Patents by Inventor Gerald Scott Leclerc

Gerald Scott Leclerc 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).

  • TC runtime control using underdeveloped solid, and edge enhancement
    Patent number: 6505011
    Abstract: An electrophotographic printing machine having a latent image is recorded on a photoconductive member with the latent image being developed with marking particles, includes: imager for recording a test patch consisting of a solid patch; developer for developing the test patch with marking particles wherein the developed patch has a solid portion and an edge portion; sensor for measuring a density of the solid portion of the test patch; sensor for measuring a density of the edge portion of the test patch; a system for generating a first output signal corresponding to the density of the solid portion of the test patch; and a system for generating a second output signal corresponding to the density of the edge portion of the test patch.
    Type: Grant
    Filed: April 26, 2001
    Date of Patent: January 7, 2003
    Assignee: Xerox Corporation
    Inventors: Gerald Scott Leclerc, Peter J. Featherly
  • TC runtime control using underdeveloped solid, and edge enhancement
    Publication number: 20020168194
    Abstract: An electrophotographic printing machine having a latent image is recorded on a photoconductive member with the latent image being developed with marking particles, includes: means for recording a test patch consisting of a solid patch; means for developing the test patch with marking particles wherein the developed patch has a solid portion and an edge portion; means for measuring a density of the solid portion of the test patch; means for measuring a density of the edge portion of the test patch; means for generating a first output signal corresponding to the density of the solid portion of the test patch; and means for generating a second output signal corresponding to the density of the edge portion of the test patch.
    Type: Application
    Filed: April 26, 2001
    Publication date: November 14, 2002
    Applicant: Xerox Corporation
    Inventors: Gerald Scott Leclerc, Peter J. Featherly
  • Dynamic duty cycle for increased latitude
    Patent number: 6445889
    Abstract: In an electrostatographic development system wherein toner is conveyed from a donor member over a development gap to a charge receptor by a development field in the development gap, a method including the step of: monitoring at least a first parameter of the system to detect an arcing condition within the development gap; and if an arcing condition is detected, tuning a duty cycle to avoid the arcing condition.
    Type: Grant
    Filed: April 26, 2001
    Date of Patent: September 3, 2002
    Assignee: Xerox Corporation
    Inventors: Gerald Scott Leclerc, Peter J. Featherly, Timothy A. Cole, Michael G. Swales
  • Edge enhancement scavenging device
    Patent number: 6400921
    Abstract: An apparatus for developing a latent electrostatic image on a charge retentive surface moving in a process direction with toner, the apparatus comprising: a supply of toner; a donor structure spaced from the charge retentive surface for conveying toner from the supply of toner to an area adjacent the charge retentive surface, a device for applying an alternating current directly to the donor structure to create an alternating electrostatic field between the donor structure and said charge retentive surface to produce a toner cloud adjacent the charge retentive surface for developing the latent electrostatic image thereon; and an edge enhancement device, adjacent to the donor structure, for redistributing toner on the developed latent electrostatic image.
    Type: Grant
    Filed: April 26, 2001
    Date of Patent: June 4, 2002
    Assignee: Xerox Corporation
    Inventors: Gerald Scott Leclerc, Richard M. Maier