Patents Represented by Law Firm Fitzpatrick, Cella, Harner & Scinto
  • Sheet thickness measuring system for measuring a thickness of various sheets fed into an image forming apparatus
    Patent number: 5760589
    Abstract: The present invention provides a sheet thickness measuring apparatus comprising electrostatic capacity measure means for measuring the electrostatic capacity of a sheet, resistance measure means for measuring a resistance value of the sheet, and calculation means for calculating a thickness of the sheet on the basis of the electrostatic capacity measured by the electrostatic capacity measure means and the resistance value measured by the resistance measure means.
    Type: Grant
    Filed: May 2, 1997
    Date of Patent: June 2, 1998
    Assignee: Canon Kabushiki Kaisha
    Inventor: Ichiro Katsuie