Blank Copy, Black Copy - Konica Minolta magicolor 2490MF Service Manual

17. Miscellaneous errors
17.2.19

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 -
268
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 1-4 eliminated the
problem?
Field Service Ver. 1.0 Jul. 2006
Black print
4036fs4039c0
Result Action
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.