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IP.com Disclosure Number: IPCOM000025400D
Original Publication Date: 1985-Apr-30
Included in the Prior Art Database: 2004-Apr-04

Publishing Venue

Xerox Disclosure Journal


This disclosure relates a transport for automatically copying of both open pages of a book. Moving platen xerographic copiers are known to those skilled in the art. The copier 1 has a photoreceptor 4, around which are located the standard xerographic processing stations (not shown). A retractable web 2 is stored on rotationally tensioned take-up roller 3, located in the top area of the copier 1, when non-book copying is required. When automatic book copying is desired, web 2 is pulled from roller 3 across the top of the copier 1. Web 2 has film-type sprocket holes located along one edge. These holes are mated with two sprocket drive gears 5 and 6 built into the top of the copier 1. Roller 3 will retract web 2 when not held back by the drive gears 5 and 6. Drive gears 5 and 6 can also be used to drive a moving platen (not shown) for non-book copying. After the web 2 is pulled across the copier 1 and mated with drive gears 5 and 6, a book is placed on web 2 with one edge at the edge of the exposure platen 7. When copying is started, drive gears 5 and 6 rotate at a steady rate allowing roller 3 to retract web 2 and move the book across exposure platen 7 in the direction of arrow 10. The book at exposure platen 7 is illuminated by lamp 8 and the image is focused by lens 9 onto photoreceptor 4 moving at the same rate as web 2 and in the direction of arrow 11. The image on the photoreceptor 4 is then developed and transferred to copy sheets (not shown). The process will automatically copy both open pages of the book. To copy the next two pages of the book, the book is