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Optical Mark Recognition (OMR) • 5
5-21SV40221 Rev. A
Once the Bottom Scanner is aligned, the Top Scanner (or paper
guide if a corresponding Top Scanner is not fitted) must be
positioned so that the sheet being scanned is kept at a controlled
distance from the scanner.
This is achieved by adjusting the Top Scanner as described on page
5-19, but to a setting 10mm (3/8”) different to the Bottom Scanner
setting. For example, if the Bottom Scanner is set to 70mm, set the
Top Scanner to 80mm.
When setting the Top Scanner, use the appropriate adjustment scale
depending on the location of the Bottom Scanner: The front scale
for a Front Bottom Scanner and the rear scale for a Rear Bottom
Scanner.
Top Scanner
Bottom
Scanner
10mm
(3/8”)
60 70 80
Bottom
Scanner
position
Top Scanner
position
SV40221 Rev A book.indb 5-21 9/14/2004 5:51:22 PM