Konica Minolta magicolor 2400W - Foggy Background

Field Service Ver. 4.0 Feb. 2006 20. Image Quality Problems
155
magicolor 2400W
magicolor 2430 DL
magicolor 2450
Troubleshooting
20.1.7 Foggy background
A. Typical faulty images
B. Troubleshooting procedure
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ABCD
ABCD
ABCD
ABCD
ABCD
Step Section Check Item Result Action
1
Drum Cartridge
Are there scratches or lines evi-
dent on the photo conductor sur-
face?
YES Replace the Drum Cartridge.
2 Is the outside dirty? YES Clean.
3
Is the connector or contact termi-
nal of the Drum Cartridge con-
nected properly?
NO
Clean the contact terminal or
reconnect the connector.
4 Toner Cartridge
Is the developing bias contact ter-
minal in good contact?
NO
Clean the contact terminal or
check the terminal position.
5
PH Unit
Is the connector or contact termi-
nal of the PH Unit connected
properly?
NO
Clean the contact terminal or
reconnect the connector.
6 Is the window surface dirty? YES Clean.
7 AIDC Sensor Is the sensor dirty? YES Clean.
8
Have steps 1-7 eliminated the
problem?
NO
Replace the Toner Cartridge.
→ Replace the PH Unit.
→ Replace the AIDC Sensor.