Fujitsu ScanSnap N1800 Operator's Manual page 432

7. Remove the pick roller from the shaft.
Lift up the lock tab of the pick roller and pull out the shaft.
Take care if lifting the pick roller lock tab with your fingernail as it may get
chipped or broken. If worried, try lifting the retaining clip using a paper clip as
shown in the following diagram.
8. Attach the new pick roller onto the shaft.
Insert the shaft into the new pick roller, aligning the protrusion on the shaft with the
matching notch in the pick roller.
Make sure that the pick roller shaft is fully inserted. If it is not correctly
attached, document jams and other feeding errors may occur.
Retaining clip
Shaft
Pick roller
Protrusion
Shaft
432
7.5 Replacing Parts
Pick roller