Patents by Inventor Charles Jarratt Simpson

Charles Jarratt Simpson 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: 7715734
    Abstract: A method for detecting a media change includes the steps of comparing a previous media condition to a current media condition, detecting a media change when the previous media condition is in one state and the current media condition is not that one state and, prompting a user to make appropriate menu selections when the media change is detected.
    Type: Grant
    Filed: August 15, 2007
    Date of Patent: May 11, 2010
    Assignee: Lexmark International, Inc.
    Inventors: Mark Joseph Edwards, Charles Jarratt Simpson, Robert Edward Stoss, Sogra Nishath
  • Publication number: 20090045565
    Abstract: A method of detecting a media change includes the steps of comparing a previous media condition to a current media condition, detecting a media change when the previous media condition is in one state and the current media condition is not said one state and, prompting a user to make appropriate menu selections when the media change is detected.
    Type: Application
    Filed: August 15, 2007
    Publication date: February 19, 2009
    Inventors: Mark Joseph Edwards, Charles Jarratt Simpson, Robert Edward Stoss, Sogra Nishath
  • Patent number: 7205561
    Abstract: An imaging apparatus includes a media support surface. A light source and a light detector are positioned in relation to a reflective surface such that when a sheet of print media covers the reflective surface, a reflected specular light component of a light beam is received by the light detector, and when the reflective surface is not covered, the reflective surface directs the reflected specular light component of the light beam away from the detector. The signal strength of the output from the light detector when receiving a diffuse light component reflected from the reflective surface is less than the signal strength of the output from the light detector when receiving the reflected specular light component that is reflected from a low reflectance print media.
    Type: Grant
    Filed: March 29, 2004
    Date of Patent: April 17, 2007
    Assignee: Lexmark International, Inc.
    Inventors: Mahesan Chelvayohan, Charles Jarratt Simpson, Herman Anthony Smith
  • Patent number: 6616266
    Abstract: A method for increasing the waste ink storage capacity in an ink jet printer includes the steps of providing a printer frame including a first frame portion and a second frame portion; providing a platen extending between the first frame portion and the second frame portion; providing a maintenance station coupled to the first frame portion; providing a printhead carrier for carrying a first printhead and a second printhead, and adapted for reciprocating movement along a carrier path, the carrier path extending over the first frame portion and the platen; defining a first ink spit area located at the maintenance station; defining a second ink spit area located at the platen; and selectively controlling an operation of the first printhead during spitting operations to eject a first ink in the first ink spit area and selectively controlling an operation of the second printhead during spitting operations to eject a second ink in the second ink spit area.
    Type: Grant
    Filed: July 30, 2001
    Date of Patent: September 9, 2003
    Assignee: Lexmark International, Inc.
    Inventors: Mark Aaron Neal, Charles Jarratt Simpson, Gregory Paul Washnock
  • Publication number: 20030020782
    Abstract: A method for increasing the waste ink storage capacity in an ink jet printer includes the steps of providing a printer frame including a first frame portion and a second frame portion; providing a platen extending between the first frame portion and the second frame portion; providing a maintenance station coupled to the first frame portion; providing a printhead carrier for carrying a first printhead and a second printhead, and adapted for reciprocating movement along a carrier path, the carrier path extending over the first frame portion and the platen; defining a first ink spit area located at the maintenance station; defining a second ink spit area located at the platen; and selectively controlling an operation of the first printhead during spitting operations to eject a first ink in the first ink spit area and selectively controlling an operation of the second printhead during spitting operations to eject a second ink in the second ink spit area.
    Type: Application
    Filed: July 30, 2001
    Publication date: January 30, 2003
    Inventors: Mark Aaron Neal, Charles Jarratt Simpson, Gregory Paul Washnock
  • Patent number: 5732054
    Abstract: A combined sensor for measuring tilt and tracking position of a lens holder with respect to an optical recording actuator base is disclosed. A light source and two photosensitive bi-cell detectors are secured to the actuator base so that a beam from the light source strikes the detectors, and an optical slot or flag is secured to the lens holder between the light source and the detectors, for creating an image on the bi-cell detectors. Output from the bi-cell detectors is converted into information on tilt and position of the lens holder relative to the actuator base.
    Type: Grant
    Filed: November 12, 1996
    Date of Patent: March 24, 1998
    Assignee: Eastman Kodak Company
    Inventors: Philip Frank Marino, Charles Jarratt Simpson