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re-calibrate the scanner, (refer to page 19 — Calibrating
Advantage).
Paper Jams
Check the paper path for materials that may be lodged
between the plastic plates. If you see an object blocking the
pathway, carefully remove it by inserting a stiff sheet of paper
or an unfolded paper clip through the plates.
Invalid ID Number
Check the ID number marked by the student for accuracy.
An invalid ID number message will appear if two or more marks
have been detected in a row. If you receive an invalid ID mes-
sage for a form that does not have an ID grid try re-calibrating
the scanner, (refer to page 19 — Calibrating Advantage).
Paper Misfed
There may be an object interfering with the paper path
which is causing the scan sheet to skew. If there is an object
between the paper path, carefully remove it with a stiff sheet
of paper or an unfolded paper clip. If you are unable to remove
the object, refer to page 21 to remove the front cover. Always
make sure the guideedge of the scan sheet is laying fl at in
the insertion channel. If scan sheets are fed crooked a paper
misfed message will appear. If this error message continues,
try re-calibrating the scanner. If this error message persists
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