16 back marking, 16 back marking -48 – Konica Minolta Magicolor 5440 DL User Manual
Page 235
Image Quality Problems
Main Unit Field Service
4-48
IV
T
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lshoo
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in
g
5.1.16
Back marking
A. Typical Faulty Images
B. Troubleshooting Procedure
4036fs4062c0
AA
AA
4036fs4063c0
Step
Section
Check Item
Result
Action
1
Media path
Is there a foreign matter on the
paper path?
YES
Remove the foreign matter.
2
Fusing Unit
Is the Fusing Entrance Guide
Plate dirty or scratched?
YES
Clean or change.
3
Is the Fusing Roller scratched or
dirty?
YES
Change the Fusing Unit.
4
Transfer Belt Unit
Is the Transfer Belt dirty with fin-
gerprints, oil, or other foreign mat-
ter?
YES
Clean.
5
Is the Transfer Roller dirty or
scratched?
YES
Change the Transfer Roller.
6
Has the problem been eliminated
through the checks of steps up to
5?
NO
Change the Transfer Belt Unit.
→ Change the Fusing Unit.
→ Change High Voltage Unit/1.
→ Change High Voltage Unit/2.
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