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Two Dimensional Diode Array Scanner for Reproduction Apparatus

IP.com Disclosure Number: IPCOM000079103D
Original Publication Date: 1973-May-01
Included in the Prior Art Database: 2005-Feb-26
Document File: 2 page(s) / 30K

Publishing Venue

IBM

Related People

Mix, AL: AUTHOR

Abstract

A two-dimensional diode array scanner is incorporated within a document reproduction apparatus and shares optical components utilized in the reproduction apparatus.

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Two Dimensional Diode Array Scanner for Reproduction Apparatus

A two-dimensional diode array scanner is incorporated within a document reproduction apparatus and shares optical components utilized in the reproduction apparatus.

A document to be reproduced or scanned is placed on document plane 1. An image of the document is selectively transmitted to either the rotating photoconductor drum 3 or to the two-dimensional diode array 5. When reproducing the document, illumination means including lamp 6, reflector 7, and mirror 8 move past document 1 at a velocity corresponding to the surface velocity of photoconductor drum 3. Light is reflected from the document to mirror 11, also moving at photoconductor velocity, and thence to mirrors 13 and 15 moving at half the photoconductive velocity, through stationary lens 17 and stationary mirror 19 to the moving photoconductor drum 3.

When scanning the documents, in order to provide a source of electrical noncoded information representing the document, mirror 11 is rotated to its dotted line position. Light is then reflected from the document to mirror 11 through lens 21 to the diode array 5. Mirror 11, lens 21, and diode array 5 move at the scanning velocity. Diode array 5 is mounted to follower 23 which moves over camming surface 25 during a scan, thereby causing the light reflected from the document to impinge on the diode array 5 as it moves in the direction of arrow 27 and thus optically compensate for the movement of t...