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RECIRCULATING DOCUMENT HANDLER CONFIGURATION

IP.com Disclosure Number: IPCOM000024210D
Original Publication Date: 1979-Dec-31
Included in the Prior Art Database: 2004-Apr-02
Document File: 2 page(s) / 111K

Publishing Venue

Xerox Disclosure Journal

Abstract

Disclosed is a recirculating document handling unit 1 for automatically placing documents to be copied on the platen 2 of a conventional xerographic or other copier. It includes a document inverter 3 for inverting duplex documents so that their opposite sides may be copied. The documents to be copied are fed individually from the bottom af a stack 4 by a bottom feeder 5 closely adjacent the platen 2. Each document is fed onto the platen by an input roller pair 6a and 6b, which may be directly driven by engagement of the roller 6a by a large roller 7 driven in the direction shown. The registration of the document may be accomplished on the platen by various known systems, such as the illustrated registration belt 8 and raised registration edge 9. Reversal of the registration belt 8 after copying drives the document back toward the nip between the roller pair 6a and the roller 7, which transports the document into a diverter gate 10.

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(EROX DISCLOSURE JOURNAL

RECIRCULATING DOCUMENT HANDLER Proposed Classification CONFIGURATION U.S. C1. 355/8
John H. Looney Int. C1. G03g 15/28

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Disclosed is a recirculating document handling unit 1 for automatically placing documents to be copied on the platen 2 of a conventional xerographic or other copier. It includes a document inverter 3 for inverting duplex documents so that their opposite sides may be copied. The documents to be copied are fed individually from the bottom af a stack 4 by a bottom feeder 5 closely adjacent the platen 2. Each document is fed onto the platen by an input roller pair 6a and 6b, which may be directly driven by engagement of the roller 6a by a large roller 7 driven in the direction shown. The registration of the document may be accomplished on the platen by various known systems, such as the illustrated registration belt 8 and raised registration edge 9. Reversal of the registration belt 8 after copying drives the document back toward the nip between the roller pair 6a and the roller 7, which transports the document into a diverter gate 10.

If the lip of the gate 10 is moved up as shown by the movement arrow thereon, it will deflect the document directly into the nip of the return roller pair 11, which will return the document directly to the top of the stack 4 so that the document may be recirculated in maintained collated order. Thus, in this mode of operation, which may be utilized for simplex documents, the document inverter 3 is not utilized. For duplex documents the inverting gate 10 is held down so as to deflect the documents being returned from the platen around the outside of the roller 7 and into the nip between the roller 7 and a roller 12b, which may be driven by its engagement therewith. The document now inverted is driven into the pocket of the document inverter 3 until it strikes the reversing pad 13 at the end thereof, which...