Patents Represented by Attorney, Agent or Law Firm Michael A. Butler
  • Method of determining a resistive current
    Patent number: 6777959
    Abstract: A xerographic charging device corona current is determined by forming a first signal across a sense resistor in series with the charging device power supply, forming a second signal using a resistive voltage divider network across the power supply, and forming a third signal using a resistor-capacitor charging circuit across the power supply, and then processing the first, second and third signals to form an output signal that is based on the corona current.
    Type: Grant
    Filed: January 30, 2003
    Date of Patent: August 17, 2004
    Assignee: Xerox Corporation
    Inventor: Jerry F. Adams