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PAPER VELOCITY MEASURING INSTRUMENT

IP.com Disclosure Number: IPCOM000025301D
Original Publication Date: 1984-Aug-31
Included in the Prior Art Database: 2004-Apr-04
Document File: 2 page(s) / 49K

Publishing Venue

Xerox Disclosure Journal

Abstract

Proposed is a low cost and easy to use method of measuring paper velocity in a copier where difficulties are encountered in accurately measuring sheet velocity. The illustrated device utilizes a nano scanner 1 to pick up ladder chart lines drawn on a moving sheet of paper. The frequency at which the lines pass the scanner is directly proportional to the velocity of the paper. The signal from the scanner is filtered, amplified, and directed to a frequency-to-voltage converter 2 having its output connected to a visicorder 3 for visual monitoring. Velocities UD to 24 inches/second have been measured using a ladder chart with .08 inch spacing.

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Page 1 of 2

XEROX DISCLOSURE JOURNAL

PAPER VELOCITY MEASURING INSTRUMENT
Lawrence R. Benedict

Proposed Classification
U.S. Cl. 73/499 Int. Cl. GOlp 3/00

V

7--

+5v ~

237 Volume 9 Number 4 July/August 1984

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

Page 2 of 2

PAPER VELOCITY MEASURING INSTRUMENT (Cont'd) .

Proposed is a low cost and easy to use method of measuring paper velocity in a copier where difficulties are encountered in accurately measuring sheet velocity.

The illustrated device utilizes a nano scanner 1 to pick up ladder chart lines drawn on a moving sheet of paper. The frequency at which the lines pass the scanner is directly proportional to the velocity of the paper. The signal from the scanner is filtered, amplified, and directed to a frequency-to-voltage converter 2 having its output connected to a visicorder 3 for visual monitoring. Velocities UD to 24 inches/second have been measured using a ladder chart with .08 inch spacing.

238 XEROX DISCLOSURE JOURNAL

Volume 9 Number 4 July/August 1984

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