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IP.com Disclosure Number: IPCOM000025243D
Original Publication Date: 1984-Apr-30
Included in the Prior Art Database: 2004-Apr-04

Publishing Venue

Xerox Disclosure Journal


A paper feeding apparatus is disclosed that combines the feeding, separation and registration functions in a composite unit 10, as shown in a top view of the figure. A wave motion feeder 12 of the type disclosed in U.S. Patents 2,345,644 and 4,113,245 is used to separate and fan out sheets from a stack in shingled form. The rotation of feeder member 12 causes the top sheet in the stack to register against registration fingers 20, 21 and 22 to remove skew. A sensor 30 is placed in line with the registration fingers that will retract the fingers and initiate further feeding of the sheets by a drive roll set 40 and 41. This device has several advantages over previous feeders. For example, there are no elastomeric com-ponents to degrade fro.';" feeding friction and the device does not depend on roll to paper or device to paper friction but instead on device to paper normal force, feed member diameter and paper stiffness to feed and separate sheets.