Lexmark E320 - Printer - B/W Service Manual page 50

4500–E320/E322
ASIC register failure service error code
The operator panel button has been pushed and an
application–specific integrated circuit ASIC register 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. ASIC register failure service error code indication
3. Service error indication
Replace the controller card.
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Service Manual