VariQuest
®
Perfecta™ 3600STP
User’s Guide
6-43
Troubleshooting Scan and Copy Issues
Color fringing.
Color fringing occurs when the scanner is affected by incorrect paper
advance and/or miscalibration. (some color fringing is unavoidable,
especially at high scanning speeds). Fringing is most noticeable at the
borders of sharp black text over a white background, as in the example
(original on left, scanned image on right). Note the black arrow
indicating the scanning direction.
1. Repeat the scan after changing the following:
•
Scan
: Increase resolution (300dpi or higher quality)
•
Copy
: Best resolution
• Turn original 90 degrees, if possible.
2. If the problem persists, clean and calibrate the scanner as
indicated in
“Clean the Scan Bars” on page 5-16
3. If the problem still persists, analyze the
E
patterns of the
diagnostic plot. The black horizontal lines appear slightly
colored at the top and bottom of each end (example on right).
Normally, they look red at the top and blue or green at the
bottom, but it could be the other way around.
4. If you see this effect,
contact your VariQuest dealer and report
“color fringing problem after calibration.”
Copy and Scan Quality Issues
(Continued)
Problem
Suggested Action
