Patents by Inventor Jose Luis Valero

Jose Luis Valero 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).

  • Patent number: 10226941
    Abstract: A method to calibrate a printer, in which printing of a plurality of uniform area fills using a variety of combinations of at least first and second types of correction is controlled, both the first and second type of correction being varied in the variety of combinations; and in which measurement of optical density uniformity of the plurality of uniform area fills is controlled.
    Type: Grant
    Filed: June 4, 2014
    Date of Patent: March 12, 2019
    Assignee: Hewlett-Packard Development Copmany, L.P.
    Inventors: Jose Luis Valero Navazo, Alejandro Manuel De Pena, Marcos Casaldaliga Albisu
  • Publication number: 20180147841
    Abstract: A temperature of one printing element is adjusted based upon a temperature of another of printing element.
    Type: Application
    Filed: July 29, 2015
    Publication date: May 31, 2018
    Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
    Inventors: Garrett E. Clark, Michael W. Cumbie, Mark H. MacKenzie, Jose Luis Valero
  • Patent number: 9844944
    Abstract: A printing system includes a print bar, a plurality of printheads installed on the print bar and an auxiliary printhead moveable parallel to the print bar. A number of first nozzles of the auxiliary printhead substitute for a number of second nozzles of the printheads during a nozzle servicing operation performed on the second nozzles.
    Type: Grant
    Filed: June 15, 2016
    Date of Patent: December 19, 2017
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Gianni Cessel, Jose Luis Valero Navazo, Jeff Allen Wagner
  • Publication number: 20170100942
    Abstract: A method to calibrate a printer, in which printing of a plurality of uniform area fills using a variety of combinations of at least first and second types of correction is controlled, both the first and second type of correction being varied in the variety of combinations; and in which measurement of optical density uniformity of the plurality of uniform area fills is controlled.
    Type: Application
    Filed: June 4, 2014
    Publication date: April 13, 2017
    Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
    Inventors: Jose Luis Valero Navazo, Alejandro Manuel De Pena, Marcos Casaldaliga Albisu
  • Publication number: 20160297204
    Abstract: A printing system includes a print bar, a plurality of printheads installed on the print bar and an auxiliary printhead moveable parallel to the print bar. A number of first nozzles of the auxiliary printhead substitute for a number of second nozzles of the printheads during a nozzle servicing operation performed on the second nozzles.
    Type: Application
    Filed: June 15, 2016
    Publication date: October 13, 2016
    Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
    Inventors: Gianni Cessel, Jose Luis Valero Navazo, Jeff Allen Wagner
  • Patent number: 9427970
    Abstract: According to one example, there is provided a printing system having a print bar on which are installable multiple printheads. The system comprises a nozzle servicing module moveable across the length of the print bar to selectively perform a nozzle servicing operation on a group of printhead nozzles.
    Type: Grant
    Filed: September 20, 2012
    Date of Patent: August 30, 2016
    Assignee: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
    Inventors: Gianni Cessel, Jose Luis Valero Navazo, Jeffrey Allen Wagner
  • Publication number: 20150251431
    Abstract: According to one example, there is provided a printing system having a print bar on which are installable multiple printheads. The system comprises a nozzle servicing module moveable across the length of the print bar to selectively perform a nozzle servicing operation on a group of printhead nozzles.
    Type: Application
    Filed: September 20, 2012
    Publication date: September 10, 2015
    Inventors: Gianni Cessel, Jose Luis Valero Navazo, Jeffrey Allen Wagner
  • Patent number: 7261388
    Abstract: In a method of printing a plurality of pages during a print job, a page-wide-array printing device having redundant dot-forming elements is used. Print masks distribute dot-forming-element activity between the redundant dot-forming elements in a manner taking into account known malfunctions of dot-forming elements to hide such malfunctions, or reduce a visible effect of such malfunctions in the pages printed. The method includes generating a plurality of print masks which are different, as they distribute the dot-forming-element activity in different ways, but are equivalent, since they are based on the same knowledge of dot-forming-element malfunctions; dividing the print job into page-sets of at least one page; and printing the different page-sets of the print job using different equivalent print masks, thereby distributing the dot-forming-element activity in different ways from page-set to page-set.
    Type: Grant
    Filed: February 28, 2005
    Date of Patent: August 28, 2007
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Ramon Vega, Jose Luis Valero, Xavier Bruch
  • Patent number: 7052102
    Abstract: Fixer is detected on a print media 22 by applying a predetermined pattern 200, FIG. 3, of fixer to the media, and over or under-printing it with a fill of coloured ink, and then optically detecting the predetermined pattern. For example, magenta ink may be applied over the fixer pattern on a glossy media, areas with both fixer and ink having a detectable increase in optical density compared to areas with ink alone. The pattern is scanned and the image information is used to check fixer nozzle functionality and fixer printhead alignment.
    Type: Grant
    Filed: July 30, 2003
    Date of Patent: May 30, 2006
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Jose Luis Valero, Oscar Martinez
  • Patent number: 7036897
    Abstract: An incremental printer comprising a plurality of printing elements arranged to print different portions of an image, the printer being arranged, prior to printing an image, to identify elements that are not required for printing the image and to implement an element servicing routine, the printer being arranged to exclude one or more of the identified elements from the servicing routine.
    Type: Grant
    Filed: October 31, 2003
    Date of Patent: May 2, 2006
    Assignee: Hewlett-Packard Company, L.P.
    Inventors: Gonzalo Gaston, Ramon Vega, Jose Luis Valero
  • Patent number: 6958482
    Abstract: To check that nozzles of printheads 11-15 applying fixer or an ink to a print media 22 are operating correctly, the fixer or ink is applied to selected locations on a fluorescent print media which is then subjected to ultra-violet radiation; the reflectivities at these locations are detected in the visible spectrum and the information is analyzed using appropriate image processing algorithms. In an ink-jet printer, for example, applied fixer may be irradiated with ultra-violet light by a source 30 and applied inks may be irradiated with visible light, with a common detector in the visible light range being employed.
    Type: Grant
    Filed: July 30, 2003
    Date of Patent: October 25, 2005
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Oscar Martinez, Jose Luis Valero
  • Patent number: 6896349
    Abstract: A printer apparatus comprising one or more printing elements arranged to print on print media located in a print position, the apparatus further comprising first and second media paths respectively adapted to feed media to and away from the print position, the apparatus being arranged to selectively divert a print media sheet from the second media path to the print position, the apparatus being arranged to implement a servicing routine comprising marking the diverted sheet with one or more of the printing elements.
    Type: Grant
    Filed: January 28, 2003
    Date of Patent: May 24, 2005
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Jose Luis Valero, Martin Urrutia, Corrina Hall
  • Publication number: 20040263556
    Abstract: A hardcopy device comprises a printhead which extends across a print media path, and movable service station components which are moved in a direction parallel to the longitudinal axis of the printhead and into a position between the printhead and the print media path, whereby to undertake a servicing operation on the printing member. The printheads are lifted away from the print media path to allow the movement of the service station components. The service station components may move along a track which is angled to one side of the hardcopy device. Different service station components may be provided at opposite sides of the hardcopy device.
    Type: Application
    Filed: April 8, 2004
    Publication date: December 30, 2004
    Applicant: Hewlett-Packard Development Company, L.P.
    Inventors: Martin Urrutia, Antonio Monclus, Jose Luis Valero
  • Patent number: 6802580
    Abstract: A printer apparatus comprising one or more printing elements arranged to print on print media in a print zone and a transport path arranged to transport printed sheets from the print zone to an output position, the apparatus further comprising a scanner arranged to scan a printed sheet, and diverting means arranged to selectively divert a printed sheet to the scanner, the scanner being located such that the apparatus may continue to print and transport sheets to the output position during the scanning process.
    Type: Grant
    Filed: January 28, 2003
    Date of Patent: October 12, 2004
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventor: Jose Luis Valero
  • Publication number: 20040125162
    Abstract: Fixer is detected on a print media 22 by applying a predetermined pattern 200, FIG. 3, of fixer to the media, and over or under-printing it with a fill of coloured ink, and then optically detecting the predetermined pattern. For example, magenta ink may be applied over the fixer pattern on a glossy media, areas with both fixer and ink having a detectable increase in optical density compared to areas with ink alone. The pattern is scanned and the image information is used to check fixer nozzle functionality and fixer printhead alignment.
    Type: Application
    Filed: July 30, 2003
    Publication date: July 1, 2004
    Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
    Inventors: Jose Luis Valero, Oscar Martinez
  • Publication number: 20040085381
    Abstract: To check that nozzles of printheads 11-15 applying fixer or an ink to a print media 22 are operating correctly, the fixer or ink is applied to selected locations on a fluorescent print media which is then subjected to ultra-violet radiation; the reflectivities at these locations are detected in the visible spectrum and the information is analysed using appropriate image processing algorithms. In an ink-jet printer, for example, applied fixer may be irradiated with ultra-violet light by a source 30 and applied inks may be irradiated with visible light, with a common detector in the visible light range being employed.
    Type: Application
    Filed: July 30, 2003
    Publication date: May 6, 2004
    Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
    Inventors: Oscar Martinez, Jose Luis Valero
  • Publication number: 20030218650
    Abstract: A printer apparatus comprising one or more printing elements arranged to print on print media in a print zone and a transport path arranged to transport printed sheets from the print zone to an output position, the apparatus further comprising a scanner arranged to scan a printed sheet, and diverting means arranged to selectively divert a printed sheet to the scanner, the scanner being located such that the apparatus may continue to print and transport sheets to the output position during the scanning process.
    Type: Application
    Filed: January 28, 2003
    Publication date: November 27, 2003
    Inventor: Jose Luis Valero
  • Patent number: 6648444
    Abstract: The present invention is directed to a method and apparatus for testing the operational status of printhead nozzles. High throughput drop detection devices are used to detected ink drops that are fired from the printhead nozzles, and the operational status is determined from the ink drop characteristics. The ink drop characteristics may include the presence or absence of an ink drop. Ink drop characteristics may also include the size and the location of an ink drop. The drop detection devices are capable of detecting a plurality of ink drops that are ejected substantially simultaneously.
    Type: Grant
    Filed: November 15, 2001
    Date of Patent: November 18, 2003
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Jose Luis Valero, Francesc Subirada
  • Publication number: 20030174186
    Abstract: A printer apparatus comprising one or more printing elements arranged to print on print media located in a print position, the apparatus further comprising first and second media paths respectively adapted to feed media to and away from the print position, the apparatus being arranged to selectively divert a print media sheet from the second media path to the print position, the apparatus being arranged to implement a servicing routine comprising marking the diverted sheet with one or more of the printing elements.
    Type: Application
    Filed: January 28, 2003
    Publication date: September 18, 2003
    Inventors: Jose Luis Valero, Martin Urrutia, Corrina Hall
  • Patent number: 6604807
    Abstract: A method for detecting clogged or otherwise anomalous nozzles in an ink jet printing device having a printer head containing at least one nozzle configured to eject droplets of ink, the method including sending an instruction to the printer head to eject droplets of ink, generating an output signal from a detecting means configured to detect a passage of droplets past the detecting means and applying an algorithm to the output signal which is configurable to check a correct functioning of the nozzles.
    Type: Grant
    Filed: February 18, 1999
    Date of Patent: August 12, 2003
    Assignee: Hewlett-Packard Company
    Inventors: Antoni Murcia, Xavier Bruch, Josë Luís Valero, Xavier Girones