Fujitsu fi-4860C Operator's Manual page 200

5) At <Screen4-3>, by pressing
the detection timing can be selected.
(1) [Pick] is blinking:
(2) [Pick & Feed] is blinking: Double-feed is checked by the document pick
6) Press (Enter button) to confirm the setting.
Press (Exit button), and the LCD display goes back to [Ready] screen.
Double-feed detection accuracy increases when both thickness
and length of documents are checked.
HINT
When a double-feed is detected and the scanning operation is
ATTENTION
stopped, the last documents in the hopper or the one ahead of it
might have been double fed.
Depending on the document type, there are cases when dou-
ATTENTION
ble-feed can not be detected.
(Left arrow button) or
Double-feed is checked by the document pick
timing.
timing and during feeding.
7.3 Setup Mode Details
(Right arrow button),
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