Fujitsu ScanSnap S510M Operator's Manual page 246

9. Install the pick roller with its shaft to the ScanSnap.
Insert the right end of the shaft to the roller bushing (right), and set the shaft to the slot while
lowering it.
Pick roller shaft
10. Rotate the roller bushing (left) by rotating it in the direction of the arrow.
ATTENTION
224
Pick roller
Pick roller
Pick roller bushing
Make sure that the Pick roller is completely attached. Otherwise, document
jams or other feeding errors may occur.
Pick roller shaft