Print-Quality Troubleshooting 5-15
Solid Dark or Dirty Prints, No Border
The prints appear very dirty and brown over
the entire page.
This print-quality symptom is a composite
image of all colors with no margin. This is
caused by a charge voltage failure. For
information on the Imaging Unit charge
contacts, see "Theory of Operation" on
page 2-1.
Note
After replacing any component in Step 2 or 3, run the Clean the Imaging Unit
from the Maintenance section of Service Diagnostics. See "Service Diagnostic
Tests" on page 3-9.
Troubleshooting Procedure
Step Check Yes No
1
Is the problem resolved after
replacing the Imaging Unit?
Complete Go to Step [2].
2
Inspect the Imaging Unit charge
voltage contacts (PL9.1.5) and the
Bias Housing Assembly (PL 9.1.4) in
the printer for any damage or
defects. See "Imaging Unit Charge
Voltage Contacts" on page 2-36.
Complete Go to Step [3].
3
Is the problem resolved after
replacing the Sub-High Voltage
Supply Board, page 8-87?
Complete Replace the Engine
Control Board,
page 8-107.
S6200-292
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