Epson WorkForce Pro WF-C8690 A3 Color MFP with PCL/PostScript - Manual (Page 413)

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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.
• 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
Related topics
Placing Originals on the Product
Line of Dots Appears in All Scanned Images
If a line of dots appears in all your scanned images, 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.
If you are scanning from the ADF, try cleaning the ADF and scan again.
Parent topic: Solving Scanned Image Quality Problems
Related tasks
Cleaning Your Product
Straight Lines in an Image Appear Crooked
If straight lines in an original appear crooked in a scanned image, make sure to place your original
straight when you scan it.
If you are scanning from the ADF, try cleaning the ADF and scan again.
Parent topic: Solving Scanned Image Quality Problems
Related topics
Placing Originals on the Product