Panasonic KV-S1057C Service Manual page 248

Appendix
Symptom
The image for a scanned
document is blank.
Vertical streaks appear on the
scanned document.
The scanning density is
uneven.
The color of the scanned
document is extremely
different from the original
document.
Dark spots or noise appear on
the scanned documents.
There is noise or wave
patterns (moire pattern) on
the scanned image.
The sound made by paper
being ejected is higher than
usual when you scan short
documents.
If you still experience problems after following these suggestions, please contact our Technical Support
Department at 1-800-726-2797 for further assistance. (U.S.A. only)
68 Operating Manual
Possible Cause
The document to be scanned was
loaded upside down.
The scanning glasses are dirty.
The scanning glasses are dirty.
The settings of the computer monitor
are wrong.
Depending on the documents
scanned, the color of documents may
not be scanned properly. For
example, the color of a highlighter pen
may be scanned lighter than it
appears.
The scanning glasses are dirty.
The scanning resolution settings,
combined with patterns within the
scanned image, may cause this
problem.
If the length of documents are less
than about 148 mm (5.8 in.), feeding
speed control will be activated for
exiting documents; this is normal
behavior.
Remedy
Load the document correctly.
(page 38)
Clean the scanning glasses.
(page 53)
Clean the scanning glasses.
(page 53)
Adjust the computer monitor settings.
Setting the value for Chroma higher in
the scanning conditions may solve
this problem.
Clean the scanning glasses.
(page 53)
Change the scanning resolution, and
perform scanning again.
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