Distance Correction - GRAPHTEC CS610 User Manual

4. LOADING A DOCUMENT

4.4 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 → 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.
4 – 10 CS610/CS510/IS210