Area Not To Be Perforated - Fujitsu ScanSnap N1800 Operator's Manual

A.4 Area not to be Perforated
ADF feed problems can occur while scanning if the document has any holes (punched,
etc) in the shaded area shown in the following figure.
Control point for scan
Front side
Feed
direction
25 mm 25 mm
Center of paper
471
Page top
Page bottom