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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Publication number: 20170082941Abstract: 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: ApplicationFiled: November 29, 2016Publication date: March 23, 2017Applicant: HEWLETT-PACKARD INDIGO B.V.Inventors: Mark Sandler, Shai Lior
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Patent number: 9547260Abstract: Disclosed herein is a method for electrostatic printing, wherein the method comprises (a) providing an ink composition comprising particles comprising a resin, wherein the ink composition contains less than 0.3 mg of charge director per g of solids in the ink composition; (b) passing the ink composition between a first electrode and a developer roller, wherein sufficient potential is applied between the developer roller and the electrode such that the resin particles are charged and adhere to the developer roller; (c) transferring at least some of the particles from the developer roller to a photoimaging plate to form an image on the photoimaging plate; and (d) transferring the image from the photoimaging plate to a print medium. Also disclosed here is an apparatus for carrying out the method, and a print medium printed using the method.Type: GrantFiled: November 30, 2015Date of Patent: January 17, 2017Assignee: Hewlett-Packard Indigo B.V.Inventors: Shai Lior, Mark Sandler, Peter Nedelin
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Patent number: 9535359Abstract: A system and method to compensate for ghost appearances on a print due to a previous job, the method comprising defining areas in which ghosting is expected or detected and recording the image on a photoreceptor by selectively changing the parameters of the system as a function of position, to compensate for the effects of ghosting in ex-image and ex-nonimage areas.Type: GrantFiled: April 30, 2007Date of Patent: January 3, 2017Assignee: Hewlett-Packard Indigo B.V.Inventors: Mark Sandler, Shai Lior
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Patent number: 9511304Abstract: Disclosed herein is a method for concentrating an ink composition, wherein the method comprises the steps of: (a) providing an ink composition, the ink composition comprising a liquid carrier and particles comprising a resin and a colorant, and wherein the ink composition contains less than 0.Type: GrantFiled: January 18, 2013Date of Patent: December 6, 2016Assignee: Hewlett-Packard Indigo B.V.Inventors: Mark Sandler, Shai Lior, Avner Schneider
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Publication number: 20160231667Abstract: In some examples, an image forming apparatus includes a photoconductive member to move in a rotational direction, a charging unit to charge the photoconductive member, a discharging unit to discharge a portion of the photoconductive member to form a latent image thereon, and a plurality of ink applicator units to sequentially apply a plurality of ink layers, respectively, toward the latent image to form an ink image. The image forming apparatus may also include an image transfer blanket to receive the ink image including the plurality of ink layers from the photoconductive member.Type: ApplicationFiled: April 4, 2016Publication date: August 11, 2016Inventors: Peter Nedelin, Mark Sandler, Shai Lior
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Patent number: 9405231Abstract: 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: July 12, 2012Date of Patent: August 2, 2016Assignee: Hewlett-Packard Indigo B.V.Inventors: Peter Nedelin, Mark Sandler, Shai Lior
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Publication number: 20160200093Abstract: An embossing apparatus includes an embossing die that includes a printed relief pattern made up of multiple layers of a deposited material. A resilient surface presses media against the embossing die such that embossed features corresponding to the embossing die are formed in the media. A method for embossing media includes forming an embossing die by depositing multiple layers of ink on a impression layer to form a relief pattern and pressing media against the embossing die to transfer the relief image to the media.Type: ApplicationFiled: March 21, 2016Publication date: July 14, 2016Applicant: HEWLETT-PACKARD INDIGO B.V.Inventors: Mark Sandler, Shai Lior, Eyal Peleg, Nati Sinuany, Dror Kella, Shahar Stein, George Trendafilov, Tsahi Rosenbaom
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Patent number: 9383687Abstract: An image forming apparatus includes a photoconductive member to move in a rotational direction, a charging unit to charge the photoconductive member, a discharging unit to discharge a portion of the photoconductive member to form a latent image thereon, and a plurality of ink applicator units to sequentially apply a plurality of ink layers, respectively, toward the latent image to form an ink image. The image forming apparatus may also include an image transfer blanket to receive the ink image including the plurality of ink layers from the photoconductive member.Type: GrantFiled: December 21, 2011Date of Patent: July 5, 2016Assignee: Hewlett-Packard Indigo B.V.Inventors: Peter Nedelin, Mark Sandler, Shai Lior
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Patent number: 9375653Abstract: Disclosed herein is a method for concentrating an ink composition, wherein the method comprises the steps of: (a) providing an ink composition, the ink composition comprising a liquid carrier and particles comprising a resin and a colorant, and wherein the ink composition contains less than 0.Type: GrantFiled: July 13, 2015Date of Patent: June 28, 2016Assignee: Hewlett-Packard Indigo B.V.Inventors: Mark Sandler, Shai Lior, Avner Schneider
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Patent number: 9377720Abstract: Disclosed herein is a method for electrophotographic printing, the method comprising: transferring, separately, from a photo imaging plate, a plurality of images formed from different colored electrostatic ink compositions to an intermediate transfer member to form a print image on the intermediate transfer member; providing a print substrate that has been wetted with a protic solvent; transferring the print image to the print substrate. Also disclosed herein is an apparatus for electrophotographic printing.Type: GrantFiled: January 29, 2013Date of Patent: June 28, 2016Assignee: Hewlett-Packard Indigo B.V.Inventors: Shai Lior, Mark Sandler, Peter Nedelin
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Patent number: 9327295Abstract: The present disclosure relates to a method for concentrating a substance, which may be an electrostatic printing ink. An apparatus for concentrating a substance is also described.Type: GrantFiled: July 24, 2012Date of Patent: May 3, 2016Assignee: Hewlett-Packard Indigo B.V.Inventors: Shai Lior, Avner Schneider, Mark Sandler, Yaron Peri
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Patent number: 9296199Abstract: An embossing apparatus includes an embossing die that includes a printed relief pattern made up of multiple layers of a deposited material. A resilient surface presses media against the embossing die such that embossed features corresponding to the embossing die are formed in the media. A method for embossing media includes forming an embossing die by depositing multiple layers of ink on a impression layer to form a relief pattern and pressing media against the embossing die to transfer the relief image to the media.Type: GrantFiled: May 11, 2011Date of Patent: March 29, 2016Assignee: Hewlett-Packard Indigo B.V.Inventors: Mark Sandler, Shai Lior, Eyal Peleg, Nati Sinuany, Dror Kella, Shahar Stein, George Trendafilov, Tsahi Rosenbaom
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Publication number: 20160085183Abstract: Disclosed herein is a method for electrostatic printing, wherein the method comprises (a) providing an ink composition comprising particles comprising a resin, wherein the ink composition contains less than 0.3 mg of charge director per g of solids in the ink composition; (b) passing the ink composition between a first electrode and a developer roller, wherein sufficient potential is applied between the developer roller and the electrode such that the resin particles are charged and adhere to the developer roller; (c) transferring at least some of the particles from the developer roller to a photoimaging plate to form an image on the photoimaging plate; and (d) transferring the image from the photoimaging plate to a print medium. Also disclosed here is an apparatus for carrying out the method, and a print medium printed using the method.Type: ApplicationFiled: November 30, 2015Publication date: March 24, 2016Applicant: Hewlett-Packard Indigo B.V.Inventors: Shai LIOR, Mark Sandler, Peter Nedelin
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Patent number: 9291927Abstract: The present application relates to a method for concentrating an ink for an electrostatic printing process, wherein the method comprises the steps of: (a) providing the ink for an electrostatic printing process, the ink comprising chargeable particles in a liquid carrier; (b) passing the ink between a chargeable conveyor and a first electrode, wherein a potential is applied such that the ink becomes adhered to the chargeable conveyor; (c) passing the ink on the conveyor past a moving surface, wherein the ink contacts the moving surface and a potential is applied between the conveyor and the moving surface, such that the chargeable particles are disposed to move toward the conveyor and some of the liquid carrier is removed to increase the concentration of the chargeable particles in the liquid carrier on the conveyor to form a concentrated ink on the conveyor, the conveyor and the moving surface then diverging from one another, such that substantially all of the concentrated ink remains on the conveyor; (d)Type: GrantFiled: September 9, 2011Date of Patent: March 22, 2016Assignee: Hewlett-Packard Indigo B.V.Inventors: Mark Sandler, Shai Lior, Avner Schneider, Eyal Bachar
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Patent number: 9244389Abstract: A printing system utilizing inks with high solids content includes a mixing unit for receiving a high solids content ink and producing a concentrated ink and an interim tank for receiving the concentrated ink from the mixing unit. An ink tank receives the concentrated ink from the interim tank and produces printing ink. An liquid electro-photographic print engine receives the printing ink from the ink tank. A fluid return line is connected between the mixing unit and at least one of the interim tank and the ink tank, the mixing unit receiving fluid from at least one of the interim tank and the ink tank and mixing the fluid with the high solids content ink. A method for liquid electro photographic printing using high solid content ink is also provided.Type: GrantFiled: January 20, 2015Date of Patent: January 26, 2016Assignee: Hewlett-Packard Development Company, L.P.Inventors: Mark Sandler, Shai Lior, Avner Schneider
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Patent number: 9223253Abstract: Disclosed herein is a method for electrostatic printing, wherein the method comprises (a) providing an ink composition comprising particles comprising a resin, wherein the ink composition contains less than 0.3 mg of charge director per g of solids in the ink composition; (b) passing the ink composition between a first electrode and a developer roller, wherein sufficient potential is applied between the developer roller and the electrode such that the resin particles are charged and adhere to the developer roller; (c) transferring at least some of the particles from the developer roller to a photoimaging plate to form an image on the photoimaging plate; and (d) transferring the image from the photoimaging plate to a print medium. Also disclosed here is an apparatus for carrying out the method, and a print medium printed using the method.Type: GrantFiled: January 20, 2012Date of Patent: December 29, 2015Assignee: Hewlett-Packard Indigo B.V.Inventors: Shai Lior, Mark Sandler, Peter Nedelin
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Publication number: 20150323889Abstract: Disclosed herein is a method for electrophotographic printing, the method comprising: transferring, separately, from a photo imaging plate, a plurality of images formed from different colored electrostatic ink compositions to an intermediate transfer member to form a print image on the intermediate transfer member; providing a print substrate that has been wetted with a protic solvent; transferring the print image to the print substrate. Also disclosed herein is an apparatus for electrophotographic printing.Type: ApplicationFiled: January 29, 2013Publication date: November 12, 2015Inventors: SHAI LIOR, MARK SANDLER, PETER NEDELIN
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Publication number: 20150321117Abstract: Disclosed herein is a method for concentrating an ink composition, wherein the method comprises the steps of: (a) providing an ink composition, the ink composition comprising a liquid carrier and particles comprising a resin and a colorant, and wherein the ink composition contains less than 0.Type: ApplicationFiled: July 13, 2015Publication date: November 12, 2015Inventors: Mark Sandler, Shai Lior, Avner Schneider
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Patent number: 9176432Abstract: An intermediate transfer member (34) (ITM) transfers ink solids from an image bearing surface to a substrate. The ITM has an outermost surface having an absorptivity of less than or equal to about 5 percent when measured after 36 hours of immersion in Isopar L at 100 degrees Celsius. An imaging liquid developer system (22) deposits the ink solids and an ink solids carrier onto the outermost surface of the ITM, wherein the imaging liquid developer system (22) is configured to supply the ink solids carrier at a reduced thickness or reduced density as compared to more absorptive ITMs.Type: GrantFiled: February 16, 2015Date of Patent: November 3, 2015Assignee: Hewlett-Packard Indigo B.V.Inventors: Mark Sandler, Shai Lior
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Publication number: 20150301482Abstract: A printing system utilizing inks with high solids content includes a mixing unit for receiving a high solids content ink and producing a concentrated ink and an interim tank for receiving the concentrated ink from the mixing unit. An ink tank receives the concentrated ink from the interim tank and produces printing ink. An liquid electro-photographic print engine receives the printing ink from the ink tank. A fluid return line is connected between the mixing unit and at least one of the interim tank and the ink tank, the mixing unit receiving fluid from at least one of the interim tank and the ink tank and mixing the fluid with the high solids content ink. A method for liquid electro photographic printing using high solid content ink is also provided.Type: ApplicationFiled: January 20, 2015Publication date: October 22, 2015Inventors: Mark Sandler, Shai Lior, Avner Schneider