4-21
TROUBLESHOOTING
Service Manual
4.4.10 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.
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