Browse Prior Art Database

PAPER WIDTH SENSING PROPOSAL

IP.com Disclosure Number: IPCOM000027861D
Original Publication Date: 2001-Apr-30
Included in the Prior Art Database: 2004-Apr-09
Document File: 2 page(s) / 40K

Publishing Venue

Xerox Disclosure Journal

Abstract

Disclosed is use of an accurate, non-contacting sensor to detect the position of paper tray side guides in electrophotographic printing machines. The sensor is a laser or sonar device. A laser sensor would, for instance, be placed below the paper tray and reflect off suitable features in the side guides. The system provides an essentially analog output of the position, unlike discrete sensor mays. Other advantages are long term reliability, as well as, elimination of any re-zeroing requirement after a machine power-off condition.

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XEROX DISCLOSURE JOURNAL

PAPER WIDTH SENSING PROPOSAL

Ned Nenad Ivanovich John J. Wojtkowicz

Proposed Classification
U. S. C1.3991389 Int. C1. GO3g 15/00

Disclosed is use of an accurate, non-contacting sensor to detect the position of paper tray side guides in electrophotographic printing machines. The sensor is a laser or sonar device. A laser sensor would, for instance, be placed below the paper tray and reflect off suitable features in the side guides. The system provides an essentially analog output of the position, unlike discrete sensor mays. Other advantages are long term reliability, as well as, elimination of any re-zeroing requirement after a machine power-off condition.

DP5932

Xerox Disclosure Journal - Vol. 25, No. 2 MarchlApril2001 97

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98 Xerox Disclosure Journal - Vol. 25, No. 2 March/April2001

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