Lexmark C720 Service Manual page 99

5024-001
Message
54 Serial x Fax
Connection Lost
54 Std Par ENA
Connection Lost
Description
The printer has
detected the
external modem
that was once
connected to the
serial port is no
longer responding.
• If the printer has
been configured
to receive faxes
from a serial port
and the Fax Port
setting is not set
to disable, it polls
the model.
• If it detects the
modem
connection is
missing, it
displays the
attendance
message.
• If the modem
connection is re-
established, the
printer removes
the message from
the display.
An external network
adapter (ENA) that
was once
connected to the
standard parallel
port is no longer
responding. The
printer only
recognizes the
missing connection
when the printer is
first turned On.
Action
If the modem has been
intentionally disconnected, you
can press Go to clear the
message and continue
printing.
Ensure the cable connecting
the ENA and the printer is
securely attached. Turn the
printer Off and then On again
to see if the printer recognizes
the connection.
Press Go to clear the
message. The printer erases
any reference to the ENA and
then resets.
Diagnostic Information
2-19