Patents Assigned to Hewlett-Packard Indigo B.V.
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Patent number: 8988733Abstract: A method to generate an image in which a plurality of offset vectors for portions of a first image are determined by comparing the similarity of the portions to portion of a second image.Type: GrantFiled: April 16, 2013Date of Patent: March 24, 2015Assignee: Hewlett-Packard Indigo B.V.Inventors: Oren Haik, Oded Perry, Smadar Shiffman, Liron Itan
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Patent number: 8989617Abstract: In one example, a climate control system for a printer includes: an air flow path from an intake for receiving warmer, dirtier aft from a printing area of the printer to an exhaust for returning cooler, cleaner air to the printing area of the printer; a first heat exchanger in the flow path for exchanging heat between warmer air coming from the intake and cooler air going to the exhaust; and a second heat exchanger in the flow path for receiving warmer, dirtier air from the first heat exchanger and passing cooler, cleaner air to the first heat exchanger. The second heat exchanger is configured to cool the air to a predetermined dew point temperature corresponding to a desired level of a contaminant in the air.Type: GrantFiled: May 24, 2011Date of Patent: March 24, 2015Assignee: Hewlett-Packard Indigo B.V.Inventors: Nadav Shalem, Moshe Peles, Michael Melnik
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Patent number: 8983321Abstract: A method includes controlling a charge level of fluid in a fluid chamber by detecting at least one fluid parameter corresponding to a charge level of a fluid in a fluid chamber having at least charge directors and carrier liquid, and controlling the charge level of the fluid based on the detected fluid parameter.Type: GrantFiled: August 20, 2010Date of Patent: March 17, 2015Assignee: Hewlett-Packard Indigo B.V.Inventors: Elliad Silcoff, Eyal Bachar, Kobi Shkuri, Nava Klein
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Patent number: 8967611Abstract: In an embodiment, a processor-readable medium stores code representing instructions that when executed by a processor cause the processor to receive sheet length data for two paper sheets of a same standard dimension passing consecutively through a printing device. The processor calculates a length difference between the two paper sheets, and when the length difference exceeds a two-sheet threshold, it initiates an alignment correction cycle in a paper finishing device.Type: GrantFiled: May 31, 2013Date of Patent: March 3, 2015Assignee: Hewlett-Packard Indigo B.V.Inventors: Lior Joseph, Avihay Menashe, Itzik Kent
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Publication number: 20150036946Abstract: A system includes a structure module, graininess module, mottle module, and standard deviation (STD) module. The structure module is to identify a structure metric based on an input digital image, and remove a structured nonuniformity from the input digital image to produce a second input digital image. The graininess module is to identify a graininess metric based on the second input digital image. The mottle module is to identify a mottle metric based on the second input digital image. The STD module is to identify a STD metric that is to correspond to overall smoothness of the input digital image.Type: ApplicationFiled: July 30, 2013Publication date: February 5, 2015Applicant: HEWLETT-PACKARD INDIGO B.V.Inventors: Oren Haik, Tal Frank, Tamar Kashti
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Publication number: 20150031515Abstract: A cast device useable with an image forming apparatus is provided. The cast device includes at least one tube and a cast body. The cast body includes the at least one tube implanted into the cast body using a combined casting process.Type: ApplicationFiled: January 31, 2012Publication date: January 29, 2015Applicant: Hewlett-Packard Indigo B.V.Inventors: Avichay Mor-Yosef, Eran Schwimmer, Yaniv Yona
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Patent number: 8935980Abstract: A printing device (100,101) has a first print engine (103, 303, 603, 703), a second print engine (105, 305, 605, 705), and a buffer device (107, 307, 609, 709, 711) disposed between the first (103, 303, 603, 703) and second print engines (105, 305, 605, 705). The buffer (107, 307, 609, 709, 711) is configured to store a variable amount of web substrate (106, 301, 713) received from the first print engine (103, 303, 603, 703) and feed the substrate (106, 301, 713) to the second print engine (105, 305, 605, 705).Type: GrantFiled: February 29, 2008Date of Patent: January 20, 2015Assignee: Hewlett-Packard Indigo B.V.Inventors: Benji Ruhm, Zvika Yogev, Eyal Peleg
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Patent number: 8934142Abstract: A halftone screen may be used to transform a continuous tone image into a halftone image. Determining the halftone screen may include determining a first halftone tile for a first gray level, selecting pixel locations and increasing the intensity of pixels at the locations to activate the pixels to form a second halftone tile for a subsequent gray level. A filtered image may be generated from the second halftone tile, and pixels from the filtered image may be used to generate the halftone screen.Type: GrantFiled: April 30, 2013Date of Patent: January 13, 2015Assignee: Hewlett-Packard Indigo B.V.Inventors: Tamar Kashti, Tal Frank, Oren Haik
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Patent number: 8927635Abstract: Positively charged ink compositions, its use and method of making the same are disclosed. A disclosed example of the positively charged ink compositions includes a combination of a carrier liquid, basic pigment-loaded resin particles, a charge director and an acidic charge adjuvant.Type: GrantFiled: March 9, 2010Date of Patent: January 6, 2015Assignee: Hewlett-Packard Indigo B.V.Inventors: Yaron Grinwald, Gil Bar-Haim, Yigal Berson
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Publication number: 20150004378Abstract: There is provided a method for electrostatic printing comprising providing a print substrate having a layer comprising a polymeric material, the layer comprising a polymeric material having thereon a surface layer comprising an aminofunctional silane; carrying out an electrostatic printing process to transfer an ink onto the surface layer comprising the aminofunctional silane. Also disclosed herein are print substrates producible by the method, and print substrates for use in the method.Type: ApplicationFiled: February 15, 2012Publication date: January 1, 2015Applicant: Hewlett-Packard Indigo B.V.Inventors: Hannoch Ron, Inna Tzomik, Shani Maor, Eran Goldenberg
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Publication number: 20140375997Abstract: A method and apparatus to calculate the optical density of a fluid (110) traveling through a narrow gap (30) with a set width. Typically, a densitometer employs a light source (10) that is configured to transmit light across the gap and a detector, opposite the light source (10), configured to detect light transmitted from the light source, across the gap, for calculating the optical density of the fluid. The apparatus and method further include a transparent element (120), the transparent element part of a set of replaceable transparent elements, each replaceable transparent element having a particular width, the width less than the width of the gap. Typically, the transparent element is moved into the gap between the light source and the detector to narrow the effective sampling width of the gap for calculating the optical density of the fluid. In some examples, the transparent element is further configured to rotate in the gap to enhance the flow of the fluid through the gap.Type: ApplicationFiled: February 8, 2012Publication date: December 25, 2014Applicant: HEWLETT-PACKARD INDIGO B.V.Inventors: Ziv Gilan, Zvi Shemer, Zeharia Levi, Erez Lampert, Niv Shemtov
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Publication number: 20140363208Abstract: The present invention relates to a liquid electrophotographic ink comprising a carrier liquid, a pigmented resin composite dispersed in the carrier liquid, and about 0.15 to about 10% (w/w) of an organic wax. The liquid electrophotographic ink is typically formulated for printing in a liquid electrophotographic printer.Type: ApplicationFiled: December 19, 2011Publication date: December 11, 2014Applicant: Hewlett-Packard Indigo B.V.Inventors: Stella Stolin Roditi, Haim Cohen, Getahun Biadglin, Femanda Orilik, Nava Klein, Albert Teishev
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Publication number: 20140356029Abstract: 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: January 18, 2013Publication date: December 4, 2014Applicant: Hewlett-Packard Indigo B.V.Inventors: Mark Sandler, Shai Lior, Avner Schneider
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Patent number: 8887632Abstract: Image forming apparatus and methods are disclosed which include an intermediate transfer member to transfer images to media, an impression roller including a gripping device to receive the media, and a determination module to determine the length of the media held by the at least one gripper unit based on respective detections by first and second set of sensors.Type: GrantFiled: March 19, 2014Date of Patent: November 18, 2014Assignee: Hewlett-Packard Indigo B.V.Inventors: Michael Mehanik, Elad Fodor, Ayal Galili, Ittai Wiener
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Publication number: 20140320928Abstract: A halftone screen may be used to transform a continuous tone image into a halftone image. Determining the halftone screen may include determining a first halftone tile for a first gray level, selecting pixel locations and increasing the intensity of pixels at the locations to activate the pixels to form a second halftone tile for a subsequent gray level. A filtered image may be generated from the second halftone tile, and pixels from the filtered image may be used to generate the halftone screen.Type: ApplicationFiled: April 30, 2013Publication date: October 30, 2014Applicant: HEWLETT-PACKARD INDIGO B.V.Inventors: Tamar Kashti, Tal Frank, Oren Halk
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Publication number: 20140320565Abstract: A method of determining the velocity of relative displacement between a substrate and an image sensor, for example the velocity of displacement of a page relative to a scanner, involves imaging a reference pattern on the substrate, using the image sensor, while the relative displacement occurs between the substrate and the image sensor. The reference pattern includes plural crossing points marked at predetermined locations on the substrate, each crossing point formed of a first line portion crossing a second line portion. Locations in the image that correspond to the crossing points are compared to the predetermined locations on the substrate and the velocity of the relative displacement between the image sensor and the substrate is determined using relationships between the predetermined locations and the detected locations in the generated image.Type: ApplicationFiled: April 29, 2013Publication date: October 30, 2014Applicant: HEWLETT-PACKARD INDIGO B.V.Inventors: Liron Iton, Oren Haik, Oded Perry, Tal Frank
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Patent number: 8870329Abstract: Detecting an issue in a digital printer that has an optical element positioned to direct a laser beam towards a photoconductor surface may include sending optical element position commands to move the optical element to compensate for inconsistent movements of a photoconductor drum and creating a record of the optical element position commands.Type: GrantFiled: January 31, 2012Date of Patent: October 28, 2014Assignee: Hewlett-Packard Indigo B.V.Inventors: Haggai Abbo, Martin Chauvin, Omry Flum, Yuri Baril, Sharon Nagler, Craig Breen, Shai Druckman, Ami Shiff, Avner Arnstein
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Publication number: 20140307275Abstract: A method to generate an image in which a plurality of offset vectors for portions of a first image are determined by comparing the similarity of the portions to portion of a second image.Type: ApplicationFiled: April 16, 2013Publication date: October 16, 2014Applicant: Hewlett-Packard Indigo B.V.Inventors: Oren Haik, Oded Perry, Smadar Shiffman, Liron Itan
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Patent number: 8857333Abstract: A cam follower is affixed to a rotary component that is in mechanical communication with a rotary source such that the cam follower travels along a path when the first rotary source is operating. The cam follower is in mechanical communication with a mechanical component such that, when the cam follower is engaged with a retract dwell section of either of a dynamic cam or a static cam, the mechanical component is retracted. The static cam may be positioned to allow the mechanical component to retract for a predetermined portion of the path.Type: GrantFiled: February 28, 2012Date of Patent: October 14, 2014Assignee: Hewlett-Packard Indigo B.V.Inventors: Ofer Ben Bassat, Konstantin Kupershtoch, Avichay Mor-Yosef
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Publication number: 20140300911Abstract: A method to generate a histogram matched image in which a portion of a first reference image is partitioned into a plurality of regions. Histogram matching is performed separately on the plurality of regions of the first reference image and corresponding regions in a second image to generate a plurality of first histogram matched reference images. Histogram matching is also performed on the portion of the first reference image and a corresponding portion in the second image to generate a second histogram matched reference image. An area from one of at least a first histogram matched reference image and the second histogram matched reference image is selected to generate a finalized histogram matched reference image.Type: ApplicationFiled: April 3, 2013Publication date: October 9, 2014Applicant: Hewlett-Packard Indigo, B.V.Inventors: Smadar Shiffman, Oren Haik, Oded Perry