Scanner Calibration And Focus Adjustment; Why Is White Point Calibration Necessary; Performing A White Point Calibration; When Is Geometric Calibration Necessary - Scan View SCANMATE F10 User Manual

SCANNER CALIBRATION AND FOCUS ADJUSTMENT

Why is white point calibration necessary?

The output of the scanner's light source changes slightly over time as the light
source ages. If compensation is not made for this physical characteristic, the
color balance of your scans will begin to drift.
The ScanMate F10 automatically performs white point calibration before
each scan. It does this by scanning a neutral white reference area (for reflection
scanning) or clear glass area (for transmission scanning) and electronically
balancing the signals from the red, green and blue color filters. Even though
this is done before each scan, it is still advisable to carry out a manual white
point calibration each day before starting work. This adjusts the calibration
to the current intensity of the light source and makes the pre-scan white
point calibrations go faster.

Performing a white point calibration

1 • Remove all images and other objects from the mounting plate.
2 • In ColorQuartet, choose "Calibrate White" from the "Calibration" menu.
White point calibration will automatically be carried out
for both transmission and reflection, and a message will
appear to tell you whether it was successfully completed.
3 • Click on "OK" to confirm.

When is geometric calibration necessary?

A special automatic calibration routine is used for checking the geometrics
of the mirror system in the ScanMate F10. Geometric calibration should be
carried out at the time of installation and should also be done any time you
change the physical placement of the scanner.
A special XY Calibration Target for this purpose (PN 960-13-002-60) is
supplied with the scanner. IMPORTANT: The target must be kept in good
ScanMate F10 • Operator's Manual
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