Epson Expression 800 TWAIN Pro Guide de l'utilisateur télécharger pdf (Page 61)

Troubleshooting Page 61

Moiré (crosshatch) patterns appear in the scanned image.

Problem Solution

You have scanned a

document with halftone

patterns.

To minimize moiré patterns, try the following:

◗ Place a transparent sheet between the document and the document

table to unfocus the image slightly.

◗ Move or angle the document slightly.

◗ Adjust the Sharpness setting to a lower value to unfocus the image.

See Customizing Destination Settings

for more information.

◗ Change the Scale setting slightly.

◗ In the Image Type dialog box, make sure the Scanning Mode option

is set to Best and the De-screening option is set to On. See

Customizing Image Types

for details.

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Epson Expression 800 TWAIN Pro Guide de l'utilisateur Page 61