Samsung CLX-8540ND Service Manual page 347

Digital color laser mfp
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● Code : I-2
● Symptom :
-. Foggy Backgrounds for a Particular Color
● Possible Cause:
1. Imaging unit charging defect / HVPS charging, HV output defect.
2. Environment recognition sensor defect.
● Troubleshooting method :
[case1] Imaging unit charging defect / HVPS charging, HV output defect.
(1) Replace the imaging unit.
(2) If the problem persists, replace the HVPS-L.
(3) If the problem persists, replace the HVPS-S.
[case2] Environment recognition sensor defect.
(1) Check if there are heat, cold wind by heater or air-conditioner. These things make the
environment recognition sensor get wrong information. In this case, move the machine in
proper place.
(2) Replace the environment recognition sensor.
Troubleshooting
● Foggy Background
<Environment recognition sensor >
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