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SCANNING SYSTEM FOR IMAGING CHARACTERS COMBINED WITH GRAPHIC CURVES

IP.com Disclosure Number: IPCOM000022766D
Original Publication Date: 1976-Jan-31
Included in the Prior Art Database: 2004-Mar-26
Document File: 2 page(s) / 374K

Publishing Venue

Xerox Disclosure Journal

Abstract

A flying spot scanning system is orovided, which has a separate scanning system for imaging characters onto a recording medium and has a separate "x~y' galvanometer operated mirror scanning system for imaging a graphic curve onto the recording medium

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XEROX DISCLOSURE JOURNAL

SCANNING SYSTEM FOR IMAGING CHARACTERS COMBINED WITH GRAPHIC CURVES
Gary K. Starkweather

Proposed Classification
U.S. Cl. 331/94,5

Int. Cl. HOls 3/00

A flying spot scanning system is orovided, which has a
separate scanning system for imaging characters onto a
recording medium and has a separate "x~y' galvanometer
operated mirror scanning system for imaging a graphic
curve onto the recording medium

A collimated beam 18 is generated by a laser 20. A beam
splitter 22 is in the path of the beam 18 and allows a
oortion 24 of the beam to pass therethrough to an acousto-
optic modulator 26 and thereafter to a mirror 28, which
directs the beam 24 to a rotating polygon scanner 30, which
sweeps the beam as a spot across the moving ohotoreceptor
belt 10 one scan line at a time transverse (in ~x" direc-
tion~ to the direction of movement of the photoreceptor.
The beam 18, 24 stays in substantially the same horizontal
plane from the laser to the photoreceptor The oolygon
scanner 30 provides only an "x~ scan on the photoreceptor
while rotational movement of the photoreceptor 10 provides
a "y" scan permitting a new scan line to be imaged onto the
photoreceptor on each sweep of the beam 24 by the scanner 30.

Volume 1 Number 1 January 1976 97

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SCAIThTING SYSTEM FOP. IMAGING CHARACTERS COMBINED WITH GRAPHIC

CURVES (Contd~

The portion 36 of the beam 18, which is reflected from the
beam splitter 22, is passed th...