Poor Color Reproduction - Konica Minolta magicolor 2590MF Service Manual

17. Miscellaneous errors
17.2.15

Poor color reproduction

A. Typical faulty images
B. Troubleshooting procedure
Step Section
1 Paper
2 Transfer belt unit
3 IDC sensor
4 -
270
Check Item
Is the paper damp?
Is the terminal dirty?
Is the sensor dirty?
The problem has been eliminated
after performing step 3.
Field Service Ver. 1.0 Aug. 2007
4138fs4503c0
Result
Replace the paper with new
YES paper that has just been
unwrapped.
YES Clean.
YES Clean.
Replace the transfer belt unit.
→ Replace the IDC sensor.
→ Replace the printer control
NO
board.
→ Replace the hight voltage unit.
Action