unotec KADOK II Manual page 17

Exposure Compensation (EV -2 - 2)
Menu & Power on/off
Capture mode
Mirror image/rotation
If you need mirror image or rotation image when picture be scanning,
you can press Rotation key to adjust it, then capture picture.
Press key (mirror image), the image place be altered (from left to
right).
Continue Press key (rotation), the image place be altered (from up
to down).
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