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Solving Scanned Image Quality Problems
Check these sections if a scanned image on your computer screen has a quality problem.
Image Consists of a Few Dots Only
Line of Dots Appears in All Scanned Images
Straight Lines in an Image Appear Crooked
Image is Distorted or Blurry
Image Colors are Patchy at the Edges
Image is Too Dark
Back of Original Image Appears in Scanned Image
Ripple Patterns Appear in an Image
Scanned Image Colors Do Not Match Original Colors
Scanned Image Edges are Cropped
Parent topic:
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.
Parent topic:
Solving Scanned Image Quality Problems
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:
Summary of Contents for ET-3750U
Page 1: ...ET 3750U User s Guide ...
Page 2: ......
Page 21: ...21 Product Parts Inside 1 Document cover 2 Scanner glass 3 Control panel ...
Page 53: ...53 2 Pull out the paper cassette until it stops 3 Slide the edge guides outward ...
Page 144: ...144 3 Open the ink tank cover then open the cap for the ink tank you are going to fill ...