Kyocera KM-3650W Operation Manual page 44

5.2.4.2.2 Shading
Reading Sensors on the scanner can be calibrated correctly with "Shading".
Press the R1 Key to highlight "Execute", and then press the Start Key to start.
The following message is displayed.
Set the Calibration Sheet to the scanner, and then press the Enter Key to start.
Be careful of the direction of Calibration Sheet.
A corner not right angled must be on left rear against the direction to insert.
Calibration Sheet
This corner mist be on left rear.
Direction to insert
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