Samsung WC-M15i Series Service Manual page 81

Troubleshooting
Fault Jitter
Description
When printing, image is irregular.
Check
LSU, Motor bracket
Cause
1. LSU hexahedron period
2. Defective motor bracket gears
Solution
1. Replace the LSU.
2. Replace the motor bracket ass'y.
Remark
Others
5-44
Model ML-6100
Samsung Electronics