Lexmark 4I3 - Manual (Page 249)

1. Press Stop.
The left margin automatically resets to 20 units. See Chapter 1,
“Setting Up the 4230 Printer.”
2. Press Start.
1. Turn the power Off (O).
2. Wait 10 seconds, then turn the power On (|).
3. If the printer displays the message again, call for service.
35 MARGIN ERROR TIMEOUT
ADJUST MARGIN OR LINE LENGTH
42 MACHINE CHECK
SEE USER'S GUIDE
43 MACHINE CHECK
SEE USER'S GUIDE
44 MACHINE CHECK
SEE USER'S GUIDE
Appendix B. Problems B-19