Contex SD One MF 44 User Manual page 49

Maintenance
Calibration
2
Launch the scanner calibration wizard
[settings > scanner > calibrate]
Calibration
3
Select the Calibration type
Select either Mechanical Calibration or Full Calibration.
 Mechanical Calibration will only align horizontal capture for
correct image stitching.
 Full Calibration will perform Mechanical Calibration
(alignment) plus B&W calibration and Color calibration.
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