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3.4 Distance Correction
Corrections to the distance can be achieved using the driver software. The driver software included
with your scanner (“Scanning Master 21+”) enables you to perform distance correction from the
menu Tool
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Adjust Scanner in order to adjust the scanning accuracy. The adjustment function
must be set up when a scanned drawing needs to approximate the accuracy of the original drawing
closely. (This is for making fine adjustments to the accuracy of the scanned drawing to suit the quality
of the paper being used.) It is not normally necessary to perform this adjustment.
Adjustment method
Perform the distance correction process according to the type of document to be scanned.
Distance correction can be set in a range of
±
1%, which remains effective until the scanner’s
power is turned off. The practice of distance correction necessitates that you measure a
vertical line drawn on the document before following the procedure described below.
(1) Choose a document that has one or more vertical lines drawn on it and scan it at a
resolution of 600 dpi (Portrait (vertical) format).
(2) Measure the length of the vertical line of the document and classify it as x (distance on
the document).
(3) Measure the length of the same vertical line in the image data using the command to
measure the distance between two specified points of relative measurement, and classify
it as y (distance after the scan has taken place).
(4) Click on the Distance Correction button in the Adjust Scanner window to open the
Distance Correction window.
(5) Enter the value “x” (distance on the document) and the value “y” (distance after the scan
has taken place) in this window. The values entered here must be within the range of the
distance correction.
(6) Click the OK button to calculate the correction value. The distance will be corrected the
next time a document is scanned.
