Patents by Inventor R. Megaw

R. Megaw 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).

  • Printhead error compensation
    Publication number: 20050237351
    Abstract: A method for calibrating one or more printheads includes printing a reference image using a first portion of image forming points of a first printhead, printing a diagnostic image using a second portion of image forming points of either the first printhead or a second printhead, detecting an optical density of the combined reference image and the diagnostic image and determining a compensation value based upon the optical density.
    Type: Application
    Filed: April 21, 2004
    Publication date: October 27, 2005
    Inventors: Tod Heiles, R. Megaw, Hsue-Yang Liu