Fujitsu ScanSnap S300 Operator's Manual page 219

10. Attach the sheet guide to the scanner.
Hold the pickup tabs on the sheet guide between the thumb and index finger, and then attach
the sheet guide to the scanner.
Sheet guide
⇒
The sheet guide makes a clicking sound when the knobs fix into position.
Make sure that the sheet guide is completely attached. Otherwise, document
ATTENTION
jams or other feeding errors may occur.
11. Close the ADF.
ADF
⇒
You should hear the ADF click when it returns to its original position.
12. Turn on the scanner.
9.3 Replacing the Pick Roller
Pick-up tab
ScanSnap S300 Operator's Guide
Pick-up tab
Paper chute
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