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345
Line of Dots Appears in All Scanned Images
Straight Lines in an Image Appear Crooked
Characters are Not Recognized During Conversion to Editable Text (OCR)
Scanned Characters are Blurry
Image Colors are Patchy at the Edges
Ripple Patterns Appear in an Image
Streaks Appear in All Scanned Images
Scanned Image Edges are Cropped
Parent topic:
Scanned Image Quality Problems
If you encounter quality problems with your scanned image, try these solutions:
Image is Distorted or Blurry
• Make sure your original is not wrinkled or warped. This may prevent the original from laying flat on the
scanner glass.
• Do not move your original or your product during scanning.
• Clean the scanner glass and the ADF and remove and dirt or dust on your originals.
• Do not press on the document cover or the original with too much force.
• Your product will not operate properly while tilted at an angle. Place your product on a flat, stable
surface that extends beyond its base in all directions.
• Adjust these Epson Scan 2 or Epson ScanSmart settings (if available) and try scanning again:
• Make sure you select the correct
Image Type
for your original.
• Increase the
Resolution
setting.
• If the
Image Type
setting is
Black & White
, adjust the
Threshold
setting. (The
Image Option
must
be set to
None
or
Color Enhance
.)
• If the
Image Type
setting is
Color
or
Grayscale
, select the
Unsharp Mask
setting.
• If the
Image Type
setting is
Black & White
, select
Text Enhancement
. If the
Image Type
setting is
Color
or
Grayscale
, change the
Text Enhancement
setting to
High
.
Image is Too Dark
• Make sure you select the correct
Image Type
for your original.
Summary of Contents for WF-4820 Series
Page 1: ...WF 4820 WF 4830 Series User s Guide ...
Page 2: ......
Page 14: ......
Page 34: ...34 Product Parts Inside 1 Document cover 2 Scanner glass 3 Control panel ...
Page 49: ...49 Related topics Wi Fi or Wired Networking ...
Page 97: ...97 1 Open the document cover ...
Page 160: ...160 3 Select Scan You see a screen like this 4 Select Computer You see a screen like this ...
Page 176: ...176 You see an Epson Scan 2 window like this ...
Page 178: ...178 You see an Epson Scan 2 window like this ...
Page 192: ...192 You see a screen like this 2 Click the Save Settings tab ...
Page 197: ...197 You see this window ...
Page 251: ...251 Parent topic Printing Fax Reports ...
Page 293: ...293 Related tasks Loading Paper in the Cassette ...
Page 295: ...295 5 Open the document cover ...
Page 297: ...297 8 Open the ADF cover ...
Page 324: ...324 3 Open the ADF cover 4 Carefully remove any jammed pages ...