Browse Prior Art Database

Duplex Document Feeder

IP.com Disclosure Number: IPCOM000088181D
Original Publication Date: 1977-May-01
Included in the Prior Art Database: 2005-Mar-04
Document File: 2 page(s) / 26K

Publishing Venue

IBM

Related People

Bullock, MK: AUTHOR

Abstract

In a scanning device, automatic feeding of duplex documents, i.e., documents containing information on both sides, is accomplished by reinserting the turned over document into the feeder.

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Duplex Document Feeder

In a scanning device, automatic feeding of duplex documents, i.e., documents containing information on both sides, is accomplished by reinserting the turned over document into the feeder.

First, a document to be scanned is entered into feeder at input 1 and transported by belt 2 into correct position on document glass 3. If it is a simplex document, i.e., only to be scanned on one side, it is fed out at exit 4, vane 5 being in the up position. If it is a duplex document, i.e., to be scanned on both sides, vane 5 is moved into its down position, thus guiding the document via the upper path of belt 2 into a turnover device 6, as published, e.g., in the IBM Technical Disclosure Bulletin, Vol. 18, No. 1, June 1975, page 40. From there, the document enters the feeder again, now with its other side down on document glass 3. After scanning, the document leaves via exit 4, vane 5 being in its up position.

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