Patents by Inventor Shai Lior
Shai Lior has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 10437174Abstract: In one example, a system for transferring an image from a photoconductor to a print substrate includes a transfer member having a removable blanket wrapped around a rotatable drum and a laser. The blanket has a light absorbing exterior surface to receive a liquid LEP ink image from the photoconductor and to release a layer of molten toner to a print substrate. As the drum rotates, the laser exposes a width of the exterior surface of the blanket carrying a liquid LEP ink image to a beam of coherent light that delivers enough power to transform the liquid LEP ink image into molten toner.Type: GrantFiled: November 16, 2018Date of Patent: October 8, 2019Assignee: HP Indigo B.V.Inventors: Mark Sandler, Peter Nedelin, Shai Lior
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Patent number: 10353334Abstract: A method for determining coat weight of a printed transparent electrophotographic composition is described, in which a calibration composition is added to a transparent liquid electrophotographic composition to produce a test composition, the calibration composition comprising a carrier liquid, a polymer resin, and at least 5 wt. % of an optical brightening agent based on the total solids content of the calibration composition. The test composition is electrophotographically printed onto a test substrate to produce the printed transparent electrophotographic ink composition; the fluorescence of the printed transparent electrophotographic composition is measured; and the coat weight of the printed transparent electrophotographic composition is determine based on the fluorescence of the printed transparent electrophotographic composition.Type: GrantFiled: January 19, 2015Date of Patent: July 16, 2019Assignee: HP Indigo B.V.Inventors: Inna Tzomik, Hannoch Ron, Shai Lior, Gleb Romantcov
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Publication number: 20190146375Abstract: A method of operating an electrophotographic printer (100) to control the optical density of a printed image is described. The method comprises providing a printing substance on a transfer member (104); emitting a pulse of heat to heat the printing substance on the transfer member to increase flowability of the printing substance on the transfer member; and transfer-ring, from the transfer member to a substrate (108), the printing substance heated by the pulse of heat so as to provide the printed image on the substrate.Type: ApplicationFiled: January 10, 2019Publication date: May 16, 2019Applicant: HP INDIGO B.V.Inventors: Peter Nedelin, Mark Sandler, Shai Lior
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Publication number: 20190146411Abstract: According to one example, there is provided a visual security feature. The visual security feature comprises a security feature printed on a media. The security feature includes a security code printed on the media, and a holographic image is embossed on the printed security feature.Type: ApplicationFiled: January 9, 2019Publication date: May 16, 2019Applicant: HP INDIGO B.V.Inventors: Gideon Amir, Mark Sandler, Shai Lior, Dror Kella
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Publication number: 20190086839Abstract: In one example, a system for transferring an image from a photoconductor to a print substrate includes a transfer member having a removable blanket wrapped around a rotatable drum and a laser. The blanket has a light absorbing exterior surface to receive a liquid LEP ink image from the photoconductor and to release a layer of molten toner to a print substrate. As the drum rotates, the laser exposes a width of the exterior surface of the blanket carrying a liquid LEP ink image to a beam of coherent light that delivers enough power to transform the liquid LEP ink image into molten toner.Type: ApplicationFiled: November 16, 2018Publication date: March 21, 2019Inventors: Mark Sandler, Peter Nedelin, Shai Lior
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Patent number: 10197949Abstract: Herein is disclosed a method of electrostatic printing and glossing comprising: forming a first toner image on a print substrate by electrostatically printing an electrostatic ink comprising a first resin component comprising an ethylene acrylic acid resin, an ethylene methacrylic acid resin or combinations thereof; forming a second toner image disposed on the first toner image on the print substrate by electrostatically printing a liquid electro photographic (LEP) printing composition comprising a first resin component comprising an ethylene acrylic acid resin, an ethylene methacrylic acid resin or combinations thereof, and a second resin component present in an amount of about 20% to about 80% by weight of total solids content of the LEP printing composition, the second resin component having a melting point of from about 50° C. to about 75° C., which is below the melting point of the first resin component, or from about 140° C. to about 180° C.Type: GrantFiled: January 20, 2015Date of Patent: February 5, 2019Assignee: HP Indigo B.V.Inventors: Hannoch Ron, Shai Lior, Mark Sandler, Gleb Romantcov, Daniel Skvirsky
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Patent number: 10191414Abstract: A method of operating an electrophotographic printer (100) to control the optical density of a printed image is described. The method comprises providing a printing substance on a transfer member (104); emitting a pulse of heat to heat the printing substance on the transfer member to increase flowability of the printing substance on the transfer member; and transferring, from the transfer member to a substrate (108), the printing substance heated by the pulse of heat so as to provide the printed image on the substrate.Type: GrantFiled: July 28, 2015Date of Patent: January 29, 2019Assignee: HP INDIGO B.V.Inventors: Peter Nedelin, Mark Sandler, Shai Lior
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Patent number: 10191449Abstract: According to one example, there is provided a visual security feature. The visual security feature comprises a security feature printed on a media. The security feature includes a security code printed on the media, and a holographic image is embossed on the printed security feature.Type: GrantFiled: July 17, 2012Date of Patent: January 29, 2019Assignee: HP INDIGO B.V.Inventors: Gideon Amir, Mark Sandler, Shai Lior, Dror Kella
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Patent number: 10156815Abstract: In one example, a system for transferring an ink image from a photoconductor to a print substrate includes a transfer member having a light absorbing exterior surface to receive a liquid LEP ink image from the photoconductor and to release a molten toner layer to a print substrate and a light source to expose a width of the surface carrying the liquid ink image to a light beam delivering enough power to transform the liquid ink image into a molten toner layer.Type: GrantFiled: March 6, 2015Date of Patent: December 18, 2018Assignee: HP Indigo B.V.Inventors: Mark Sandler, Peter Nedelin, Shai Lior
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Publication number: 20180321620Abstract: An example method includes concentrating first printing liquid on a conveyor. Concentrating the first printing liquid produces liquid carrier having a low non-volatile solid concentration. The method also includes concentrating the liquid carrier having the low non-volatile solid concentration on a developer roller. Concentrating the liquid carrier having the low non-volatile solid concentration produces liquid carrier substantially free of non-volatile solids. The method also includes delivering the liquid carrier substantially free of non-volatile solids to a storage vessel.Type: ApplicationFiled: February 8, 2016Publication date: November 8, 2018Applicant: HP INDIGO B.V.Inventors: Peter Nedelin, Shai Lior, Mark Sandler
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Publication number: 20180321621Abstract: An example apparatus includes a conveyor. The apparatus also includes a developer unit. The developer unit is to concentrate printing liquid. The developer unit also is to deliver the printing liquid to the conveyor as a thick layer on the conveyor.Type: ApplicationFiled: February 8, 2016Publication date: November 8, 2018Applicant: HP INDIGO B.V.Inventors: Peter Nedelin, Shai Lior, Mark Sandler
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Patent number: 10078289Abstract: A method of operating a printing system includes determining whether ghosting is expected on a photoreceptor and applying power to a laser applied to the photoreceptor based on whether the ghosting is expected.Type: GrantFiled: November 29, 2016Date of Patent: September 18, 2018Assignee: HP Indigo B.V.Inventors: Mark Sandler, Shai Lior
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Patent number: 10042308Abstract: Herein is disclosed a method of electrostatic printing and foiling comprising: forming a colored toner image on a print substrate by electrostatically printing an electrostatic ink comprising a first resin component comprising an ethylene acrylic acid resin, an ethylene methacrylic acid resin or combinations thereof; forming an adhesive toner image disposed on the colored toner image on the print substrate by electrostatically printing a liquid electro photographic (LEP) printing composition comprising a first resin component comprising an ethylene acrylic acid resin, an ethylene methacrylic acid resin or combinations thereof, and a second resin component present in an amount of about 20% to about 80% by weight of total solids content of the LEP printing composition, the second resin component having a melting point of from about 50° C. to about 75° C.Type: GrantFiled: January 20, 2015Date of Patent: August 7, 2018Assignee: HP Indigo B.V.Inventors: Hannoch Ron, Shai Lior, Mark Sandler, Gleb Romantcov, Daniel Skvirsky
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Publication number: 20180129151Abstract: A method of operating an electrophotographic printer (100) to control the optical density of a printed image is described. The method comprises providing a printing substance on a transfer member (104); emitting a pulse of heat to heat the printing substance on the transfer member to increase flowability of the printing substance on the transfer member; and transferring, from the transfer member to a substrate (108), the printing substance heated by the pulse of heat so as to provide the printed image on the substrate.Type: ApplicationFiled: July 28, 2015Publication date: May 10, 2018Applicant: HP INDIGO B.V.Inventors: Peter Nedelin, Mark Sandler, Shai Lior
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Publication number: 20180017896Abstract: In one example, a system for transferring an ink image from a photoconductor to a print substrate includes a transfer member having a light absorbing exterior surface to receive a liquid LEP ink image from the photoconductor and to release a molten toner layer to a print substrate and a light source to expose a width of the surface carrying the liquid ink image to a light beam delivering enough power to transform the liquid ink image into a molten toner layer.Type: ApplicationFiled: March 6, 2015Publication date: January 18, 2018Applicant: HP INDIGO B.V.Inventors: Mark Sandler, Peter Nedelin, Shai Lior
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Publication number: 20180017899Abstract: In an example, an apparatus is described that includes a photosensitive imaging plate, an intermediate transfer member, and a heating unit. The photosensitive imaging plate attracts a layer of printing fluid. The intermediate transfer member contacts the photosensitive imaging plate and receives the layer of printing fluid from the photosensitive imaging plate. The heating unit includes an array of individually addressable heating elements and heats the intermediate transfer member in a manner that is spatially selective along two axes: a first axis in a direction of a width of the intermediate transfer member and a second axis in a direction of a rotation of the intermediate transfer member.Type: ApplicationFiled: April 22, 2015Publication date: January 18, 2018Inventors: Shai Lior, Mark Sandler, Peter Nedelin, Guy Hamou
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Publication number: 20170329270Abstract: Herein is disclosed a method of electrostatic printing and foiling comprising: forming a coloured toner image on a print substrate by electrostatically printing an electrostatic ink comprising a first resin component comprising an ethylene acrylic acid resin, an ethylene methacrylic acid resin or combinations thereof; forming an adhesive toner image disposed on the coloured toner image on the print substrate by electrostatically printing a liquid electro photographic (LEP) printing composition comprising a first resin component comprising an ethylene acrylic acid resin, an ethylene methacrylic acid resin or combinations thereof, and a second resin component present in an amount of about 20% to about 80% by weight of total solids content of the LEP printing composition, the second resin component having a melting point of from about 50° C. to about 75° C.Type: ApplicationFiled: January 20, 2015Publication date: November 16, 2017Inventors: Hannoch Ron, Shai Lior, Mark Sandler, Gleb Romantcov, Daniel Skvirsky
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Publication number: 20170329259Abstract: Herein is disclosed a method of electrostatic printing and glossing comprising: forming a first toner image on a print substrate by electrostatically printing an electrostatic ink comprising a first resin component comprising an ethylene acrylic acid resin, an ethylene methacrylic acid resin or combinations thereof; forming a second toner image disposed on the first toner image on the print substrate by electrostatically printing a liquid electro photographic (LEP) printing composition comprising a first resin component comprising an ethylene acrylic acid resin, an ethylene methacrylic acid resin or combinations thereof, and a second resin component present in an amount of about 20% to about 80% by weight of total solids content of the LEP printing composition, the second resin component having a melting point of from about 50° C. to about 75° C., which is below the melting point of the first resin component, or from about 140° C. to about 180° C.Type: ApplicationFiled: January 20, 2015Publication date: November 16, 2017Applicant: Hewlett-Packard Indigo B.V.Inventors: Hannoch Ron, Shai Lior, Mark Sandler, Gleb Romantcov, Daniel Skvirsky
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Publication number: 20170329268Abstract: A method for determining coat weight of a printed transparent electrophotographic composition is described, in which a calibration composition is added to a transparent liquid electrophotographic composition to produce a test composition, the calibration composition comprising a carrier liquid, a polymer resin, and at least 5 wt. % of an optical brightening agent based on the total solids content of the calibration composition. The test composition is electrophotographically printed onto a test substrate to produce the printed transparent electrophotographic ink composition; the fluorescence of the printed transparent electrophotographic composition is measured; and the coat weight of the printed transparent electrophotographic composition is determine based on the fluorescence of the printed transparent electrophotographic composition.Type: ApplicationFiled: January 19, 2015Publication date: November 16, 2017Inventors: Inna Tzomik, Hannoch Ron, Shai Lior, Gleb Romantcov
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Patent number: 9817339Abstract: Apparatus is described which, in use, applies a thin film of a wetting agent, such as water or a water-based solution, onto paper or other print medium before applying a liquid toner. The wetting agent is applied at a predetermined distance from an image transfer area. The wetting agent acts to promote adhesion of the liquid toner to the print medium. The adhesion of the liquid toner to the print medium is further improved by supplying the wetting agent at a temperature higher than room temperature.Type: GrantFiled: June 30, 2016Date of Patent: November 14, 2017Assignee: HP Indigo B.V.Inventors: Peter Nedelin, Mark Sandler, Shai Lior