Patents by Inventor Joaquin Alberto

Joaquin Alberto 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 end of life detection system
    Patent number: 6547365
    Abstract: A method and apparatus for printing a print job includes determining which nozzles of a printhead are currently failing, estimating a number of additional printhead nozzles that will fail while printing the print job, calculating a maximum number of failing nozzles that may not be exceeded in order to maintain a specified quality level for the print job, and determining if the number of currently failing printhead nozzles added to the estimated number of additional printhead nozzles that will fail exceeds the calculated maximum number of failing nozzles. The method and apparatus also includes providing a notification in the event that the number of currently failing printhead nozzles added to the estimated number of additional printhead nozzles that will fail exceeds the calculated maximum number of failing nozzles.
    Type: Grant
    Filed: October 31, 2001
    Date of Patent: April 15, 2003
    Assignee: Hewlett-Packard Company
    Inventors: Joaquin Alberto, Marcelo Ymbern, Lidia Calvo