Epson Expression 800 User Manual - TWAIN - Page 55

Problems with Image Quality

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You cannot scan images at all or only a few dots appear in the scanned image. Problem Solution You may have selected incorrect scan settings. Select different EPSON TWAIN Pro settings. You may have selected an incorrect Image Type or Destination setting, or the Exposure, Highlight, and Tone Correction settings may be inappropriate for your image. If Image Type is set to Line Art, try decreasing the Threshold setting. Problems with Image Quality Images are very dark and without details. Problem Solution Some EPSON TWAIN Pro settings may be set incorrectly. If the Halftone setting is available, make sure it is set to a halftone mode, not to None. Check that the Destination (output device) is set correctly. Try setting Destination to Screen or Screen Vivid if your printer isn't listed. Change the Exposure, Tone Correction, and Shadow settings to lighter values and scan the image again. Some application software does not support 36-bit color. If you set your Image Type to 36-bit Color, change the setting to 24-bit Color. Then scan again. Troubleshooting Page 55

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Troubleshooting
Page 55
You cannot scan images at all or only a few dots appear in the scanned image.
Problems with Image Quality
Images are very dark and without details.
Problem
Solution
You may have selected
incorrect scan settings.
Select different EPSON TWAIN Pro settings. You may have selected an
incorrect
Image Type
or
Destination
setting, or the
Exposure
,
Highlight
, and
Tone Correction
settings may be inappropriate for your
image. If
Image Type
is set to
Line Art
, try decreasing the
Threshold
setting.
Problem
Solution
Some EPSON TWAIN
Pro settings may be set
incorrectly.
If the
Halftone
setting is available, make sure it is set to a halftone mode,
not to
None
.
Check that the Destination (output device) is set correctly. Try setting
Destination to
Screen
or
Screen Vivid
if
your printer isn’t listed.
Change the
Exposure
,
Tone Correction
, and
Shadow
settings to
lighter values and scan the image again.
Some application software does not support 36-bit color. If you set your
Image Type to
36-bit Color
, change the setting to
24-bit Color
. Then
scan again.