Lexmark 4021 User Manual page 198

Troubleshooting
Serial port [x] disabled [56]
Try one or more of the following:
•
From the printer control panel, touch Continue to clear the message.
The printer discards any data received through the specified serial port.
•
Make sure Serial Buffer is not set to Disabled.
•
From the printer control panel, set Serial Buffer to Auto in the Serial [x] menu.
Some held jobs were not restored
From the printer control panel, touch Continue to delete the indicated job.
Note: Held jobs that are not restored remain in the printer hard disk and are inaccessible.
SMTP server not set up. Contact system administrator.
From the printer control panel, touch Continue to clear the message.
Note: If the message appears again, then contact your system support person.
Standard network software error [54]
Try one or more of the following:
•
From the printer control panel, touch Continue to continue printing.
•
Turn off the printer, and then turn it back on.
•
Update the network firmware in the printer or print server. For more information, visit the Lexmark
support Web site at
message.
Standard USB port disabled [56]
Try one or more of the following:
•
From the printer control panel, touch Continue to clear the message.
•
Enable the USB port. From the printer control panel, navigate to:
Network/Ports > USB Buffer > Auto
Note: The printer discards any data received through the USB port.
Supply needed to complete job
Do either of the following:
•
Install the missing supply to complete the job.
•
Cancel the current job.
http://support.lexmark.com or contact customer support, and then report the
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