Recirculating Automatic Document Feeder
Original Publication Date: 1979-Nov-01
Included in the Prior Art Database: 2005-Feb-20
Recirculation of original documents usually involves feeding them forward to an exposure station and/or feeding them back to a document stack in an arcuate path. This feeding technique is used in order to provide short feed paths and, accordingly, faster feeding. Generally, the leading edge of an original document is fed back up and over the exposure station, and then deflected 180 degrees again before being placed on the top of the document stack to be re-copied. Hence, this feeding technique causes problems in feeding certain types of original documents, e.g., stiff paper and "paste-ups".