Lexmark 4I3 - Manual (Page 261)

FE3 PRINTER BOARD FAILURE
SEE USER'S GUIDE
FE4 PRINTER BOARD FAILURE
SEE USER'S GUIDE
FE5 PRINTER BOARD FAILURE
SEE USER'S GUIDE
FE6 PRINTER BOARD FAILURE
SEE USER'S GUIDE
FE7 PRINTER BOARD FAILURE
SEE USER'S GUIDE
FF8 PRINTER BOARD FAILURE
SEE USER'S GUIDE
FF9 PRINTER BOARD FAILURE
SEE USER'S GUIDE
FFA EXTENDED MEMORY FAILURE
+
SEE USER'S GUIDE
Appendix B. Problems B-31