(12) Printer System: Foggy Background - Konica Minolta Di1610 Service Manual

(12) Printer system: Foggy background

<Troubleshooting Procedures>
Step
1 Is PC Drum scratchy?
2 Is developing bias contact terminal in good
contact with the mating part?
3 Is PH window dirty?
4 Is the problem eliminated after checks have
been made up to step 3?
<Typical Faulty Image>
4011T004AA
Check
T-36
Result Action
YES Replace Drum Cartridge.
NO Clean contact terminal or
check terminal position.
YES Clean.
NO Replace High Voltage Unit
(HV1).
Replace Controller/Mechani-
cal Control Board (PWB-P).