Low Image Density - Konica Minolta MagiColor 1600W Service Manual

19. Image quality problems
19.1.5

Low image density

A. Typical faulty images
B. Troubleshooting procedure
Step Section
1
Imaging
cartridge
2
3 PH unit
2nd transfer
4
roller
5 Media
IDC sensor
6
board
7
116
ABCDE
ABCDE
ABCDE
ABCDE
ABCDE
Check item
Is the outside dirty?
Is the contact dirty?
Is the window surface dirty?
Is the contact dirty?
Is the media damp?
Is the sensor dirty?
Have steps 1 to 6 eliminated the
problem?
Field Service Ver. 1.0 Nov. 2008
4036fs4036c0
Result
YES Clean.
YES Clean.
YES Clean.
YES Clean.
Replace the media with new
YES media that has just been
unwrapped.
YES Clean.
Replace the toner cartridge.
→ Replace the Imaging car-
tridge.
→ Replace the 2nd transfer roller.
→ Replace the PH unit.
NO
→ Replace the IDC sensor board.
→ Replace the printer control
board.
→ Replace the high voltage unit.
Action