Blank Copy, Black Copy - Konica Minolta magicolor 2400W Service Manual

20. Image Quality Problems
20.1.12

Blank copy, black copy

A. Typical faulty images
B. Troubleshooting procedure
Step Section
1 Image check
2
Drum Cartridge
3
High Voltage
4
Unit
5
160
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
connected properly?
Is the connector connected prop-
erly?
Have steps 1-4 eliminated the
problem?
Field Service Ver. 4.0 Feb. 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 Mechanical Con-
NO
trol Board.
→ Replace the PH Unit.
Action