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COPY IMAGE SHIFTING WITH INCREMENTED DOCUMENT SHIFTING

IP.com Disclosure Number: IPCOM000025794D
Original Publication Date: 1988-Feb-29
Included in the Prior Art Database: 2004-Apr-04
Document File: 2 page(s) / 110K

Publishing Venue

Xerox Disclosure Journal

Abstract

In making copies of original document sheets in the platen of a copier it is sometimes desirable to be able to shift the position of the text image being copied on the copy sheet, i.e. to change the size of the copy margins. There are several known ways of providing this margin shift, some of which are programable by the operator to be performed automatically by the copier. Examples are disclosed in U.S. Patents 4,579,444; 4,162,844; 4,442.7.51: 3,473,035; 4,029,411; and 4,187,024 or 4,272,180. The first of these is noted especially for its description in col. 21 of incrementally changing the servomotor controlled stopping position of the platen transport to change the document stopping position on the platen, and thereby the imaging position of the document relative to the copy sheet. With an automatic document feeder (ADF) the document is being fed onto the platen from an off-platen input.

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XEROX DISCLOSURE JOURNAL

COPY IMAGE SHIFTING WITH INCREMENTED DOCUMENT U.S. C1.355/14SH SHIFTING Int. C1. G03g 15/00 Tom Acquaviva

Proposed Classification

In making copies of original document sheets in the platen of a copier it is sometimes desirable to be able to shift the position of the text image being copied on the copy sheet, i.e. to change the size of the copy margins. There are several known ways of providing this margin shift, some of which are programable by the operator to be performed automatically by the copier. Examples are disclosed in U.S. Patents 4,579,444; 4,162,844; 4,442.7.51: 3,473,035; 4,029,411; and 4,187,024 or 4,272,180. The first of these is noted especially for its description in col. 21 of incrementally changing the servomotor controlled stopping position of the platen transport to change the document stopping position on the platen, and thereby the imaging position of the document relative to the copy sheet. With an automatic document feeder (ADF) the document is being fed onto the platen from an off- platen input.

Image margin shifting can also be done manually by shifting the position of the document by hand into various positions on the platen and making proof copies at each position until the desired margin is achieved. However, this is difficult. The document may move during the opening and closing of the platen cover mechanism, and maintaining edge registration alignment (non- skewing) is difficult.

In the system here, margin shifting can be provided accurately and controllably in either the manual or semi-automatic document handling mode of a copier, not only in an ADF operation. The document is manually placed on the platen at the normal registration position, i.e. aligned with the manual registration edge. Then the operator closes the document handler (platen cover) and programs the copier with a special program to incrementally servo- index the platen transport...