Mustek S400W iScan Air User Manual page 17

Calibrate
4. Press the Calibrate button to begin the process.
* The Calibration Card will be pulled into the Scanner and the
LED indicator will blink pink light during calibrating.
* Mechanical sounds produced during the calibrating
process are normal.
5. Wait until the Calibration Card is ejected with a
'Calibration done.' message appeared.
(cont'd)
POWER
17