Maintenance and Troubleshooting
6-17
❏
Change the Threshold setting in the Image Control dialog box.
When
Text (Background Removal)
is selected as the Image
Type, change
Text Enhancement Technology
to
None
from the B/W Option in the Image Type dialog box. Then
change the
Threshold
setting in the Image Controls dialog
box. Or change
Text (Background Removal)
to
Text/Line
Art
, then change the
Threshold
setting in the Image Control
dialog box. See “Image Controls” on page 3-19.
Moiré (cross-hatch) patterns appear in the
scanned image
❏
Make sure Image Type is set to
Color Document
or
Black &
White Document
in the Manual mode window.
❏
Change the Image Type settings. Turn the De-screening
setting
On
in the Image Type dialog box.
❏
Place a transparent sheet such as an overhead projector sheet,
between the document and the document table.
❏
Reposition the document slightly.
❏
Make the image size slightly smaller.
Colors differ from the original.
❏
Calibrate the screen. See “Calibrating Your Screen” on page
4-2.
❏
Change the Image Type setting. See “Image Types” on page
3-7 to make sure your settings are correct.
❏
Printed colors do not exactly match the colors on your
monitor, since printers and monitors use different color
systems: monitors use RGB (red, green, and blue), while
printers typically use CMYK (cyan, magenta, yellow, and
black).
Summary of Contents for Series Perfection 1240U Series
Page 2: ... 2 ...
Page 8: ... 8 ...
Page 30: ...1 20 Using the Buttons ...
Page 50: ...2 20 Scanning Basics High Contrast Increases the contrast of dull images Open Shadow ...
Page 60: ...2 30 Scanning Basics ...
Page 94: ...3 34 Understanding EPSON TWAIN Features ...
Page 102: ...4 8 Calibrating Your System ...
Page 146: ...6 30 Maintenance and Troubleshooting ...
Page 160: ...A 14 Technical Specifications ...
Page 161: ...Contacting Customer Support B 1 Appendix B Contacting Customer Support Overview B 2 ...