Epson Expression 1680 Reference Manual page 96

Paper quality:
Document type:
Document conditions
Make sure of the following before feeding a document:
Ink on the document is dry.
The document has no holes, is not ripped or wrinkled, and
has nothing attached to it.
The document has no staples or other objects attached that
might damage the feeder mechanism.
The document has no folds closer than 8 mm from its edge.
The document is neither bound nor a multipart form.
The document has no rear carbon coating.
The document has no cut out areas.
Other precautions
Do not feed photographic sheets or particularly valuable original
artwork into this Automatic Document Feeder; misfeeding a
document may result in accidental wrinkling or damage.
When you are scanning high-quality color or halftone documents,
it is recommended you open the Automatic Document Feeder and
scan documents individually.
High-quality bond or thermal paper
Documents printed with impact printers,
laser printers, or facsimile machines
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