Lexmark 302 User Manual
Page 217

1. Turn the power Off (O).
2. Wait 10 seconds, then turn the power On (|).
3. If the printer displays this status code again, call for service.
1. Install a new ribbon.
2. Turn the power Off (O).
3. Wait 10 seconds, then turn the power On (|).
4. If the printer displays this status code again, call for service.
The printer displays this message only while Darker or Lighter is
held down. These key functions are valid only after the printer is
ready and the automatic forms thickness adjustment (AFTA)
measurement has been made. It is best to use these keys only
when the printer is printing.
A1 MACHINE CHECK
SEE USER'S GUIDE
A2 MACHINE CHECK
SEE USER'S GUIDE
A3 MACHINE CHECK
SEE USER'S GUIDE
A4 MACHINE CHECK
SEE USER'S GUIDE
A9 FUNCTION NOT AVAILABLE
USE DURING PRINTING
Appendix B. Problems
B-17