Epson Pro GT-S80, User Manual

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Make sure the document lies perfectly straight in the input tray.
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Your Image Is Distorted or Blurred
Make sure your document is not wrinkled or warped.
Make sure you do not move the document, or your scanner while scanning.
Make sure the scanner is placed on a flat, stable surface.
Select
Unsharp Mask check box. See Adjusting the Color and Other Image Settings for
instructions.
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Your Scanned Image Is Too Dark
Check the Brightness setting. See Epson Scan Help for details.
Check the brightness and contrast settings of your computer monitor.
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Ripple Patterns Appear in Your Scanned Image
A ripple or cross-hatch pattern (called moiré) may appear in a scanned image of a printed
document. It is caused by interference from the differing pitches in the scanner’s screen and the
halftone screen in your original.
Original image Descreening applied