactant fluid from their corresponding fluid reservoir chambers 120'K, 120'C, 120'M, 120'Y, and reactant fluid reservoir chamber 120'F; to ejector portions 115'K, 115'C, 115'M, 115'Y, and 115'F respectively.
  • fluid outlets 150, fluid inlets 130', reservoir chambers 120', and ejector portions 115' are arranged along an array axis that is preferably parallel to the scan axis "S.”
  • the reactant fluid is reactive with at least one ink, preferably with three inks. In one embodiment, at least two of the inks are mutually reactive.
  • the first ink is black.
  • the first ink is mutually reactive with the third ink, and preferably with both the third and fourth inks; and non-reactive with the second ink; and the reactant fluid is non-reactive with the fourth ink.
  • the first, second, third, and fourth, inks are black, cyan, magenta, and yellow.
  • the reservoir chambers 120'K, 120'C, 120'M; and 120'Y and their corresponding fluid outlets 150'K, 150'C, 150'M, 150'Y, and 150'F are positioned along the scan axis "S," in a predetermined positioning order same as that for their corresponding ejector portions 115'K, 115'C, 115'M, 115'Y, and 115'F; and their corresponding fluid inlets 130'K, 130'C, 130'M, 130'Y, and 130'F; respectively.
  • This similar positioning order as depicted in Figure 4, provides for maximum distance between the fluidic connections connecting the fluids reactive with one another, hence minimizing unwanted contamination between mutually reactive fluids, particularly in the event of possible leakage in the fluid connections.
  • Figure 5 depicts a representation of one embodiment of printing system 100.
  • Printing system 100 includes printing medium input 230"A and output 230"B trays for storing printing medium (not shown) both before and after, respectively, the printing medium is fed through a print zone 232".
  • a carriage 234" supports a printhead portion 110" and scans over print zone 232" in a scan direction "S" to allow the ejectors portions (not shown) associated with printhead portions 110" to selectively deposit one or more fluids on the printing medium.
  • the printhead portion 110" is fluidically connected to a reservoir portion 120" via conduit 216".
  • the reservoir portion 120" may be placed in a location that scans with the carriage 234" or in a location that does not, to allow for varying carriage configurations.
  • printhead portion 110" comprising five ejector portions 115"K, 115"C, 115"M, 115"Y, and 115"F (not shown); is spaced from the reservoir portion 120" comprising five reservoir chambers 120"K, 120"C, 120"M, 120"Y, and 120"F; to allow the reservoir portion 120" to be placed in a location that does not scan with carriage 234".
  • Printhead portion 110" receives ink and reactant fluid from reservoir portions 120" via conduit 216".
  • first through fourth inks is not limited to black, cyan, magenta, and yellow and also that when a non-reactive subset is used any one of the inks may define the non-reactive subset.
  • the ink set could comprise: black, cyan 1 , cyan 2 , magenta 1 , magenta 2 , and yellow, wherein the designations "1" and “2" refer to inks having the same hue but a different colorant concentrations or the same ink formulation; or black, cyan, magenta, yellow, red, green, blue, and white to provide a larger color gamut.
  • the reactant fluid reservoir and its corresponding ejector portion may be placed at any one or more locations consistent with the present invention, for example on either or both sides of the inks as for example illustrated by the configuration depicted in Figure 3(e). Consistent with the present invention, preferably, any two fluids associated with adjacently located ejector portions are non-reactive with one another.
  • the present fluid set comprises at least one reactant fluid and at least one ink reactive with the reactant fluid, and preferably, at least one ink non-reactive with the reactant fluid.
  • the fluids comprise an aqueous vehicle.
  • the inks further comprise at lease one colorant.
  • the reactant fluid further comprises at least one component for reacting with at least one component in the at least one ink with which the reactant fluid is reactive.
  • At least one ink, preferably all, and most preferably, all but one, is reactive with the reactant fluid.
  • at least two of the inks are also mutually reactive with one another (e.g., first and third inks).
  • the ink set comprises at least one ink non-reactive (e.g., second ink) with the at least two mutually reactive inks.
  • the reaction between the reactive fluids may employ any one of reactive mechanisms well-known in the art such as the use of a pH-sensitive colorant, or the use of a precipitating agent, as described in the aforementioned patents and applications.
  • the present invention can be employed in any reactive system when the reactant fluid is reactive with at least one ink.
  • the reaction between the reactive fluids can serve to enhance any one of a number of print system attributes such as bleed alleviation, smearfastness, reduced dry time, or any other desirable attribute.
  • reaction scheme between any two reactive fluids (e.g., fluid one and fluid two) may be the same or different than reaction schemes between any other two reactive fluids (e.g., fluid three and fluid four or, fluid one and fluid four); and each reaction scheme may comprise one or more reaction mechanisms, such as those disclosed in U.S. Patent Application Serial Number 09/064,643, entitled “Ink Set For Improved Print Quality,” by Ma et. al., filed April 22, 1998, and assigned to the same assignee as the present invention, and incorporated herein by reference in its entirety.
  • the aqueous vehicle is water or a mixture of water and at least one water-soluble organic solvent, as is well-known in the art. Selection of a suitable mixture depends on requirements of the specific application, such as the desired surface tension and viscosity, the selected colorant, drying time of the ink-jet fluid, and the type of print medium onto which the fluid will be printed.
  • the reactive fluids may have additional components.
  • the reaction mechanism for reducing bleed is by precipitation of a pH-sensitive colorant in the first ink
  • either or both the reactant fluid and the reactive third and fourth inks comprise an organic acid in sufficient amount to render the pH-sensitive colorant of the first ink insoluble upon contact, as disclosed in U.S. Patent 5,679,143 and U.S. Application 08/567974, mentioned above.
  • a precipitating agent such as multi-valent metal salts
  • either or both the reactant fluid and the third and fourth inks contain a precipitating agent, e.g., multi-valent metal salt.
  • Ma discloses, a set of printing liquids comprising: a first anionic printing liquid comprising an aqueous vehicle, at least one first colorant, and at least one first anionic polymer; a second anionic printing liquid comprising an aqueous vehicle, at least one second colorant, at least one second anionic polymer, and an acid additive having a pKa up to the pKa of the at least first polymer of the first printing liquid; a third cationic printing liquid comprising an aqueous vehicle, at least one third colorant, at least one third cationic polymer, and a pH in the range from about 2 to about 5; and a fourth anionic printing liquid comprising an aqueous vehicle, at least one fourth anionic dye, and a precipitating agent.
  • a first anionic printing liquid comprising an aqueous vehicle, at least one first colorant, and at least one first anionic polymer
  • a second anionic printing liquid comprising an aqueous vehicle, at least one second colorant, at least one second ani
  • the reactant fluid may contain all of the aforementioned reactive components compatible with one another so as to provide for the proper reaction mechanisms between the reactant fluid and an ink reactive with the reactant fluid or between two inks reactive with one another. It is also within the scope of the present invention to have a fluid set wherein the reactant fluid may have to react with more than one ink to achieve the desired (that is, the reactant fluid may provide a component such that in the event that the reactant fluid and two inks come into contact with one another on a print medium a desirable reaction occurs).
  • the reactant fluid may contain polymeric or cross-linkable components for rendering the images more permanent.
  • the reactive fluids e.g., the reactant fluid and an ink reactive with the reactant fluid
  • the colorants may be dye-based or pigment-based.
  • pigment refers to a colorant that is insoluble in the aqueous vehicle, and includes disperse dyes as well has pigments that are either dispersed with the aid of a dispersant or those that are self-dispersed.
  • the colorants employed in the inks may be either dye or pigment-based.
  • the choice of colorants is dependent upon the particular printing application. As in the case of the colorant for the first ink, the choice of colorant further depends on the reaction mechanism of choice, for example - use of pH sensitive colorant, or the use of a precipitating agent (e.g., multi-valent metal salt), or any other suitable reaction mechanism.
  • a precipitating agent e.g., multi-valent metal salt
  • suitable colorants used in the first ink include organic dyes having at least one and preferably two or more carboxyl and/or carboxylate groups examples of which are listed in U.S. Patent No. 4,963,189 (filed by Hindagolla and assigned to the same assignee as the present invention, and incorporated herein by reference), and carboxylated pigment dispersions having a water insoluble colorant (e.g., pigment) dispersed with a dispersant preferably containing carboxylate solubilizing groups, such as those disclosed in U.S. Patent No. 5,085,698, and U.S. Patent 5,555,008, both incorporated herein by reference; or self-dispersed pigments provided under the Trade name Cabojet TM by Cabot Company.
  • organic dyes having at least one and preferably two or more carboxyl and/or carboxylate groups examples of which are listed in U.S. Patent No. 4,963,189 (filed by Hindagolla and assigned to the same assignee as the present invention, and incorporated here
  • Colorants for use in the other inks i.e., second, third, and fourth inks, are well-known in the art, and for example, as described in the aforementioned patents and applications.
  • the fluids may further comprise additional components such as biocides, surfactants, and the like, each of which are commonly employed additives in ink-jet prinking.
  • Fluid sets employing the present invention will enhance image integrity (e.g., bleed) between adjacently printed areas where one of the adjacent areas is printed, at least partially, with at least one reactive fluid and the other adjacent area is printed, at least partially, with at least another fluid reactive with the at least one reactive fluid.
  • the present fluid sets may also enhance image integrity (e.g., smearfastness and waterfastness) where an area to be printed with a reactive ink is also printed, at least partially, with the reactant fluid, either before, after, or substantially simultaneously with, the reactive ink.
  • the printing method comprises:
  • the printing method comprises:
  • the reaction between the reactant fluid and the ink reactive with the reactant fluid may take place regardless of the order in which droplets of the reactant fluid and the ink reactive with the reactant fluid are deposited on the print medium.
  • the reactant fluid may be deposited first, after or substantially simultaneously with the ink reactive with the reactant fluid, such as the black ink, as it may be required to achieve the desired reactive result.
  • the ink to be printed on the second print area may be deposited first, followed by the deposition of the reactant fluid and the ink reactive with the reactant fluid on the first print, respectively.
  • the present ink-jet printing apparatus and fluid delivery apparatus are expected to find commercial use in ink-jet printing.

Landscapes

  • Ink Jet (AREA)
  • Ink Jet Recording Methods And Recording Media Thereof (AREA)
  • Inks, Pencil-Leads, Or Crayons (AREA)

Claims (11)

  1. Eine Fluidliefervorrichtung (105) zum Liefern von Fluid an ein Tintenstrahldrucksystem (100), wobei die Fluidliefervorrichtung folgendes Merkmal umfasst:
    eine Mehrzahl von Reservoirkammern (120C, 120K, 120M, 120Y, 120F), wobei jede Reservoirkammer ein Fluid enthält, wobei das Fluid in einer Reservoirkammer ein Reaktantfluid umfasst und dadurch gekennzeichnet ist, dass: das Fluid in zumindest einer der anderen Reservoirkammern eine Tinte umfasst, die nicht mit dem Reaktantfluid reagiert.
  2. Die Vorrichtung gemäß Anspruch 1, bei der die Mehrzahl von Reservoirkammern einen integrierten Reservoirabschnitt (120) bilden.
  3. Die Fluidliefervorrichtung gemäß Anspruch 1 oder Anspruch 2, die ferner folgendes Merkmal umfasst:
    einen Reservoirabschnitt, der zumindest einen integrierten Reservoirabschnitt (120) aufweist, wobei der Reservoirabschnitt zumindest zwei der Reservoirkammern aufweist, wobei jede Reservoirkammer zum Liefern von Fluid an das Tintenstrahldrucksystem dient.
  4. Eine Tintenstrahldruckvorrichtung (100), die folgende Merkmale umfasst:
    zumindest einen Druckkopfabschnitt (600), der zumindest einen integrierten Druckkopfabschnitt (600I, 600II) aufweist, wobei der Druckkopfabschnitt (600) zumindest zwei Ausstoßvorrichtungsabschnitte (600K, 600C, 600M, 600Y, 600F) aufweist; und ferner mit
    zumindest einer Fluidliefervorrichtung (105) gemäß Anspruch 3, die dem Druckkopfabschnitt (600) zugeordnet ist, wobei jede Reservoirkammer Fluid an einen der zumindest zwei Ausstoßvorrichtungsabschnitte liefert.
  5. Die Fluidliefervorrichtung gemäß Anspruch 1 oder Anspruch 2, bei der:
    jede Reservoirkammer eines einer Mehrzahl von Fluiden enthält, wobei die Mehrzahl von Fluiden zumindest zwei zueinander reaktive Fluide und zumindest eine Tinte aufweist, die mit den zumindest zwei gegenseitig reaktiven Fluiden nicht reagiert, wobei eines der zumindest zwei gegenseitig reaktiven Fluide ein Reaktantfluid ist und das andere eine Tinte ist, die mit dem Reaktantfluid reagiert.
  6. Die Vorrichtung gemäß Anspruch 5, bei der die Reservoirkammern, die zumindest das Reaktantfluid und die Tinte aufweisen, die nicht mit dem Reaktantfluid reagiert, einen integrierten Reservoirabschnitt (120) bilden.
  7. Die Fluidliefervorrichtung gemäß Anspruch 3, bei der:
    der Reservoirabschnitt zumindest drei der Reservoirkammern aufweist, und zumindest eine der Reservoirkammern eine Tinte umfasst, die mit dem Reaktantfluid reagiert.
  8. Die Vorrichtung gemäß Anspruch 3, Anspruch 5 oder Anspruch 7, bei der die Reservoirkammern, die das Reaktantfluid und die Tinte enthalten, die mit dem Reaktantfluid reagiert, unterschiedliche integrierte Reservoirabschnitte bilden.
  9. Eine Tintenstrahldruckvorrichtung (100), die folgende Merkmale umfasst:
    zumindest einen Druckkopfabschnitt (600), der zumindest einen integrierten Druckkopfabschnitt (600I, 600II) aufweist, wobei der Druckkopfabschnitt (600) zumindest drei Ausstoßvorrichtungsabschnitte (600K, 600C, 600M, 600Y, 600F) aufweist; und ferner mit
    zumindest einer Fluidliefervorrichtung (105) gemäß Anspruch 7, die dem Druckkopfabschnitt (600) zugeordnet ist, wobei jede Reservoirkammer Fluid an einen der zumindest drei Ausstoßvorrichtungsabschnitte liefert.
  10. Die Vorrichtung gemäß Anspruch 4 oder Anspruch 9, bei der der zumindest eine integrierte Druckkopfabschnitt (600I, 600II) und der zumindest eine Reservoirabschnitt (120), der dem zumindest einen integrierten Druckkopfabschnitt (600I, 600II) zugeordnet ist, eine integrierte Druckkassette bilden.
  11. Die Vorrichtung gemäß Anspruch 4 oder Anspruch 9, bei der der zumindest eine Reservoirabschnitt (120) angepasst ist, um lösbar an dem zumindest einen integrierten Druckkopfabschnitt (600I, 600II) befestigt zu werden, der dem zumindest einen Reservoirabschnitt zugeordnet ist.
EP99303333A 1998-04-29 1999-04-28 Flüssigkeitsversorgungsvorrichtung Expired - Lifetime EP0956960B1 (de)

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
US09/069,616 US6126268A (en) 1998-04-29 1998-04-29 Multi-chamber ink supply
US69717 1998-04-29
US09/069,717 US5976230A (en) 1998-04-29 1998-04-29 Reactive ink set for ink-jet printing
US69616 1998-04-29
US183538 1998-10-29
US09/183,538 US6309062B1 (en) 1998-10-29 1998-10-29 Multi-chamber fluid supply

Publications (3)

Publication Number Publication Date
EP0956960A2 EP0956960A2 (de) 1999-11-17
EP0956960A3 EP0956960A3 (de) 2000-02-02
EP0956960B1 true EP0956960B1 (de) 2006-12-27

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Application Number Title Priority Date Filing Date
EP99303333A Expired - Lifetime EP0956960B1 (de) 1998-04-29 1999-04-28 Flüssigkeitsversorgungsvorrichtung

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JP (1) JP3801380B2 (de)
KR (1) KR100621298B1 (de)
CN (1) CN1146502C (de)
DE (1) DE69934539T2 (de)
ES (1) ES2277411T3 (de)
TW (1) TW442403B (de)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6679585B2 (en) 2000-09-04 2004-01-20 Canon Kabushiki Kaisha Ink jet recording head and ink jet recording apparatus
JPWO2002057083A1 (ja) * 2001-01-17 2004-05-20 セイコーエプソン株式会社 インク受容層形成用の処理剤収容容器、インク収容容器、記録装置、並びに記録方法
NL1018564C2 (nl) * 2001-07-17 2003-01-20 Oce Tech Bv Een inrichting voor het transporteren van vloeibare inkt, een flexibele slang geschikt voor een dergelijke inrichting en het gebruik van een dergelijke slang.
GB2382798A (en) * 2001-12-04 2003-06-11 Qinetiq Ltd Inkjet printer which deposits at least two fluids on a substrate such that the fluids react chemically to form a product thereon
US6722765B2 (en) * 2002-03-11 2004-04-20 Hewlett-Packard Development Company, L.P. Non-reactive ink vehicle formulation
US6913819B2 (en) * 2002-12-27 2005-07-05 Christine E. Wallner Cementitious veneer and laminate material
US7497563B2 (en) * 2004-06-09 2009-03-03 Hewlett-Packard Development Company, L.P. Self-dispersed inks for same orifice plate systems

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US4694302A (en) * 1986-06-06 1987-09-15 Hewlett-Packard Company Reactive ink-jet printing
AU603617B2 (en) * 1986-11-17 1990-11-22 Abbott Laboratories Apparatus and process for reagent fluid dispensing and printing
US5181045A (en) 1991-09-23 1993-01-19 Hewlett-Packard Company Bleed alleviation using pH-sensitive dyes
US5428383A (en) 1992-08-05 1995-06-27 Hewlett-Packard Corporation Method and apparatus for preventing color bleed in a multi-ink printing system
US6102537A (en) * 1995-02-13 2000-08-15 Canon Kabushiki Kaisha Method and apparatus for ink-jet printing
US5785743A (en) 1995-12-06 1998-07-28 Hewlett-Packard Company Bleed alleviation in ink-jet inks using organic acids
US5679143A (en) 1995-12-06 1997-10-21 Hewlett-Packard Company Bleed alleviation in ink jet inks using acids containing a basic functional group
US6581032B1 (en) 1999-09-22 2003-06-17 Conexant Systems, Inc. Bitstream protocol for transmission of encoded voice signals
JP4465895B2 (ja) 2000-05-22 2010-05-26 日本精工株式会社 ころ軸受
JP2004332885A (ja) 2003-05-12 2004-11-25 Nippon Densan Corp 気体動圧軸受及びスピンドルモータ

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TW442403B (en) 2001-06-23
EP0956960A3 (de) 2000-02-02
EP0956960A2 (de) 1999-11-17
KR19990083530A (ko) 1999-11-25
DE69934539T2 (de) 2007-10-04
JP3801380B2 (ja) 2006-07-26
CN1146502C (zh) 2004-04-21
ES2277411T3 (es) 2007-07-01
DE69934539D1 (de) 2007-02-08
JP2000062157A (ja) 2000-02-29
KR100621298B1 (ko) 2006-09-06
CN1239038A (zh) 1999-12-22

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