Epson ET-2800 Users Guide - Page 225
Characters are Not Recognized During Conversion to Editable Text (OCR)
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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 or Epson ScanSmart 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.) Parent topic: Solving Scanned Image Quality Problems 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. Parent topic: Solving Scanned Image Quality Problems 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. • Place the original at a slightly different angle. Parent topic: Solving Scanned Image Quality Problems Related references Additional Scanning Settings - Main Settings Tab Additional Scanning Settings - Advanced Settings Tab 225