Canon IMAGEFORMULA DR-2020U - Manual (Page 21)

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• Do not wear loose clothing or jewelry that may get caught in the
scanner while you are using it. Doing so may result in personal
injury. Be extra careful of neckties and long hair. If anything
becomes caught in the scanner, immediately disconnect the power
plug from the power outlet to stop the scanner.
• Documents with curled edges may result in folds and paper jams.
Make sure to straighten out the curls before loading documents in
the scanner.
• Handle paper edges with care, and be careful not to cut your fingers
when loading documents.
Documents That Cannot Be Scanned
with the Feeder
Use the flatbed (platen glass) to scan the following types of
documents. Using the feeder may result in paper jams and damage to
the scanner.
Wrinkled or creased
paper
Carbon-backed paper
Curled paper Coated paper
Torn paper Extremely thin paper
Paper with clips or
staples