Samsung SCX-4216F - Vertical Line Getting Curved

7-9
Samsung Electronics
TROUBLESHOOTING
Service Manual
7.2.10 Vertical Line Getting Curved
• Description
When printing, vertical line gets curved.
Check and Cause Solution
1. If the supply of +24v is unstable in the Main Control board
linking with LSU, check drive by DCU Mode: LSU Check
-05- LSU Motor on.
1. Replace LSU.
2. Replace the Main Control board.