Ripple Patterns Appear In An Image; Spots Or Lines Appear In All Scanned Images - Epson FF-640 User Manual

• If you are using OCR software, check the manual for any additional adjustments.
• Try using another software program, such as ABBYY FineReader, as the OCR engine. Start Epson
Scan and click File Save Settings. Select PDF as the File Type and click Options. Click the Text
tab. Make sure Fine Reader is selected as the OCR Engine setting and click OK twice. Try your scan
again using Epson Scan.
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Ripple Patterns Appear in an Image

You may see a ripple pattern (called a moiré) in scanned images of printed documents. This is caused
by interference from differing pitches in the scanner's screen and your original's halftone screen. To
reduce this effect, adjust these Epson Scan settings (if available) and try scanning again:
• Select the Descreening setting.
• Select a lower Resolution setting.
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Related references
Available Image Adjustments

Spots or Lines Appear in All Scanned Images

If spots or lines appear in all your scanned images, follow these steps to clean the scanner glass:
1. Turn off the scanner and unplug the AC adapter.
2. Disconnect any connected cables.
3. Pull down on the cover open lever and open the scanner cover.
Solving Scanned Image Quality Problems
Solving Scanned Image Quality Problems
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