Fujitsu ScanSnap N1800 Operator's Manual page 431

5. Rotate the left bushing.
6. Remove the shaft.
Slightly lift the left side of the shaft (by approximately 5 mm), slide the shaft to the
left, and lift it up and away.
The pick roller bushing may be hard to rotate. Do not try to turn it with your
fingernail. Use a paper clip to turn the roller bushing if you can not rotate it
with your fingertip.
431
Bushing
Shaft
Pick roller
Pick roller
Shaft