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Symptom
Vertical lines appear on the
scanned document.
The scanning density is
uneven.
The color of the scanned
document is very different
from the original document.
Dark spots or noise appear
on the scanned documents.
Scanned image has moire
fringes or patterns, such as
stripes or wavy pattern
noise.
Image crop failures with
VRS scanning.
Possible Cause
The ADF glass areas.
The reference plates.
The ADF glass areas or reference
plates are dirty.
The distribution of the quantity of light
in the scan varies.
The settings of the computer display or
the monitor are not correct.
The ADF glass areas or reference
plates are dirty.
This is caused by the original printing
pattern on the document and the
selected scanning resolution.
There are unwanted objects such as
paper or dust on the reference plates.
www.bbhscanners.com
Remedy
Clean the ADF glass areas. See
page
81.
Clean the reference plates. See
page
81.
Clean the ADF glass areas and
reference plates. See
page 81
page
86.
Perform the shading adjustment.
See
page
130.
Adjust the computer display and monitor
settings.
Clean the ADF glass areas and
reference plates. See
page 81
page
86.
Use the moire reduction function or
change the scanning resolution, then
scan the document again.
Examine and clean the reference plates.
See
page
81.
and
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