Banner, Birch, McKie & Beckett
Facsimile method and system for preventing the transmission of a document to the wrong destination
 This invention is directed to a method and system which employs a distinguishing document placed between each document set which distinguished the documents for one destination from the documents of another destination. In accordance with this invention, the number of documents within each set are counted by counting the documents fed until the distinguishing document is detected, this number is then compared with the number entered in advance for each destination. When a difference between these numbers occurs, it is then determined that double feeding has occurred and a warning is indicated. 
Tokyo Shibaura Denki Kabushiki Kaisha
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Yoshihiro Tsuneo Fumikazu Toshio
Hirata Murata Nishikawa Miyagawa