Browse Prior Art Database

AUTOMATIC DOCUMENT HANDLING SYSTEM FOR TWO-UP SIGNATURE PRINTER

IP.com Disclosure Number: IPCOM000025723D
Original Publication Date: 1987-Aug-31
Included in the Prior Art Database: 2004-Apr-04
Document File: 4 page(s) / 166K

Publishing Venue

Xerox Disclosure Journal

Abstract

An automatic document handling system 1 providing automatic, selected (random access) separation, orientation, ordering and positioning of documents for signature printing on a xerographic copier with conventional optical input, i. e., light imaging of physical document sheets on a conventional copier platen.

This text was extracted from a PDF file.
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This is the abbreviated version, containing approximately 54% of the total text.

Page 1 of 4

XEROX DISCLOSURE JOURNAL

AUTOMATIC DOCUMENT HANDLING Proposed Classification SYSTEM FOR TWO-UP SIGNATURE
PRINTER
Int. C1. B65h 3/44 Richard E. Smith

U.S. C1.271/9

....__.________

FIG. 1

Volume 12 Number 4 July/August 1987 175

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AUTOMATIC DOCUMENT HANDLING SYSTEM FOR TWO-UP SIGNATURE PRINTER (Cont'd)

176

FIG. 2

  XEROX DISCLOSURE JOURNAL Volume 12 Number 4 July/August 1987

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

Page 3 of 4

AUTOMATIC DOCUMENT HANDLING SYSTEM FOR TWO-UP SIGNATURE PRINTER (Cont'd)

An automatic document handling system 1 providing automatic, selected (random access) separation, orientation, ordering and positioning of documents for signature printing on a xerographic copier with conventional optical input, i. e., light imaging of physical document sheets on a conventional copier platen.

Feeding two documents at a time (simultaneously) to a copier platen to make one copy sheet from two documents is known as "two-up" copying. (See e. g., IBM U. S. Patent No. 4,052,054.) "Signature" printing produces a collated set of two-up copy sheets which can be center-folded and bound to make a book.

In order to do such two-up signature printing in a xerogra hic printer with a

in a proper sequence and orientation to obtain output copies in a proper (and corresponding but different) sequence and orientation that will result in the production of finished books with the correct page order and image orientation. Automatic feeding means may be used to automatically present documents 2-up to the ex osure station (copier platen) in the proper sequence. However, conventional ocument feeding devices re uire the operator to manually divide and reorder the document set into two ocument stacks in the proper document sheet sequence and page/image orientation before inserting them into the feeder. What is disclosed here is a system 1 that automatically performs the following functions selected under the control of the copier microprocessor programmed for signature output on the particular copier used. It:

light lens system, it is necessary to present documents to t

rl e exposure platen

x

1)Divides and reorders the document set into the proper page sequence.

2)Rotates the appropriate pages into the correct page/image orientation, and

3)Presents two documents at a time in side-by-side output position to either a dual document feeder's input stack, or directly to the copier platen.

The following is a functional description of each of the primary elements that enable the system 1 to automatically separate, orient and position doc...