2-24 Service Manual
4500–E320/E322
Engine communication failure service error code
The operator panel button has been pushed and an engine
communication 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. Engine communication failure service error code indication
3. Service error indication
Replace the engine board.
Error codes/conditions not detected or reported
The printer does not detect or report the following conditions/errors:
• Incorrect manual feed
• Output bin full
• Print cartridge missing (reported as “top cover open” error)
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