Lexmark E320 - Printer - B/W Service Manual page 45

Mirror motor failure service error code
The operator panel button has been pushed and a mirror motor
failure service error has occurred.
Once the error code is displayed, if the operator panel button is
pushed again, the operator panel displays the service error
indication (all six indicator lights blinking). Continual pressing of the
operator panel button causes the lights to repeat in the following
order:
1. Service error indication
2. Mirror motor failure service error code indication
3. Service error indication
Inspect the printhead cable and replace the assembly as necessary.
If this does not correct the problem, replace the engine/low voltage
power supply (LVPS) board.
4500–E320/E322
Diagnostic information
2-15