Patent ID: 8328192
Filing Date: 2012-12-11
Classification: B65H

Abstract:
1. A sheet thickness detection device for detecting a thickness of a sheet being conveyed, comprising: a conveyance unit configured to convey a sheet along a conveyance path; an acquisition unit configured to acquire information about the sheet being conveyed; a driven member disposed in the conveyance path for contact with the sheet being conveyed and configured to be displaced to follow a thickness of the sheet being conveyed; a pressure changeover unit configured to change a pressure applied by said driven member to the sheet being conveyed; a displacement amount detection unit configured to detect an amount of displacement of said driven member; a thickness computation unit configured to compute the thickness of the sheet being conveyed based on a result of detection by said displacement amount detection unit; and a control unit configured, based on the sheet information acquired by said acquisition unit, to control said pressure changeover unit to change the pressure applied by said driven member to the sheet.