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公开(公告)号：DE69935694D1
公开(公告)日：2007-05-16
申请号：DE69935694
申请日：1999-09-29
Applicant: XEROX CORP
Inventor： PEETERS ERIC , NOOLANDI JAAN , APTE RAJ B , FLOYD PHILIP D , SMALL JONATHAN , KOVACS GREGORY J , LEAN MENG H , VOLKEL ARMIN R , BOLTE STEVEN B , SHI AN-CHANG , ENDICOTT FREDERICK J , ANDERSON GREGORY B , HAYS DAN A , KUBBY JOEL A , JACKSON WARREN B , MOFFAT KAREN A , MCANENEY BRIAN T , VEREGIN RICHARD P N , MCDOUGALL MARIA N V , BOILS DANIELLE C , SZABO PAUL , BERLIN ANDREW A , CONNELL NEVILLE G A
Abstract: A print head (24) is disclosed for use in a marking apparatus in which a propellant stream (A) is passed through a channel (34) and directed toward a substrate (38). Marking material (28), such as ink, toner, etc., is controllably introduced into the propellant stream (A) and imparted with sufficient kinetic energy thereby to be made incident upon the substrate (38). A multiplicity of channels for directing the propellant and marking material allow for high throughput, high resolution marking. Multiple marking materials (28C, 28M, 28Y, 28K) may be introduced into the channel (34) and mixed therein prior to being made incident on the substrate (38), or mixed or superimposed on the substrate (38) without re-registration. One example is a single-pass, full-color printer.
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公开(公告)号：DE69325553D1
公开(公告)日：1999-08-12
申请号：DE69325553
申请日：1993-08-17
Applicant: XEROX CORP
Inventor： HSIAO CHENG-KUO , HOR AH-MEE , MAYO JAMES D , BARANYI GIUSEPPA , KOVACS GREGORY J , BLUHM TERRY L , POPOVIC ZORAN D , YEUNG B W ANISSA
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公开(公告)号：FR2545950A1
公开(公告)日：1984-11-16
申请号：FR8406581
申请日：1984-04-26
Applicant: XEROX CORP
Inventor： TAM MAN CHUNG , KOVACS GREGORY J
Abstract: An imaging member comprising a substrate, an electrically insulating swellable, softenable layer on the substrate, the softenable layer having particulate migration marking material located at least at or near the surface of the softenable layer spaced from the substrate, and a protective overcoating comprising a film-forming resin, a portion of which extends beneath the surface of the softenable layer. This migration imaging member may be prepared with the aid of a material which swells at least the surface of the softenable layer to allow the film-forming resin to penetrate beneath the surface of the softenable layer.
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公开(公告)号：DE69820819T2
公开(公告)日：2004-06-17
申请号：DE69820819
申请日：1998-08-14
Applicant: XEROX CORP
Inventor： PARKER DELMER G , KOVACS GREGORY J
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公开(公告)号：DE69822680D1
公开(公告)日：2004-05-06
申请号：DE69822680
申请日：1998-01-16
Applicant: XEROX CORP
Inventor： SACRIPANTE GUERINO G , MAYER FATIMA M , DRAPPEL STEPHEN V , PAINE ANTHONY J , KOVACS GREGORY J
Abstract: An ink composition comprised of a colorant and a reversible crosslinked component vehicle obtained from the reaction product of an anhydride and an organoamine, and which ink possesses a viscosity of from about 1 centipoise to about 25 centipoise at a temperature of from about 125 DEG C. to about 185 DEG C.
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Patent Agency Ranking
公开(公告)号：DE69010638T2
公开(公告)日：1995-01-12
申请号：DE69010638
申请日：1990-11-30
Applicant: XEROX CORP
Inventor： TAM MAN C , LOUTFY RAFIK O , KOVACS GREGORY J
Abstract: Disclosed is a xeroprinting process which comprises (1) providing a xeroprinting master comprising (a) a substrate (22); and (b) a layer of softenable material (25), a charge-transport material (27) capable of transporting charges of one polarity, and migration marking material (26) situated contiguous to the surface of the softenable layer spaced from the substrate, wherein a portion of the migration marking material has migrated through the softenable layer toward the substrate in imagewise fashion; (2) uniformly charging the xeroprinting master to a polarity opposite to the polarity of the charges that the charge transport material in the softenable layer is capable of transporting; (3) uniformly exposing the charged master to activating radiation (31), thereby discharging those areas of the master wherein the migration marking material has migrated toward the substrate and forming an electrostatic latent image; (4) developing the electrostatic latent image, and (5) transferring the developed image to a receiver sheet. The process results in greatly-enhanced contrast potentials or contrast voltages between the charged and uncharged areas of the master subsequent to exposure to activating radiation, and the charged master can be developed with either liquid developers or dry developers.
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公开(公告)号：CA1332115C
公开(公告)日：1994-09-27
申请号：CA584608
申请日：1988-11-30
Applicant: XEROX CORP
Inventor： TAM MAN C , BLOEMBERGEN STEVEN , KOVACS GREGORY J , JENNINGS CAROL A , LOUTFY RAFIK O , GARDNER SANDRA J , TAYLOR MICHAEL G
Abstract: An imaging system including an migration imaging member comprising a substrate and an electrically insulating softenable layer adjacent the substrate, the softenable layer comprising a fracturable layer of electrically photosensitive migration marking material located substantially at or near the surface of the softenable layer spaced from the substrate, and a copolymer of styrene and ethyl acrylate in at least one layer adjacent the substrate, the copolymer comprising between about 40 and about 80 mole percent styrene, between about 20 and about 60 mole percent ethyl acrylate, the copolymer having a Mn between about 4,000 and about 35,000, a Mw between about 10,000 and about 80,000, a Tg between about 30.degree.C and about 75.degree.C, and a melt viscosity between about 1x102 poise and about 1x106 poise at 115.degree.C. The migration imaging member may be imaged by charging, imagewise exposing to activating radiation and developing with heat, solvent vapor, or solvent vapor pretreatment followed by heat. Some embodiments of the imaged member, where the softenable layer contains a charge transport material, may be utilized as a master in a xeroprinting process. The copolymer of styrene and ethyl acrylate may be in an adhesive layer or charge transport spacing layer between the substrate and the softenable layer, or in the softenable layer itself. If desired, the copolymer in any of the aforesaid layers may be a terpolymer of styrene, ethyl acrylate and a copolymerizable organic acid having carbon-to-carbon unsaturation or a copolymerizable derivative of the organic acid.
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公开(公告)号：CA2063473A1
公开(公告)日：1993-01-02
申请号：CA2063473
申请日：1992-03-19
Applicant: XEROX CORP
Inventor： NG T HWEE , MAHABADI HADI K , TAM MAN C , KOVACS GREGORY J , PETERS ERIC M , LOUTFY RAFIK O
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公开(公告)号：DE102011007737A1
公开(公告)日：2011-10-27
申请号：DE102011007737
申请日：2011-04-20
Applicant: XEROX CORP
Inventor： DOMOTO GERALD A , KLADIAS NICHOLAS , DRAPPEL STEPHAN V , KOVACS GREGORY J , ROOF BRYAN J , KNAPP STEPHEN T
Abstract: Es werden Verfahren zum Höhenausgleich von Tinte auf Substraten und Vorrichtungen, die zum Drucken geeignet sind, bereitgestellt. Eine anschauliche Ausführungsform der Verfahren umfasst das Beaufschlagen von Tinte, die auf einer ersten Oberfläche eines porösen Substrats aufgebracht ist, mit Strahlung, die von mindestens einer Blitzlichtleuchte abgegeben wird. Der Strahlungsblitz erwärmt die Tinte auf mindestens eine Viskositätsschwellwerttemperatur der Tinte, so dass die Tinte lateral auf der ersten Oberfläche fließen kann, so dass ein Höhenausgleich der Tinte erreicht wird. Die Tinte wird ausreichend rasch erwärmt, so dass eine Wärmeübertragung von Tinte auf das Substrat ausreichend gering ist während des Höhenausgleichs, so dass Tinte an der Substratgrenzfläche auf eine Temperatur unterhalb der Viskositätsschwellwerttemperatur abgekühlt wird, wodurch ein merkliches Eindringen von Tinte in das Substrat von der ersten Oberfläche aus verhindert wird.
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公开(公告)号：CA2529140C
公开(公告)日：2009-11-17
申请号：CA2529140
申请日：2005-12-09
Applicant: XEROX CORP
Inventor： KOVACS GREGORY J
Abstract: Alignment of an ejector module in a printhead array is achieved along a lateral direction by arranging first and second partially overlapping pluralities of nozzles, determining an alignment pair between first and second nozzles with in their respective pluralities, and assigning the alignment pair as boundaries for print actuation. The first and second ejector modules are disposed in a printhead array along a lateral direction and include first and second nozzles that eject fluid on command. The first nozzles are disposed with a first spacing therebetween in the first ejector module. The second nozzles at one end of the second ejector module that overlap the first nozzles are disposed with a second spacing that diffe rs from the first spacing. An alignment pair between first and second nozzles of the ir respective pluralities is determined to minimize an alignment spacing betwee n each other as compared to remaining nozzles. The first and second alignment nozzl es are assigned as first and second boundaries for print actuation.
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