Lexmark 4039-1XX - Manual (Page 24)

10 Service Manual
4039-1XX
977 Network Card Network card is installed but is not
communicating with the system board.
See “Network Card 977 Errors” on
page 23.
978 Network Card General network card hardware error.
Replace the Network Card.
979 Network Card General network card software error.
Verify that the network card is installed
and grounded correctly. If this error
returns after a POR, there is a software
or microcode incompatibility problem.
Do Not replace the card. Contact your
next level of support.
990 Duplex Option Duplex error. See “Duplex” on page 18.
991 Duplex System Card Failure Duplex system card failure. Replace the
duplex system card.
993 Duplex Comm. Failure Communications between the duplex
unit and the printer have failed.
See
“Duplex” on page 18.
Error/Code Action