Printer System: Blank Or Black Prints - Konica Minolta bizhub 160 Service Manual

22. Image quality problem
22.4.8

Printer System: Blank or Black Prints

A. Troubleshooting Procedures
Step
1 Is a printed page blank?
2 Is the coupling of the drive mechanism of the
Imaging Cartridge properly connected?
3 Is the drum charge voltage contact point or PC
Drum ground contact point of the Imaging Car-
tridge properly connected?
4 Is the High Voltage Unit (HV1) connector con-
nected properly?
5 Is the problem eliminated when step 4 was
checked?
264
<Typical Faulty Images>
4011T035AA
Check
Field Service Ver. 1.0 Apr. 2005
4011T036AA
Result Action
YES Check PH Unit connectors for proper
connection.
NO Check coupling of drive mechanism
for connection and correct as neces-
sary, or replace Imaging Cartridge
(Drum Cartridge, Toner Cartridge).
NO Check, clean, or correct contact point.
NO Connect it properly.
NO Replace High Voltage Unit (HV1).
Replace Controller/Mechanical Con-
trol Board (PWB-P).
Replace PH Unit.