Xerox 4520 User Manual page 225

Desktop laser printers
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Figure 7.6
Print Quality Problems (continued)
Problem
TrueRes Smoothing
problems
TrueRes Smoothing is a
technology that smooths
the jagged edges of
curved or near
vertical/horizontal lines.
Produce Test Prints (see
Chapter 3) with TrueRes
switched both ON and
OFF. Inspect the TrueRes
target on the Test Print:
If:
1.
TrueRes is not
functional (no
apparent difference
between ON and
OFF setting)
2.
TrueRes appears
excessively dark:
or
TrueRes appears
insufficient
Possible Causes
1.
Failed Controller
2.
Print Density set too dark/light
ˆ
C h a p t e r 7 : T r o u b l e s h o o t i n g
P r i n t Q u a l i t y P r o b l e m s
Corrective Actions
1.
Replace Controller.
Contact your dealer or Xerox / Rank
Xerox.
2.
Adjust Print Density (see Chapter 6).
7-51

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