Konica Minolta Magicolor 5440 DL - Manual (Page 224)

Main Unit Field Service Image Quality Problems
4-37
IV
T
roub
lshoo
t
in
g
5.1.5 Low image density
A. Typical Faulty Images
B. Troubleshooting Procedure
ABCDE
ABCDE
ABCDE
ABCDE
ABCDE
4036fs4036c0
Step Section Check Item Result Action
1
Adjustment
/Setting
The Duplex Option is being used,
and also the Printer is being oper-
ated in the climate such as dry or
highly humid.
(magicolor 5430 DL/5440 DL)
YES
Adjust the image with “DUPLEX
DENSITY”
(magicolor 5430 DL/5440 DL)
→ ENGINE/ENGINE SERVICE/
RESTORE USER DEFAULT/
DUPLEX DENSITY
The Printer is being operated in
the climate such as dry or highly
humid (magicolor 5450.)
Adjust the image with “TRANS-
FER POWER” (magicolor 5450)
→ SERVICE MENU/ALIGNMENT
/TRANSFER POWER/
2 Toner Cartridge Is the outside dirty? YES Clean.
3 PH Unit Is the window surface 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 terminal dirty? YES Clean.
6 Paper Is the paper damp? YES
Replace the paper with paper that
has just been unwrapped.
7
AIDC Sensor/Rt,
AIDC Sensor/Lt
Is the sensor dirty? YES Clean.
8
Has the problem been eliminated
through the checks of steps up to
6?
NO
Change the Toner Cartridge.
→ Change the Transfer Belt Unit.
→ Change the PH Unit.
→ Change the AIDC Sensor.
→ Change the Mechanical
Control Board.
→ Change High Voltage Unit/1.
→ Change High Voltage Unit/2.
5450_E.book_PDF.book 37 ページ ２００５年４月１２日 火曜日 午後１２時５４分