Lexmark 20T3751 - T 620dn B/W Laser Printer User Reference Manual page 130

53 Unformatted
Flash
What this message means:
The printer detects unformatted flash memory.
What you can do:
•
Press to clear the message and continue printing. You must format the flash memory
Go
before you can store any resources on it.
•
If the error message remains, the flash memory may be defective and require replacing.
54 Serial
Option <x> Error
What this message means:
The printer has detected a serial interface error on a serial port.
What you can do:
•
Make sure the serial link is set up correctly and you are using the appropriate cable.
•
Press to clear the message and continue printing. The job may not print correctly.
Go
•
Press to open the Job Menu and reset the printer.
Menu
54 Network <x>
Software Error
What these messages mean:
The printer cannot establish communications with an installed network port.
What you can do:
•
Press to clear the message and continue printing. The job may not print correctly.
Go
•
Program new firmware for the network interface by way of the USB or parallel port.
•
Press to open the Job Menu and reset the printer.
Menu
54 Std Par ENA
Connection Lost
54 Standard
Serial Error
54 Std Network
Software Error
54 Par <x> ENA
Connection Lost
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