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Multiple sheets feeding detection apparatus, sorter, and method of detecting multiple sheets feeding

  • US 7,307,532 B2
  • Filed: 06/01/2005
  • Issued: 12/11/2007
  • Est. Priority Date: 06/14/2004
  • Status: Active Grant
First Claim
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1. A multiple sheets feeding detection apparatus comprising:

  • a passage detector that detects passage of a target object and outputs passage information, the target object being carried by carrier means and having an RFID tag attached thereto;

    a management code detector that receives management code information wirelessly sent from the RFID tag and outputs the management code information; and

    a controller that receives inputs of the passage information and the management code information, determines a carrier state of the target object in accordance with the passage information and the management code information, and outputs a multiple feed generation signal when multiple sheets feeding occurs.

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