Browse Prior Art Database

TWO-UP COPYING AND SORTING IMPROVEMENT

IP.com Disclosure Number: IPCOM000026988D
Original Publication Date: 1994-Oct-31
Included in the Prior Art Database: 2004-Apr-07
Document File: 2 page(s) / 117K

Publishing Venue

Xerox Disclosure Journal

Abstract

"Two-up" copying usually means placing two document sheets or book pages on the platen at the same time for copying both of them, usually with a small space in between the two document sheets. Disclosed is a postcollation copying system especially for utilizing a copier which has the capability to automatically feed two documents onto the platen at once and also the capability to do a "book mode" or "split scan" imaging of one document on the platen and then the other, copying each document onto a separate copy sheet.

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XEROX DISCLOSURE JOURNAL

TWO-UP COPYING AND SORTING IMPROVEMENT U.S. C1.355/323 Henry T. Bober

Proposed Classification

Int. C1. G03g 21/00

"Two-up" copying usually means placing two document sheets or book pages on the platen at the same time for copying both of them, usually with a small space in between the two document sheets. Disclosed is a postcollation copying system especially for utilizing a copier which has the capability to automatically feed two documents onto the platen at once and also the capability to do a "book mode" or "split scan" imaging of one document on the platen and then the other, copying each document onto a separate copy sheet.

This system can reduce sorter noise by reducing the number of actuations or movements of the bins of the sorter or the bin gates by approximately one-half. Two documents are registered on the platen by the automatic document feeder (or a book is laid open on the platen with both pages exposed). The documents are scanned in the order such that the copies of the first document page copied may be placed in the sorter bins first. The first copy of the first document page is placed in the first bin available. The second document page on the platen is then scanned and its first copy is placed in the same sorter bin, on top of the copy of the previous document. That is, two copies are placed in direct sequence into each bin before the bins are indexed, rather than one as in normal postcollation copying. If, for example, the sorter is of the type which stacks simplex copy sheets face up, and N copies are being made of a set of N originals fed by the document feeder in reverse order, document N would be copied on the platen and its first copy fed to the sorter bin followed immediately by the copy of document N minus 1, and this would be done before the next sorter bin is indexed, then two more sequential copies of documents N and an N minus 1 would be place...