Patents by Inventor Lavi Cohen
Lavi Cohen 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).
-
Publication number: 20210129522Abstract: 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: ApplicationFiled: September 14, 2017Publication date: May 6, 2021Inventors: Lavi Cohen, Minedys Macias Guzman, Michael Vinokur
-
Patent number: 10990037Abstract: A developer for a printer for printing to a substrate; the developer comprising a plurality of rollers operable to influence forming an image; the plurality of rollers comprising a developer roller for bearing printing liquid for forming the image and a squeegee roller for cooperating with the developer roller to influence the printing liquid on the developer roller, the squeegee roller being operable, via a brake, to stop rotating relative to the developer roller to influence the printing liquid on the developer roller.Type: GrantFiled: November 29, 2017Date of Patent: April 27, 2021Assignee: Hewlett-Packard Development Company, L.P.Inventors: Asaf Shoshani, Lavi Cohen
-
Patent number: 10948853Abstract: In an example, charged particles suspended in a non-conductive fluid are fed to a transfer device. A width of a charged particles layer of uniform density on a surface of the transfer device is controlled. Charged particles are transferred from the charged particles layer to a photo imaging plate of a liquid electro-photographic printing system.Type: GrantFiled: March 31, 2017Date of Patent: March 16, 2021Assignee: HP Indigo B.V.Inventors: Lavi Cohen, Doron Schlumm, Asaf Shoshani
-
Patent number: 10875292Abstract: An example printing system for printing liquid ink has a developer device to transfer ink to an image plate of the printing system. The developer device has an ink inlet to receive ink from an ink reservoir of the printing system; a developer roller to transfer ink to the image plate, a motor to rotate the developer roller, and an ink sensor to detect arrival of ink at the developer device. The printing system is configured to start the motor in response to the ink sensor detecting arrival of ink at the developer device.Type: GrantFiled: April 5, 2017Date of Patent: December 29, 2020Assignee: HP INDIGO B.V.Inventors: Lavi Cohen, Asaf Shoshani
-
Patent number: 10877424Abstract: The present disclosure relates to an electrophotographic printer comprising a photoconductive cylinder, and a cleaning element comprising an absorbent foam substrate. The absorbent foam substrate has an abrasive material disposed on at least an outer surface of the absorbent foam substrate. At least part of the outer surface of the absorbent foam substrate is engageable with the photoconductive cylinder.Type: GrantFiled: September 15, 2017Date of Patent: December 29, 2020Assignee: HP Indigo B.V.Inventors: Lavi Cohen, Minedys Macias Guzman
-
Patent number: 10852667Abstract: In an example, a printing device comprises a component to engage with a surface, a first load sensor, a second load sensor and a controller. The component has a first part which is drivable to engage and disengage with the surface by a first engagement device and a second part which is drivable to engage and disengage with the surface by a second engagement device. The first load sensor is to measure a load on the first engagement device. The second load sensor is to measure a load on the second engagement device. The controller is to receive first load information from the first load sensor and second load information from the second load sensor; and determine whether or not to alter an operational parameter of the printing device, based on the received first load information and the received second load information.Type: GrantFiled: January 26, 2017Date of Patent: December 1, 2020Assignee: HP Indigo B.V.Inventors: Lavi Cohen, Alon Froom, Amit Porat, Asaf Shoshani
-
Patent number: 10802435Abstract: In one example, a development cycle of a binary ink developer, BID, is timed. Timing may be based on the length of a substrate in which the image is to be printed or the size of the image or the area to be printed with the ink associated to the BID.Type: GrantFiled: January 30, 2020Date of Patent: October 13, 2020Assignee: HP Indigo B.V.Inventors: Asaf Shoshani, Lavi Cohen, Ido Finkelman, Meir Grinstein
-
Publication number: 20200285171Abstract: A developer for a printer for printing to a substrate; the developer comprising a plurality of rollers operable to influence forming an image; the plurality of rollers comprising a developer roller for bearing printing liquid for forming the image and a squeegee roller for cooperating with the developer roller to influence the printing liquid on the developer roller, the squeegee roller being operable, via a brake, to stop rotating relative to the developer roller to influence the printing liquid on the developer roller.Type: ApplicationFiled: November 29, 2017Publication date: September 10, 2020Inventors: Asaf SHOSHANI, Lavi COHEN
-
Publication number: 20200233339Abstract: In an example, charged particles suspended in a non-conductive fluid are fed to a transfer device. A width of a charged particles layer of uniform density on a surface of the transfer device is controlled. Charged particles are transferred from the charged particles layer to a photo imaging plate of a liquid electro-photographic printing system.Type: ApplicationFiled: March 31, 2017Publication date: July 23, 2020Inventors: Lavi Cohen, Doron Schlumm, Asaf Shoshani
-
Publication number: 20200201236Abstract: The present disclosure relates to an electrophotographic printer comprising a photoconductive cylinder, and a cleaning element comprising an absorbent foam substrate. The absorbent foam substrate has an abrasive material disposed on at least an outer surface of the absorbent foam substrate. At least part of the outer surface of the absorbent foam substrate is engageable with the photoconductive cylinder.Type: ApplicationFiled: September 15, 2017Publication date: June 25, 2020Inventors: Lavi Cohen, Minedys Macias Guzman
-
Publication number: 20200201210Abstract: In an example, a method includes collecting (102) print agent from a print agent reservoir to form a print agent layer on a first print agent transfer member (204). The print agent layer may be transferred (104) directly from the first print agent transfer member to a second print agent transfer member (206), where the print agent layer may be heated (106). The print agent layer may be applied (108) directly from the second print agent transfer member to a substrate.Type: ApplicationFiled: September 13, 2017Publication date: June 25, 2020Inventors: Eyal Rosenwein, Matan Schneider, Lavi Cohen, Alex Feygelman
-
Publication number: 20200166880Abstract: In one example, a development cycle of a binary ink developer, BID, is timed. Timing may be based on the length of a substrate in which the image is to be printed or the size of the image or the area to be printed with the ink associated to the BID.Type: ApplicationFiled: January 30, 2020Publication date: May 28, 2020Applicant: HP INDIGO B.V.Inventors: Asaf Shoshani, Lavi Cohen, Ido Finkelman, Meir Grinstein
-
Patent number: 10649380Abstract: In one example, a development cycle of a binary ink developer, BID, is timed. Timing may be based on the length of a substrate in which the image is to be printed or the size of the image or the area to be printed with the ink associated to the BID.Type: GrantFiled: September 30, 2016Date of Patent: May 12, 2020Assignee: HP Indigo B.V.Inventors: Asaf Shoshani, Lavi Cohen, Ido Finkelman, Meir Grinstein
-
Publication number: 20200079075Abstract: An example printing system for printing liquid ink has a developer device to transfer ink to an image plate of the printing system. The developer device has an ink inlet to receive ink from an ink reservoir of the printing system; a developer roller to transfer ink to the image plate, a motor to rotate the developer roller, and an ink sensor to detect arrival of ink at the developer device. The printing system is configured to start the motor in response to the ink sensor detecting arrival of ink at the developer device.Type: ApplicationFiled: April 5, 2017Publication date: March 12, 2020Applicant: HP INDIGO B.V.Inventors: Lavi Cohen, Asaf Shoshani
-
Patent number: 10571830Abstract: In example implementations, an apparatus includes a planar surface, a curved mounting surface and a wiper blade. The curved mounting surface may be coupled adjacent to the planar surface. The wiper blade may be clamped to the planar surface. A bottom of the wiper blade can rest on the curved mounting surface such that a free length of the wiper blade is different at a plurality of points along a width of the wiper blade.Type: GrantFiled: May 3, 2019Date of Patent: February 25, 2020Assignee: HP Indigo B.V.Inventors: Eric G. Nelson, Lavi Cohen
-
Publication number: 20200050130Abstract: In an example, a printing device comprises a component to engage with a surface, a first load sensor, a second load sensor and a controller. The component has a first part which is drivable to engage and disengage with the surface by a first engagement device and a second part which is drivable to engage and disengage with the surface by a second engagement device. The first load sensor is to measure a load on the first engagement device. The second load sensor is to measure a load on the second engagement device. The controller is to receive first load information from the first load sensor and second load information from the second load sensor; and determine whether or not to alter an operational parameter of the printing device, based on the received first load information and the received second load information.Type: ApplicationFiled: January 26, 2017Publication date: February 13, 2020Applicant: HP Indigo B.V.Inventors: Lavi Cohen, Alon Froom, Amit Porat, Asaf Shoshani
-
Publication number: 20190258198Abstract: In one example, a development cycle of a binary ink developer, BID, is timed. Timing may be based on the length of a substrate in which the image is to be printed or the size of the image or the area to be printed with the ink associated to the BID.Type: ApplicationFiled: September 30, 2016Publication date: August 22, 2019Applicant: HP Indigo B.V.Inventors: Asaf Shoshani, Lavi Cohen, Ido Finkelman, Meir Grinstein
-
Publication number: 20190258193Abstract: In example implementations, an apparatus includes a planar surface, a curved mounting surface and a wiper blade. The curved mounting surface may be coupled adjacent to the planar surface. The wiper blade may be clamped to the planar surface. A bottom of the wiper blade can rest on the curved mounting surface such that a free length of the wiper blade is different at a plurality of points along a width of the wiper blade.Type: ApplicationFiled: May 3, 2019Publication date: August 22, 2019Applicant: HP Indigo B.V.Inventors: Eric G. Nelson, Lavi Cohen
-
Patent number: 10310417Abstract: In example implementations, an apparatus includes a planar surface, a curved mounting surface and a wiper blade. The curved mounting surface may be coupled adjacent to the planar surface. The wiper blade may be clamped to the planar surface. A bottom of the wiper blade can rest on the curved mounting surface such that a free length of the wiper blade is different at a plurality of points along a width of the wiper blade.Type: GrantFiled: January 29, 2016Date of Patent: June 4, 2019Assignee: HP Indigo B.V.Inventors: Eric G. Nelson, Lavi Cohen
-
Publication number: 20190004451Abstract: In example implementations, an apparatus includes a planar surface, a curved mounting surface and a wiper blade. The curved mounting surface may be coupled adjacent to the planar surface. The wiper blade may be clamped to the planar surface. A bottom of the wiper blade can rest on the curved mounting surface such that a free length of the wiper blade is different at a plurality of points along a width of the wiper blade.Type: ApplicationFiled: January 29, 2016Publication date: January 3, 2019Applicant: HP Indigo B.V.Inventors: Eric G. Nelson, Lavi Cohen