Fujitsu Ricoh Fujitsu fi-7900 Image Scanner User Manual
Page 252

If the top edges are not aligned properly, the Paper Protection function may be activated
and stop the scan even when the documents are being fed correctly.
HINT
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Paper Protection is disabled in Manual Feed mode.
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It can also be configured from the scanner driver's setup dialog box or the operator panel.
Note that priority is given to the scanner driver setting unless you have prioritized the
operator panel setting.
Operational Settings
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