Low Image Density - Konica Minolta magicolor 2400W Service Manual

Field Service Ver. 4.0 Feb. 2006
20.1.5

Low image density

A. Typical faulty images
B. Troubleshooting procedure
Step Section
1 Drum Cartridge Is the outside dirty?
2 PH Unit
3
Transfer Belt Unit
4
2nd Transfer
5
Roller
6 Paper
7 AIDC Sensor
8
ABCDE
ABCDE
ABCDE
ABCDE
ABCDE
Check Item
Is the window surface dirty?
Is the contact on the rail of the
Transfer Belt Unit in good contact
with the mating part?
Is the contact dirty?
Is the contact dirty?
Is the paper damp?
Is the sensor dirty?
Have steps 1-7 eliminated the
problem?
20. Image Quality Problems
4036fs4036c0
Result
YES Clean.
YES Clean.
NO Check or correct contact.
YES Clean.
YES Clean.
Replace the paper with new
YES paper that has just been
unwrapped.
YES Clean.
Replace the Toner Cartridge.
→ Replace the Transfer Belt Unit.
→ Replace the 2nd Transfer
Roller.
→ Replace the PH Unit.
NO
→ Replace the AIDC Sensor.
→ Replace the Mechanical
Control Board.
→ Replace the High Voltage Unit.
Action
153