Konica Minolta Magicolor 5440 DL - Manual (Page 223)

Image Quality Problems Main Unit Field Service
4-36
IV
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5.1.4 Uneven density in CD
A. Typical Faulty Images
B. Troubleshooting Procedure
4036fs4046c0 4036fs4047c0
Step Section Check Item Result Action
1
Adjustment
/Setting
The Printer is being operated at
high altitude.
YES
Adjust the image with “ALTITUDE
SETUP” (magicolor 5430 DL/
5440 DL)
→ ENGINE/ENGINE SERVICE/
RESTORE USER DEFAULT/
ALTITUDE SETUP
Adjust the image with “IMAGE
ADJ PRAM”. (magicolor 5450)
→ SERVICE MENU/ALIGN-
MENT/IMAGE ADJ PRAM
2
Toner Cartridge
Are there scratches or lines evi-
dent on photo conductor surface?
YES Change the Toner Cartridge.
3 Is the outside dirty? YES Clean.
4
Transfer Belt Unit
Is the contact on the rail of the
Transfer Belt Unit in good contact
with the mating part?
NO Check or correct contact.
5
Is the Transfer Belt dirty with fin-
gerprints or oil?
YES Clean.
6
Is the Transfer Belt dirty or
scratched?
YES
Wipe the surface clean of dirt with
a soft cloth. Change a scratched
Transfer Belt for a Transfer Belt
Unit.
7 Is the terminal dirty? YES Clean.
8
Is the Transfer Roller dirty or
scratched?
YES Change the Transfer Roller.
9
Has the problem been eliminated
through the checks of steps up to
7?
NO
Change the Toner Cartridge.
→ Change the Transfer Belt Unit.
→ Change High Voltage Unit/1.
→ Change High Voltage Unit/2.
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