Fujitsu FI-800R Operator's Manual page 22

No. Name
1 Pick roller (× 1)
2 Ultrasonic sensor (× 2)
3 Document sensor (× 4)
4 Eject roller (× 8)
5 Feed roller (× 4)
6 Glass (× 2)
7 Document loading detector (× 1)
8 Pad unit (× 1)
Function
A roller which feeds documents on the ADF paper chute
(feeder) into the ADF.
A sensor which detects overlapped documents by
ultrasonic soundwave.
It detects overlapped documents by monitoring the
difference in the amount of ultrasonic waves transmitted
through the documents.
A sensor which detects whether there is a document.
A roller which ejects documents from the ADF.
A roller which feeds documents through the ADF.
The surface which scans documents.
It detects whether a document is loaded or not in the ADF
paper chute (feeder).
A part which separates overlapped documents before they
are fed into the ADF.
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