Foggy Image - Samsung MultiXpress K4 Series Service Manual

A3 mono copier
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4. Troubleshooting

4.7.6. Foggy image

A. Typical faulty images
B. Troubleshooting procedure
Step
Check item
1
Voltage of OPC is abnormally low.
2
Toner is over supplied by abnormal TC sensor.
3
T1 Voltage is abnormally high
4
HVPS operates abnormally.
HVPS is damaged or broken.
4-203
Action
Replace Drum unit.
(Refer to 3.2.1.)
Replace the Toner cartridge.
(Refer to 3.2.2.)
Check the connection in HVPS.
– Connection of Transfer rollers in THV, TR
Replace HVPS.
(Refer to 3.3.5.)
Replace HVPS.
(Refer to 3.3.5.)
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