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Use documents that satisfy
the requirements. (*1)
NO
Fulfill the multi feed
detection conditions. (*2)
NO
YES
Do the documents satisfy the
conditions described under the
"Precautions" in "6.2 Document
Paper Quality"?
When the multi feed detection is
ON, are the multi feed detection
conditions fulfilled?(*2)
Were the documents fanned before
loaded on the ADF paper chute?
NO
Fan the documents before
loading, or reduce the
number of sheets of the
documents.
YES
Have the documents just been
printed out by a copier or laser
printer?
YES
Fan the documents 3 or 4
times to remove static
electricity from the paper.
YES
NO
Continued on the next page
Symptom 9
Do paper jams (multi feed errors)
occur frequently?
Is there any debris on the rollers
in the ADF?
YES
Remove debris from
the rollers (*4).
Is the ultrasonic sensor covered
with paper dust?
YES
Clean the ultrasonic sensor.
(*5)
NO
NO
NO
Set the paper thickness switch
to the "Normal" position. (*3)
Is the paper thickness switch set
on the "Normal" position?
YES
YES
When scanning documents
like this, disable the multifeed
detection.
Have you scanned a very thick
paper or plastic document?
NO