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DOCUCOLOR 12 USER GUIDE 13–23 PROBLEM SOLVING
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The image quality gradually degrades on
successive copies, or copies made with set-
tings used previously are significantly worse
than copies you are making now.
The internal process control function of the
copier/printer has degraded.
Place a white sheet of paper on the Docu-
ment Glass and run 35 blank copies using
Full Color in the Output Color feature. Make
a copy of the document again. The copy
quality output should be improved. If not,
ensure that the image quality selections,
which may have been misadjusted previ-
ously to remedy the initial problem, are set to
the appropriate levels.
Adjust the Auto Screening Adjustment fea-
ture in the Tools Mode. Contact your System
Administrator or refer to the System Admin-
istration Guide.
Copies have dark bands on the lead edge
and a corner when 100% Reduce/Enlarge is
selected.
The bands may be caused by curled edges
on the document or by misregistration of the
document on the Document Glass.
Ensure that the document is registered cor-
rectly.
Ensure that the Edge Erase is at No Erase
(2 mm). Increasing the amount of Edge
Erase should remove more of the dark
bands. Increasing the amount of Edge
Erase, however, may eventually cause
image loss.
Copies have dark bands on the lead edge
and a corner when 100% Reduce/Enlarge is
selected and the DADF is used.
The bands may be caused by curled edges
on the document or by misregistration of the
document by the Duplex Automatic Docu-
ment Feeder (DADF). Ensure that the Edge
Erase is at No Erase (2 mm). Increasing the
amount of Edge Erase should remove more
of the dark bands. Increasing the amount of
Edge Erase, however, may eventually cause
image loss.
Problem Suggested Solution