4. System Maintenance
9.
Put the electronic pen at the upper right of the screen, and block the sensor so that light
does not reach it.
10.
Check that the shadow from the blocked sensor appears at the following area of the
Sensor Level dialog for the left position sensor.
11.
Check whether the shadow from the blocked sensor is in the normal position (the right-
hand side of the yellow line on the screen). When it is not in the normal position, adjust
until the yellow line comes to the normal position (within the left side of the shadow) by
increasing/decreasing the value of [lfirst] in the Camera Scope dialog.
Normal position
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