Townsend and Townsend and Crew LLP
System for aligning document images when scanned in duplex mode
 A system and method for handling duplex documents by exploiting bleed-through of the image on the back side of a document. The images of the back sides and front sides of documents are associated with one another to assure correct output in copying, faxing, scanning, etc. This increases reliability, eases recovery from errors including paper jams. Improved document handling capabilities also include avoiding twice duplicated and skipped pages and correcting page orientation errors. 
Ricoh Company Limited Ricoh Corporation
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Jonathan J. John F. Mark
Hull Cullen Peairs