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METHOD FOR AUTOMATIC OPTIMAL FINISHING OF DOCUMENTS WITH RESPECT TO PAPER GRAIN DIRECTION

IP.com Disclosure Number: IPCOM000027804D
Original Publication Date: 1999-Oct-31
Included in the Prior Art Database: 2004-Apr-09
Document File: 2 page(s) / 61K

Publishing Venue

Xerox Disclosure Journal

Abstract

The process of manufacturing paper imparts a strong grain orientation to the finished product. Grain orientation is a key determinant to the quality of many finishing operations. Folding, scoring, and binding are finishing operations that should be performed parallel to the grain direction for good results. Documents finished in the wrong direction with respect to the grain often have poor end use qualities. For a folded document, a fold in the same direction as the grain yields a document that tends not to close tightly. A bound document with the bind across the grain direction yields a document with excessive edge waviness. The operator of an electrophotographic printer coupled to an in-line finishing system must know the paper grain direction in the feeders and the grain direction that is required to avoid these problems.

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XEROX DISCLOSURE JOURNAL

METHOD FOR AUTOMATIC OPTIMAL FINISHING OF DOCUMENTS WITH RESPECT TO PAPER GRAIN DIRECTION David C. Robinson
Michael E. Farrell

Proposed Classification
U. S. C1. 399/411 Int. C1. G03g 15/00

The process of manufacturing paper imparts a strong grain orientation to the finished product. Grain orientation is a key determinant to the quality of many finishing operations. Folding, scoring, and binding are finishing operations that should be performed parallel to the grain direction for good results. Documents finished in the wrong direction with respect to the grain often have poor end use qualities. For a folded document, a fold in the same direction as the grain yields a document that tends not to close tightly. A bound document with the bind across the grain direction yields a document with excessive edge waviness. The operator of an electrophotographic printer coupled to an in-line finishing system must know the paper grain direction in the feeders and the grain direction that is required to avoid these problems.

Disclosed is a method for determining whether the orientation of the paper grain is compatible with a selected finishing operation. The grain direction of the paper as fed is acquired from the feeder and information thereof is passed to the printer's control system. Next, a paper path transformation is applied and this information too, is given to the control system. Both sets of information are analyzed by the controller to determi...