Browse Prior Art Database

REGISTRATION EDGE OPERABILITY GUIDE

IP.com Disclosure Number: IPCOM000024478D
Original Publication Date: 1980-Oct-31
Included in the Prior Art Database: 2004-Apr-02
Document File: 2 page(s) / 47K

Publishing Venue

Xerox Disclosure Journal

Abstract

In xerographic copiers which provide a choice of reduction and/or enlargement ratios, there is a need to convey information to the operator concerning the maximum size of documents which can be copied at any given magnification setting, and where the document must be placed on the platen. This disclosure describes a device which will provide the required information.

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I(EROX DISCLOSURE JOURNAL

REGISTRATION EDGE OPERABILITY G UID E
Richard A. Spinelli

Proposed Classification
U.S. CI. 350/110 Int. Cl. G02b 27/02

In xerographic copiers which provide a choice of reduction and/or enlargement ratios, there is a need to convey information to the operator concerning the maximum size of documents which can be copied at any given magnification setting, and where the document must be placed on the platen. This disclosure describes a device which will provide the required information.

Along the length and width of the platen are provided cylindrical members having slots along their entire length. These slots are located at the top of the cylinders where they can be easily seen by the operator. Inside each cylinder are rotatable rods which are engraved with a single-turn helical line carrying an easily visible color. The inner rotatable rods are suitably linked to the optical system of the copier in such a way that the angular position of each causes the helical line to appear through the slot at the position on the platen corresponding to the dimensional extremes of the area which is imaged for that particular magnification setting .

Volume 5 Number 5 September/October 1980 515

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

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    XEROX DISCLOSURE JOURNAL Volume 5 Number 5 September/October 1980

516

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