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DOCUMENT REDUCTION ACCESSORY

IP.com Disclosure Number: IPCOM000023941D
Original Publication Date: 1979-Apr-30
Included in the Prior Art Database: 2004-Apr-01
Document File: 2 page(s) / 357K

Publishing Venue

Xerox Disclosure Journal

Abstract

A copier is provided with a removable accessory for making reduction copies of documents and particularly, large documents such as computer forms. This removable accessory is placed on the normal viewing platen of a copier when it is desired to make reduction copies, and the original document is slit scanned approximately 3" 4" above the copier platen.

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XEROX DISCLOSURE JOURNAL

DOCUMENT REDUCTION ACCESSORY ProposedDonald 3. Aldinger Classification

U.S. Cl. 355/18

mt. CL G03b 27/00

A copier is provided with a removable accessory for making reduction copies of documents and particularly, large documents such as computer forms. This removable accessory is placed on the normal viewing platen of a copier when it is desired to make reduction copies, and the original document is slit scanned approximately 3" 4" above the copier platen.

In the figure, the xerographic processor includes the electrostatographic drum 10, development chamber 11, drum cleaning assembly 12, copy sheet supply 14, copy sheet transport 15, image fixing station 13 and copy output tray 16. In conventional document copying, the reduction accessory 20 is removed from the platen 21 and a document is placed on the platen for copying. During copying, the document is illuminated by lamp 21. A mirror 23 scans the entire width of the platen while mirror 24 moves at half the speed of 23 and reflects the image of the document into half lens 25. The image of the document is ultimately reflected off mirror 26 and onto drum 10. The copier may be equipped with a semi~automatic document feeder 30 shown pivoted to an inoperative position in the figure.

In the reduction mode, the full rate scanning mirror 23, half rate mirror 24 and half lens 25 are locked in position as shown in the hatched areas for slit scanning of a

Volume 4 Number 2 March/April 1979 267

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