Fujitsu FI-5530C2 Operator's Manual page 122

7. Attach the Pick roller shaft to the scanner.
Attach the Pick roller shaft to the scanner in reverse order of removing.
1) Set the Pick roller inserting an end of shaft into the shaft hole.
Shaft hole
Shaft
2) Turn the Pick roller bushing in the direction of the arrow.
Pick roller bushing
3) Attach the sheet guide.
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