5. If the problem persists, proceed to analyze areas I and J of the diagnostic plot across modules =, 1 and 3.
In the three examples below, the top example is ideal, the middle example can be regarded as
acceptable; but, if you see something similar to the bottom example (or worse), replace the scanbar.
Small color dierences between adjacent Scanbars
When scanning wide plots, sometimes slightly dierent colors can be seen at both sides of the junction
between two scanbars. This issue, if present, can be easily seen by analyzing patterns A and G of the
diagnostic plot at the intersection between scanbars. Here are some examples. Please note the black arrow
indicating the scanning direction in these examples.
Sometimes the color mismatch between adjacent modules can be enormous, showing a serious scanner
malfunction, as in the following example. If this occurs, see Completely wrong colors on page 164.
ENWW Scan and copy quality troubleshooting 155
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