Samsung ML-2851ND/XAZ Service Manual page 102

8) Defective motor operation
Description: Main motor is not driving when printing, and paper does not feed into the printer, resulting 'Jam 0'.
1. Contamination of the
pressure roller or heat roller
(Background, Hot off set).
2. Check the claw of the fuser
Service Manual
Alignment & Troubleshooting
whether it is deformed.
After disassembling the fuser,
clean contamination between the
heat roller and the thermostor and
remove the contamination of the
pressure roller.
1. If there is heavy background,
repair it by the background
troubleshooting method.
2. Clean the surface of the heat
roller with IPA or water
3. Check the warp or separation
of the print claw and the holder
plate claw, and then manage it.
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