1)Remove any documents from the document support.

2)Open the automatic document feeder by pulling it toward you while raising the cover open lever.

3)Remove the pad unit.

Step 1: Push the pick arm in the automatic document feeder in the arrow direction.

Step 2: Pull out the pad unit by using such as a ballpoint pen at both ends (a and b) of the pad unit.

4)When mounting a new pad unit, push the pick arm downward with one hand while mounting the pad unit with the other hand.

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M3091DC Image Scanner Operation Guide