Samsung CLX-8540ND Service Manual page 337

● Code : B-4
● Symptom :
-. Vertical White Band for Copy Job
● Possible Cause:
1. There is a contaminant on Scanner optical path.
2. Scanner is defective.
● Troubleshooting method :
(1) If there is a contaminant on scan glass. Clean it.
(2) If the problem persists, replace the sensor or scanner unit.
Troubleshooting
● Vertical White Band for copy job
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