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FINISHER EJECTION ALGORITHM

IP.com Disclosure Number: IPCOM000026041D
Original Publication Date: 1989-Dec-31
Included in the Prior Art Database: 2004-Apr-05
Document File: 2 page(s) / 72K

Publishing Venue

Xerox Disclosure Journal

Abstract

An electrophotographic printing machine handles a wide range of copy pa er staple sets of copy sheets or to advance unstapled and unbound stacks of copy sheets to the output tray. In order to obtain reliable ejection of unstapled and unbound stacks of copy sheets from the compiler tray, it is necessary to use an algorithm that controls the point of ejection. The compiler tray is capable of handling only 100, 20 lb. sheets. Some jobs create a situation where more than 100 sheets may be directed to the finisher. In addition, the reliability of "small quantity" sheet ejection is not as good as is ejection for sets having 10 to 50 sheets. Furthermore, some operators frequently use thicker than normal copy sheets. The algorithm developed to handle these situations requires that at any time the number of sheets to be sent to the finisher is determined, at the start of advancement to the compiler tray, which may happen several in uncollated jobs, the sheets to be advanced to the compiler to be ejected are based on the following:

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CEROX DISCLOSURE JOURNAL

FINISHER EJECTION ALGORITHM Proposed Classification John W. Daughton U.S. C1.355/200 Khalid M. Rabb
Mehdi Kohanbani
James J. Petery
E. Joseph Gunzelman Karl M. Kau

Int. C1. G03g 15/00

An electrophotographic printing machine handles a wide range of copy pa er

staple sets of copy sheets or to advance unstapled and unbound stacks of copy sheets to the output tray. In order to obtain reliable ejection of unstapled and unbound stacks of copy sheets from the compiler tray, it is necessary to use an algorithm that controls the point of ejection. The compiler tray is capable of handling only 100, 20 lb. sheets. Some jobs create a situation where more than 100 sheets may be directed to the finisher. In addition, the reliability of "small quantity" sheet ejection is not as good as is ejection for sets having 10 to 50 sheets. Furthermore, some operators frequently use thicker than normal copy sheets. The algorithm developed to handle these situations requires that at any time the number of sheets to be sent to the finisher is determined, at the start of advancement to the compiler tray, which may happen several in uncollated jobs, the sheets to be advanced to the compiler to be ejected are based on the following:

If the number of sheets remaining to be advanced to the finisher before the end of the set or stack is equal to or less than 70, place the number in the compiler tray and eject at the end of the set or stack and offset the side output tray....