Patents Assigned to HP INDIGO B.V.
  • Publication number: 20240116303
    Abstract: In one example of the disclosure, a substantially transparent substrate is provided at a printer. A primer layer is applied upon a first surface of the substrate. A security ink layer that includes security information is applied upon the primer layer. An opaque background ink layer is applied upon the security ink layer. A corona treatment is applied to a second surface, located on an opposite side of the substrate relative to the first surface. A release ink layer is applied upon the corona-treated second surface. An opaque cover image ink layer is applied upon the release ink layer.
    Type: Application
    Filed: December 15, 2023
    Publication date: April 11, 2024
    Applicant: HP INDIGO B.V.
    Inventors: Yavin ATZMON, Inna TZOMIK
  • Patent number: 11878541
    Abstract: In one example of the disclosure, a substantially transparent substrate is provided at a printer. A primer layer is applied upon a first surface of the substrate. A security ink layer that includes security information is applied upon the primer layer. An opaque background ink layer is applied upon the security ink layer. A corona treatment is applied to a second surface, located on an opposite side of the substrate relative to the first surface. A release ink layer is applied upon the corona-treated second surface. An opaque cover image ink layer is applied upon the release ink layer.
    Type: Grant
    Filed: January 20, 2021
    Date of Patent: January 23, 2024
    Assignee: HP INDIGO B.V.
    Inventors: Yavin Atzmon, Inna Tzomik
  • Patent number: 11772921
    Abstract: A printing system comprises a print station and print medium transport system. The print medium transport system comprises a track and a transport apparatus engaged with the track. The track defines a transport path past the print station, the transport path has a print medium entry point and a print medium exit point. The transport apparatus comprises: a drive for moving the transport apparatus along the track; and a gripping system. The gripping system can be moved between a first position in which a sheet of print medium is gripped and a second position in which the sheet of print medium is released. In use, the gripping system is configured to be in the first position when the transport apparatus is in motion along the track from the print medium entry point to the print medium exit point.
    Type: Grant
    Filed: July 28, 2017
    Date of Patent: October 3, 2023
    Assignee: HP INDIGO B.V.
    Inventors: Yechiam Koloditsky, Ilan Meiri, Avihay Menashe
  • Patent number: 11712883
    Abstract: In an example, a rotogravure printer roller is described. The printer roller (300) comprises a contact surface formed from a plurality of adjacent roller sections (302, 304). The roller sections are constructed and arranged to be removably assembled to form the roller.
    Type: Grant
    Filed: July 14, 2017
    Date of Patent: August 1, 2023
    Assignee: HP INDIGO B.V.
    Inventors: Lior Joseph, Regev Jekobson, Erez Kopel
  • Patent number: 11712752
    Abstract: According to some examples in the disclosure, a method may comprise providing a first stream of discrete volumes of material; and directing a pulsed laser beam at a first discrete volume of material in the first stream of discrete volumes of material so as to interact with the first discrete volume of material and thereby displace the first discrete volume away from the first stream. An apparatus and a system are also disclosed.
    Type: Grant
    Filed: July 15, 2021
    Date of Patent: August 1, 2023
    Assignee: HP Indigo B.V.
    Inventors: Boaz Tagansky, Gil Fisher, Michael Plotkin, Mark Sandler, Albert Teishev
  • Patent number: 11686752
    Abstract: In an example, monitoring circuitry includes a first and a second coupling to electrically connect the monitoring circuitry to a monitored circuit having a resistance. The resistance of the monitored circuit may be indicative of a status, and the monitored circuit may be connected in series between the first and second coupling. The first coupling comprises a plurality of galvanically separated connection elements which are to form an electrical connection with a common connection element of the monitored circuit. The monitoring circuitry further comprises a monitoring apparatus to determine the resistance of the monitored circuit via the first coupling and the second coupling. The monitoring apparatus is to acquire a plurality of electrical values and to use the plurality of electrical values to determine a value of the resistance of the monitored circuit.
    Type: Grant
    Filed: April 23, 2021
    Date of Patent: June 27, 2023
    Assignee: HP INDIGO B.V.
    Inventor: Gideon Amir
  • Patent number: 11638927
    Abstract: There is disclosed a selective wetting apparatus comprising a roller rotatable about a roller axis and comprising a wettable roller surface; an applicator unit having a lip which extends parallel to the roller axis and is radially spaced apart from the roller surface by a gap, wherein the applicator unit is to convey liquid agent towards the roller so that the liquid agent forms a liquid bridge over the gap to wet a wetted axial portion of the roller surface; and a flow guide to direct a gas flow into a regulated axial portion of the gap to locally prevent formation of a liquid bridge, and thereby prevent wetting of a corresponding axial portion of the roller surface.
    Type: Grant
    Filed: September 15, 2017
    Date of Patent: May 2, 2023
    Assignee: HP Indigo B.V.
    Inventors: Alex Lipnizkiy, Mordechai Arenson, Marko Richter, Yossi Yaacobov, Gil Fisher, Michael Vinokur, Nadav Shalem, Chen Talmor
  • Publication number: 20230015928
    Abstract: A liquid electrophotographic (LEP) printing device that includes a photo-imaging plate (PIP) to receive a liquid printing fluid, the liquid printing fluid including a pigment incorporated into a resin, a charge conductor, and a carrier liquid, and a transfer roller to transfer the liquid printing fluid from the PIP to a fabric substrate while wet.
    Type: Application
    Filed: September 27, 2022
    Publication date: January 19, 2023
    Applicant: HP INDIGO B.V.
    Inventors: Harsh Pranav DESAI, Evgeny KOROL, Avinoam HALPERN
  • Patent number: 11525795
    Abstract: Apparatus and methods are provided for measuring the dryness of primer on a substrate in an inline priming system. In implementations, the apparatus comprises a plurality of measurement electrodes spaced laterally to extend across and contact a primed surface of a substrate following application of a primer to the substrate as it is fed through the inline priming system. A resistance measurement unit is provided as part of the dryness measuring apparatus to, in use, measure the surface resistance of the primed substrate between different measurement electrodes across the primed surface of a substrate. A controller is provided in the dryness measurement apparatus, the controller arranged to, in use: receive the measured surface resistance value and to generate, based on the measured surface resistance values, a dryness profile indicative of the dryness of the primer at locations across the substrate in the direction of the spacing of the electrodes.
    Type: Grant
    Filed: November 18, 2020
    Date of Patent: December 13, 2022
    Assignee: HP Indigo B.V.
    Inventors: Matan Schneider, Eli Shoshani, Fernanda Orlik
  • Patent number: 11485127
    Abstract: A process for preparing a printed rigid plastic substrate is described, the process comprising: providing a rigid plastic substrate comprising a primer on a surface of the rigid plastic substrate, the primer comprising a primer resin; printing a liquid electrophotographic ink composition comprising a thermoplastic resin onto the primer on the surface of the rigid plastic substrate; depositing a cross-linking composition comprising a cross-linker onto the printed electrophotographic ink composition disposed on the primer; and laminating the rigid plastic substrate with a flexible film such that the ink composition and the cross-linker are disposed between the rigid substrate and the flexible film and wherein the lamination of the rigid substrate with the flexible film causes cross-linking of the thermoplastic resin of the ink composition and of the primer resin.
    Type: Grant
    Filed: December 19, 2017
    Date of Patent: November 1, 2022
    Assignee: HP Indigo B.V.
    Inventors: Dafna Or-Chen, Keren Nadav, Dani Tulchinski
  • Patent number: 11487225
    Abstract: A liquid electrophotographic (LEP) printing device that includes a photo-imaging plate (PIP) to receive a liquid printing fluid, the liquid printing fluid including a pigment incorporated into a resin, a charge conductor, and a carrier liquid, and a transfer roller to transfer the liquid printing fluid from the PIP to a fabric substrate while wet.
    Type: Grant
    Filed: October 13, 2017
    Date of Patent: November 1, 2022
    Assignee: HP Indigo B.V.
    Inventors: Harsh Pranav Desai, Evgeny Korol, Avinoam Halpern
  • Patent number: 11480911
    Abstract: In an example, a method includes receiving, by at least one processor, an instruction to print a user specified printing task to at least one media sheet. Print operation instructions may be determined. Such print operation instructions may comprise instructions to control a print apparatus to print the user specified printing task and instructions to control a print apparatus to carry out at least one cleaning operation, wherein the cleaning operation comprises duplex printing a print media sheet.
    Type: Grant
    Filed: October 6, 2016
    Date of Patent: October 25, 2022
    Assignee: HP Indigo B.V.
    Inventors: Vitaly Portnoy, Michel Assenheimer, Yoav Nachmias
  • Patent number: 11474455
    Abstract: An example system includes a conveyor. The conveyor is not a photoconductor. The system also includes a developer unit. The developer unit is to internally concentrate printing liquid. The developer unit also is to deliver the printing liquid to the conveyor. The system includes a wiper in contact with the conveyor. The wiper is to remove the printing liquid from the conveyor.
    Type: Grant
    Filed: November 19, 2020
    Date of Patent: October 18, 2022
    Assignee: HP Indigo B.V.
    Inventors: Peter Nedelin, Shai Lior, Mark Sandler
  • Patent number: 11448989
    Abstract: A printing apparatus is described in which a guide member biases a printing substrate with a layer of printing fluid toward an electrode array with a plurality of electrodes. Processing circuitry determines a dryness of the layer of printing fluid based on an output of the electrode array when the plurality of electrodes is in electrical contact with the printing substrate.
    Type: Grant
    Filed: May 28, 2020
    Date of Patent: September 20, 2022
    Assignee: HP Indigo B.V.
    Inventors: Matan Schneider, Fernanda Orlik
  • Patent number: 11442373
    Abstract: An electrostatic ink composition comprising a carrier liquid; a first resin comprising a copolymer of an alkylene monomer and a methacrylic acid monomer; and a second resin comprising a copolymer of an alkylene monomer and an acrylic acid monomer, wherein the second resin constitutes at least 35 wt. % of the total amount of resin is disclosed.
    Type: Grant
    Filed: July 10, 2017
    Date of Patent: September 13, 2022
    Assignee: HP Indigo B.V.
    Inventors: Hanit Marom Tchaicheeyan, Albert Teishev, Igor Shutyi, Yael Kowal-Blau, Matan Schneider
  • Patent number: 11433663
    Abstract: In an example, a method includes rotating a print apparatus component to be cleaned about a first rotational axis. A cleaning element having a cleaning surface in contact with the print apparatus component may be driven such that the cleaning surface has a component of motion which is parallel to the first rotational axis in a contact region. A relative velocity of the cleaning element and the print apparatus component may be varied during a cleaning operation.
    Type: Grant
    Filed: September 14, 2017
    Date of Patent: September 6, 2022
    Assignee: HP Indigo B.V.
    Inventors: Lavi Cohen, Minedys Macias Guzman, Michael Vinokur
  • Patent number: 11409211
    Abstract: In one example of the disclosure, a first transfer of ink is made from a photoconductor to a blanket in contact with the photoconductor. The blanket is to cycle along a path. The first transfer occurs at a first arc of the blanket path. A second transfer of the ink is made from the blanket to a media in contact with the blanket. The second transfer occurs at a second arc of the blanket path. A heat source located adjacent to a third arc of the blanket path is utilized to heat an external surface of the blanket. The heating is to occur following the second transfer of the ink.
    Type: Grant
    Filed: October 8, 2020
    Date of Patent: August 9, 2022
    Assignee: HP Indigo B.V.
    Inventors: Peter Nedelin, Mark Sandler, Shai Lior
  • Patent number: 11402771
    Abstract: In one aspect an apparatus for use in an electrographic printer is described. The apparatus includes a housing defining a cavity, a developer roller, a developer electrode for developing printing substance onto the developer roller, the electrode being arranged within the cavity, and a heater for heating printing substance to be developed onto the developer roller, the heater being arranged in the cavity.
    Type: Grant
    Filed: April 14, 2021
    Date of Patent: August 2, 2022
    Assignee: HP Indigo B.V.
    Inventors: Shachar Berger, Shmuel Borenstain, Regina Guslitzer, Gregory Katz
  • Patent number: 11385572
    Abstract: A print agent application assembly includes a print agent transfer roller to receive print agent and transfer a portion of the print agent to a photoconductive surface. The assembly may also include a print agent regulator roller to regulate a film thickness of print agent on the print agent transfer roller. The assembly may also include a mechanism to generate an oscillating force to be applied to print agent on the print agent transfer roller. A method and a print apparatus are also disclosed.
    Type: Grant
    Filed: September 21, 2017
    Date of Patent: July 12, 2022
    Assignee: HP Indigo B.V.
    Inventors: Shachar Berger, Alon Froom, Sagie Shanun, Oran Levintant
  • Patent number: 11378455
    Abstract: In an example of the disclosure, a device (38) includes: an acquiring unit to obtain first reflectance output values acquired from reference samples (52) by a reference color measuring device and to obtain second reflectance output values acquired from the reference samples (52) by a second color measuring device (2); a processing unit to determine, for a plurality of wavelength values, correspondences between a first reflectance output value acquired by the reference color measuring device and a second reflectance output value acquired by the second color measuring device, and to perform, for each wavelength value, an interpolation based on the correspondences to obtain interpolation data; and a correcting unit to correct, based on the interpolation data, third reflectance output values acquired by the second color measuring device (2) from a sample of interest (12).
    Type: Grant
    Filed: October 11, 2016
    Date of Patent: July 5, 2022
    Assignee: HP Indigo B.V.
    Inventors: Nir Guttman, Ziv Berkovich, Gil Arie Uner