Samsung CLP-31 Series - Page 125

Alignment & Troubleshooting
Service Manual
4-68
Samsung Electronics
15) LSU Error
1. Foreign matter stuck
onto the window of internal lenses
of LSU mirror
Cleaning foreign matter in LSU mirror
2. Main Controller LSU Part defect
Replace Main Controller
3. Micro Switch Harness
Replace Micro Switch Harness
Description
The printing is stop in the fad status, With LSU Error SM Message.