Blank Copy, Black Copy - Konica Minolta magicolor 2500W Service Manual

19. Image quality problems
19.1.12

Blank copy, black copy

A. Typical faulty images
B. Troubleshooting procedure
Step Section
1 Image check
2
Drum cartridge
3
4 High voltage unit
5
172
Blank print
4036fs4038c0
Check item
Does a blank print occur?
Is the gear of the drum cartridge
drive mechanism installed prop-
erly?
Is the charge corona voltage con-
tact or photo conductor ground
contact of the drum cartridge con-
nected properly?
Is the connector connected prop-
erly?
Have steps 1 to 4 eliminated the
problem?
Field Service Ver. 1.0 Aug. 2006
Black print
4036fs4039c0
Result
Check the PH unit connector for
YES
proper connection.
Check or correct the drive trans-
NO mitting section or replace the
drum cartridge.
Check, clean, or correct the con-
NO
tact.
NO Reconnect.
Replace the high voltage unit.
→ Replace the printer control
NO
board.
→ Replace the PH unit.
Action