Patents by Inventor Andrew John Graf

Andrew John Graf 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 WIPING PROTOCOL FOR INKJET PRINTER
    Publication number: 20090179962
    Abstract: A method of wiping a printhead with a nozzle face defining an array of nozzles for ejecting ink on to a media substrate fed past the printhead in a media feed direction, by providing a wiper member in the printer, moving the wiper member into the media feed path, and wiping all the nozzles in the nozzle face with a single traverse of the wiper member in a direction parallel to the media feed direction.
    Type: Application
    Filed: January 16, 2008
    Publication date: July 16, 2009
    Inventors: Vesa Karppinen, Andrew John Graf, Nicholas Kenneth Abraham, Kia Silverbrook