Lexmark 4I3 - Manual (Page 244)

1. Press Stop.
2. Press Cancel Print.
3. Check that the serial configuration parameters are set correctly.
4. Press Start.
5. If the status code occurs again, call for service.
This is an informational message. The printer displays this message
after you press Hex Print. Press Start. All data will print in
hexadecimal code until you press Stop.
23 TRANSMIT BUFFER OVERRUN
PRESS STOP THEN CANCEL PRINT
24 PARITY ERROR
PRESS STOP THEN CANCEL PRINT
25 FRAMING ERROR
PRESS STOP THEN CANCEL PRINT
26 HEX PRINT MODE ACTIVE
B-14 User’s Guide