US Patent 7384300 Method and apparatus for a connection sensing apparatus

An apparatus and method are provided for a plug connector sensing apparatus for determining whether a transmission line is present within a receptacle. A reprographic printing system including this apparatus is disclosed. The method of using this plug sensing apparatus comprises determining, with the plug connector sensor, whether the plug connector is present within the receptacle and determining, with a separate signal detector, whether a signal is being communicated through the transmission line.