Fujitsu ScanSnap S500 Operator's Manual page 183

6. Remove the pick roller with its shaft.
Slightly pull up the left part of the Pick roller shaft (about 5mm), move it towards the left
side, and then raise it to remove from the scanner.
Pick roller shaft
If the around the pick roller is dirty by paper-powder, it may cause a scanning
ATTENTION
error. Remove the dirt using a dry cloth moistened with Cleaner F1.
* Don't use water, mild detergent or air-spray.
7. Remove the pick roller from its shaft.
Pull out the shaft from the pick roller while lifting up its tab.
7.3 Replacing the Pick Roller
Pick roller
Tab
Shaft
Pick roller
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