Patents by Inventor David Luis Pereira

David Luis Pereira 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).

  • Systems and methods for print head calibration
    Patent number: 8967757
    Abstract: Systems and methods for print head calibration. In an exemplary embodiment, the method may include scanning an image on a print media to obtain an optical density profile. The method may also include selecting at least one window in the optical density profile. The method may also include generating an average profile for each window. The method may also include identifying variations in uniformity.
    Type: Grant
    Filed: October 16, 2008
    Date of Patent: March 3, 2015
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Behnam Bastani, David Luis Pereira, Jose Ramos
  • IMAGE FORMING APPARATUSES AND METHODS THEREOF
    Publication number: 20120297997
    Abstract: Image forming apparatuses and methods are disclosed. Image forming apparatuses and methods include a plate member including an upper plate surface to receive media on which to form images, an ink absorber member to receive ink in a form of ink build-up, and a blotter unit to periodically contact and press at least a portion of the ink build-up formed on the ink absorber member therein.
    Type: Application
    Filed: May 25, 2011
    Publication date: November 29, 2012
    Inventors: Michael Novick, David Luis Pereira, Geoffrey Schmid
  • Double-sided printing system
    Patent number: 8100489
    Abstract: A method for double-sided printing may include ejecting printing fluid from a fluid ejector to a platen configured to receive print media, the platen supporting a nonabsorbent substrate. In any sequence, a first print media side and a second print media side may be printed by ejecting printing fluid from the fluid ejector to the first print media side, and contacting the second print media side with the nonabsorbent substrate to transfer printing fluid from the nonabsorbent substrate to the second print media side. A method for double-side printing may further include increasing the contact between the second print media side with the nonabsorbent substrate to increase transfer of printing fluid.
    Type: Grant
    Filed: October 17, 2008
    Date of Patent: January 24, 2012
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Dale D. Timm, Jr., John A. Dangelawicz, David H. Donovan, Shilin Guo, Behnam Baslani, David Luis Pereira
  • SYSTEMS AND METHODS FOR PRINT HEAD CALIBRATION
    Publication number: 20090195581
    Abstract: Systems and methods for print head calibration. In an exemplary embodiment, the method may include scanning an image on a print media to obtain an optical density profile. The method may also include selecting at least one window in the optical density profile. The method may also include generating an average profile for each window. The method may also include identifying variations in uniformity.
    Type: Application
    Filed: October 16, 2008
    Publication date: August 6, 2009
    Inventors: Behnam Bastani, David Luis Pereira, Jose Ramos
  • DOUBLE-SIDED PRINTING SYSTEM
    Publication number: 20090153605
    Abstract: A method for double-sided printing may include ejecting printing fluid from a fluid ejector to a platen configured to receive print media, the platen supporting a nonabsorbent substrate. In any sequence, a first print media side and a second print media side may be printed by ejecting printing fluid from the fluid ejector to the first print media side, and contacting the second print media side with the nonabsorbent substrate to transfer printing fluid from the nonabsorbent substrate to the second print media side. A method for double-side printing may further include increasing the contact between the second print media side with the nonabsorbent substrate to increase transfer of printing fluid.
    Type: Application
    Filed: October 17, 2008
    Publication date: June 18, 2009
    Inventors: Dale D. Timm, JR., John A. Dangelawicz, David H. Donovan, Shilin Guo, Behnam Baslani, David Luis Pereira