Konica Minolta magicolor 1600W, Service Manual

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Field Service V er. 1.0 Nov. 200 8 19. Image quality problems
123
magicolor 1600W magicolor 1650EN
T
roubleshooting
19.1.12 Blank copy, black copy
A. Typical faulty images
B. Troubleshooting procedure
4036fs4038c0
4036fs4039c0
Blank print Black print
Step Section Check item Result Action
1 Image check Does a blank print occur? YES
Check the PH unit connector for
proper connection.
2
Imaging
cartridge
Is the gear of the imaging car-
tridge drive mechanism installed
properly?
NO
Check or correct the drive trans-
mitting section or replace the
imaging cartridge.
3
Is the charge corona voltage con-
tact or photo conductor ground
contact of the imaging cartridge
connected properly?
NO
Check, clean, or correct the con-
tact.
4 High voltage unit
Is the connector connected prop-
erly?
NO Reconnect.
5
Have steps 1 to 4 eliminated the
problem?
NO
Replace the high voltage unit.
→
Replace the printer control
board.
→
Replace the PH unit.