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VariQuest
®
Perfecta™ 3600STP
User’s Guide
Troubleshooting Scan and Copy Issues
Wrinkles or folds.
Scanners based on CIS technology have a high optical resolution
within their focus plane, at the price of a very limited depth of field.
The images are sharp and detailed when the scanned original is
perfectly flat against the glass plate. However, if the original
contains wrinkles or folds, these defects are clearly visible in the
scanned image (see example).
1. To correct:
•
Scan
: Re-scan the original and set the background color and
noise removal to
Off
.
•
Copy
: Set the content type to
IMAGE
.
2. If the problem persists:
•
Scan
: Re-scan the original at a lower scanner resolution (300 dpi
or lower resolution.
•
Copy
: Set resolution to
Fast
or
Normal
Note:
It may also help to flatten the original manually as much as
possible before scanning it again.
Note:
Due to the technological limitations of CIS technology, the
problem of wrinkles cannot always be solved. If the wrinkles remain
after the corrective actions explained above, then no further action
can be taken to improve the image quality, except to buy a more
expensive CCD scanner.
Copy and Scan Quality Issues
(Continued)
Problem
Suggested Action
