06/2014
3-7
WC 5022/5024
3.1.4 Image Quality Troubleshooting
Image Quality Troubleshooting
Version 1.0
IQ5 Residual Image(Ghosting)RAP
Ghost images appear on the paper. Parts of the previous page or current page appear as ghost
images on the paper.
Procedure
Remove the Drum Cartridge (PL 8.1) (REP 8.1.1) and reinstall it. Turn the power OFF then ON
and print. The problem reoccurs.
YN
End
Install the new Drum Cartridge (PL 8.1) (REP 8.1.1) securely. Turn the power OFF then ON
and print. The problem reoccurs.
YN
End
Remove the Fusing Unit (PL 7.1) (REP 7.1.1) and check the surface of the Heat Roll for con-
tamination. The surface of the Heat Roll is clean.
YN
Clean away the contamination. If there is difficulty in removing the contamination, replace
the Fusing Unit (PL 7.1) (REP 7.1.1).
Replace the ESS/MCU PWB (PL 18.3) (REP 18.3.2).
IQ6 Background RAP
The whole page or part of the page is contaminated by toner. The contamination appears as
very light grayish color.
Procedure
Check for contamination on the Platen Glass. The Platen Glass is clean.
YN
Clean any contamination on the Platen. If it is very dirty, replace the Top Cover (PL 1.2)
(REP 1.2.1).
Remove the Drum Cartridge (PL 8.1) (REP 8.1.1) and reinstall it. Turn the power OFF then ON
and print. The problem reoccurs.
YN
End
Install the new Drum Cartridge (PL 8.1) (REP 8.1.1) securely. Turn the power OFF then ON
and print. The problem reoccurs.
YN
End
Check the surface of the BTR for contamination and distortion. The surface of the BTR is
clean and there is no distortion.
YN
Clean the BTR. If there is distortion, replace the BTR Roll (PL 6.1) (REP 4.1.1).
Remove the HVPS and reinstall it. Turn the power OFF then ON and print. The problem
reoccurs.
YN
End
Replace the ESS/MCU PWB (PL 18.3) (REP 18.3.2).
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