Konica Minolta Magicolor 5440 DL - Manual (Page 228)

Main Unit Field Service Image Quality Problems
4-41
IV
T
roub
lshoo
t
in
g
5.1.9 Void areas, white spots
A. Typical Faulty Images
B. Troubleshooting Procedure
4036fs4050c0 4036fs4051c0
Void areas White spots
Step Section Check Item Result Action
1
Adjustment
/Setting
Thick or Special media is being
used.
YES
Adjust the image with “TRANS-
FER VOLTAGE.”
(magicolor 5430 DL/5440 DL)
→ ENGINE/ENGINE SERVICE/
RESTORE USER DEFAULT/
TRANSFER VOLTAGE
Adjust the image with “TRANS-
FER POWER.” (magicolor 5450)
→ SERVICE MENU/ALIGNMENT
/TRANSFER POWER/
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 Transfer Belt dirty with fin-
gerprints, oil, or other foreign mat-
ter?
YES Clean.
5
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.
6
Is the Transfer Roller dirty or
scratched?
YES Change the Transfer Roller.
7
Is the ground terminal connected
properly?
NO Correct.
8
Media path
Is there a foreign matter on the
media path?
YES Remove foreign matter.
9
Is the Fusing Entrance Guide
Plate dirty or scratched?
YES Clean or change.
10
Has the problem been eliminated
through the checks of steps up to
8?
NO
Change the Toner Cartridge.
→ Change the Transfer Belt Unit.
5450_E.book_PDF.book 41 ページ ２００５年４月１２日 火曜日 午後１２時５４分