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External network adapter (ENA) connection lost
What this light sequence means:
The printer has lost the connection to an external print server (also
called an external network adapter or ENA).
What you can do:
• Make sure the cable connecting the ENA and the printer is
securely attached. Turn the printer off and then on to reset the
printer.
• Press and release Continue to clear the message. The printer
erases any reference to the ENA and then resets. Some data
loss may occur.
Invalid network code
What this light sequence means:
The code in an internal print server is not valid.
The printer cannot receive and process jobs until valid code is
programmed into the internal print server.
What you can do:
Download valid code to the printer internal print server. You can
download network code while this message is displayed.