Characters Are Not Recognized During Conversion To Editable Text (Ocr); Image Colors Are Patchy At The Edges; Ripple Patterns Appear In An Image - Epson EcoTank ET-8550 User Manual

Characters are Not Recognized During Conversion to Editable Text (OCR)

If characters in your scanned images are not recognized during OCR conversion, try these solutions:
• Make sure your original is loaded straight on your product.
• Use an original with clear text.
• When saving scanned images as Searchable PDFs, make sure the correct OCR language is selected.
• Adjust the following Epson Scan 2 settings if available, and try scanning again:
• On the Main Settings tab, make sure you select the correct Image Type for your original.
• On the Main Settings tab, set the Resolution between 200 and 600 dpi.
• On the Advanced Settings tab, select Text Enhancement and choose a setting.
Note: The Text Enhancement setting depends on the selected Image Type.
• If the Image Type is set to Black & White, adjust the Threshold setting on the Advanced Settings
tab. (The Image Option must be set to None or Color Enhance.)
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Related references
Additional Scanning Settings - Main Settings Tab
Additional Scanning Settings - Advanced Settings Tab

Image Colors are Patchy at the Edges

If you are scanning a thick or warped original, cover its edges with paper to block external light as you
scan it.
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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 2 settings (if available) and try scanning again:
• Select the Descreening setting.
• Select a lower Resolution setting.
Parent topic:
Solving Scanned Image Quality Problems
Solving Scanned Image Quality Problems
Solving Scanned Image Quality Problems
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