Canon DR-5060F Instructions Manual page 71

Condition
Cause and remedy
Condition
Cause and remedy
Skew error occurs even though paper is not being fed
at an angle.
This error occurs when the area 5 mm (0.2 in.) from the top
edge of the original contains text or pictures or the original
has a dark background. If this error occurs, turn skew
detection OFF and scan the document again. Or, make a
copy of the document on different paper, provide a wider
margin around the document (or lighten the background),
and scan the document again.
When the imprinter is used, the document becomes
dirty.
This is because ink is sticking to the holes on the guide
plate on the inside of the imprinter. Clean these holes with a
cotton wool swab.
69
Paper Feed Trouble
4