Samsung WC-M15i Series Service Manual page 79

Troubleshooting
Error code 3-110
Fault Vertical line getting curved
Description
When printing, vertical line gets curved.
Check
LSU
Engine board
Cause
1. For LSU, +24V supply is unstable in the engine board.
2. Difference according to LSU vendors
Solution
• Check the capacitor between CN 3 pin 5 and +24V is 100nF.
• Check the resistor R63 (12.1Kohm).
• Replace LSU.
• Replace the main board.
Remark
Others
5-42
Model ML-6100
Samsung Electronics