Epson WorkForce Pro WF-7820 All-in-One Inkjet Printer - Manual (Page 352)

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To adjust the colors in your scanned image, adjust these Epson Scan 2 or Epson ScanSmart settings (if
available) and try scanning again:
• If the Image Type setting is Auto , Color or Grayscale , adjust the Contrast setting.
• If the Image Type setting is Black & White or Grayscale , adjust the Color Enhance setting.
Parent topic: Solving Scanned Image Quality Problems
Image Consists of a Few Dots Only
If your scanned image consists only of a few dots, try these solutions:
• Make sure you placed your original for scanning facing the correct way.
• If the Image Type setting is Black & White , adjust the Threshold and scan again.
• Remove any lint or dirt from your original.
• Clean the scanner glass.
• Do not press on the original or the document cover with too much force.
Parent topic: Solving Scanned Image Quality Problems
Related references
Additional Scanning Settings - Advanced Settings Tab
Line of Dots Appears in All Scanned Images
If a line of dots appears in all your scanned images, try these solutions:
• Clean the scanner glass with a soft, dry, lint-free cloth or use a small amount of glass cleaner on the
cloth, if necessary. Paper towels are not recommended.
Caution: Do not spray glass cleaner directly on the scanner glass.
• Make sure any interface cables are securely connected at both ends.
If you are scanning from the ADF, make sure the ADF edge guides fit against the loaded originals. You
can also try cleaning the ADF and scanning again.
Parent topic: Solving Scanned Image Quality Problems
Related tasks
Cleaning Your Product