Fujitsu scansnap ix500 Operator's Manual page 444

Ultrasonic sensor (×2)
Gently wipe the dirt and dust off the surface of the ultrasonic sensors.If you have
trouble wiping the ultrasonic sensors with the cloth, use a cotton swab.
2.
Clean the feed roller and eject roller.
1.
Connect the power cable, and press the [Scan] button for 3 seconds with the ADF
top section open.
ATTENTION
Connect the power cable only when cleaning the feed rollers and eject rollers.
2.
Clean the feed roller and the eject roller with a cloth moistened with Cleaner F1.
ATTENTION
Do not use water or mild detergent to clean the inside of the ScanSnap.
It may take a long time for Cleaner F1 to dry if an excessive amount is used. Moisten the cloth
with a moderate quantity.
Wipe off the cleaner completely to leave no residue on the cleaned parts.
Feed roller (×2)/Eject roller (×2)
Press the [Scan] button to rotate the rollers. Gently wipe the dirt and dust off while
taking care not to damage the surface of the rollers. Make sure that they are
cleaned properly because residue on the rollers will affect the feeding
performance.
HINT
Pressing the [Scan] button seven times will rotate the feed rollers and the eject rollers one
revolution.
Cleaning the Inside of the ScanSnap
444
Eject roller (×2)
Feed roller (×2)