Fujitsu fi-4220C Operator's Manual page 95

Does double-feed occur frequently?
Symptom 9
Do the documents satisfy
conditions described under the
"Precautions" in "6.2 Document
Paper Quality"?
YES
When the double-feed detection is
ON, are the double-feed detection
conditions fulfilled? (*2)
YES
Were the documents fanned before
loaded into the ADF paper chute?
YES
Have the documents just been
printed out on a copier or laser
printer?
NO
Is the document stack 5 mm
or less?
YES
fi-4220C Image Scanner Operator's Guide
5.2 Remedying Typical Troubles
NO
Use documents that satisfy
the requirements. (*1)
Fulfill the double-feed
NO
detection conditions. (*2)
Fan the document before
NO
loading, or reduce number
of sheets of the documents.
YES
Fan the documents 3 or 4
times to remove static
electricity from the paper.
NO
Reduce the number of sheets
of the document.
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