Konica Minolta magicolor 1600W, Service Manual

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19. Image quality problems Field Service V er. 1.0 Nov. 200 8
116
magicolor 1600W magicolor 1650EN
T
roubleshooting
19.1.5 Low image density
A. Typical faulty images
B. Troubleshooting procedure
ABCDE
ABCDE
ABCDE
ABCDE
ABCDE
4036fs4036c0
Step Section Check item Result Action
1
Imaging
cartridge
Is the outside dirty? YES Clean.
2
Is the contact dirty? YES Clean.
3 PH unit Is the window surface dirty? YES Clean.
4
2nd transfer
roller
Is the contact dirty? YES Clean.
5 Media Is the media damp? YES
Replace the media with new
media that has just been
unwrapped.
6
IDC sensor
board
Is the sensor dirty? YES Clean.
7
Have steps 1 to 6 eliminated the
problem?
NO
Replace the toner cartridge.
→
Replace the Imaging car-
tridge.
→
Replace the 2nd transfer roller.
→
Replace the PH unit.
→
Replace the IDC sensor board.
→
Replace the printer control
board.
→
Replace the high voltage unit.