Samsung CLX-3175N/XAZ Service Manual page 138

Alignment & Troubleshooting
8) Multi-Feeding
Description
Multiple sheets of paper are fed at once.
1. Solenoid malfunction
Replace the solenoid if necessary.
(the solenoid does not work properly)
2. Pad-Friction is Clean the pad friction with soft clothe
contaminated with foreign matter.(oil...) dampened with IPA(Isopropyl Alcohol).
Use the smooth paper.
3. The face of paper is blended.
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Service Manual
Samsung Electronics