Lexmark T420 Setup Manual page 31

Note:
On Windows computers,
click Start Programs
Command prompt (or
Accessories Command
prompt if using Windows 2000).
2
Ping the printer and verify that it responds. For example, at a
command prompt on a network computer type "ping" followed
by the new printer IP address (for example, 192.168.0.11):
ping xxx.xxx.xxx.xxx
If the printer is active on the network, you should receive a
reply.
Configure for TCP/IP
27