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SCHEDULED STOP PRINT FOR RACETRACK DUPLEX PAPER PATH ARCHITECTURES

IP.com Disclosure Number: IPCOM000026205D
Original Publication Date: 1990-Oct-31
Included in the Prior Art Database: 2004-Apr-05
Document File: 2 page(s) / 82K

Publishing Venue

Xerox Disclosure Journal

Abstract

In a reprographic system having an endless or racetrack duplex paper path, special care must be exercised in cycling down the paper path upon receipt of a stop print request. In general, endless or racetrack type duplex paper paths keep the side-one copy sheet moving after fixing of the side-one image, versus the common method of storing the sheet temporarily in a duplex tray. For example, subsequent to fixing of the side-one image, the sheet is inverted, to a duplex orientation, and the side-two image is transferred and fixed to the copy sheet. More specifically, the sheet is moved through an endless paper path loop while it is being inverted, thereby eliminating the need for a duplex storage tray. However, in the case of a stop print request, the system is unable to cycle the side-one sheets currently awaiting side-two images into a temporary storage position, such as a duplex tray.

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XEROX DISCLOSURE JOURNAL

SCHEDULED STOP PRINT FOR RACETRACK DUPLEX PAPER U.S. C1.355/319 PATH ARCHITECTURES
Michael E. Farrell
John C. Austin

Proposed Classification

Int. C1. G03g 21/00

STOP PRINT

?lo

I 14

XEROX DISCLOSURE JOURNAL Vol. 15 No. 5 SeptembedOctober 1990 357

[This page contains 1 picture or other non-text object]

Page 2 of 2

SCHEDULED STOP PRINT FOR RACETRACK DUPLEX PAPER PATH ARCHITECTURE S(Cont'd)

In a reprographic system having an endless or racetrack duplex paper path, special care must be exercised in cycling down the paper path upon receipt of a stop print request. In general, endless or racetrack type duplex paper paths keep the side-one copy sheet moving after fixing of the side-one image, versus the common method of storing the sheet temporarily in a duplex tray. For example, subsequent to fixing of the side-one image, the sheet is inverted, to a duplex orientation, and the side-two image is transferred and fixed to the copy sheet. More specifically, the sheet is moved through an endless paper path loop while it is being inverted, thereby eliminating the need for a duplex storage tray. However, in the case of a stop print request, the system is unable to cycle the side-one sheets currently awaiting side-two images into a temporary storage position, such as a duplex tray.

Accordingly, the simple process illustrated in the figure is used to cycle the duplex paper path down after receipt of a stop print request, 10. Initially, the system stops t...