HP Jetdirect 250M User Manual page 184

computer, the installation will not complete successfully. This is usually a
problem if you are running the installer from the HP Jetdirect CD (the CD
that came in the print server box if you bought your printer and print
server separately). That installer is a general-purpose installer that works
with virtually any HP printer and print server, and consequently doesn't
know the details about drivers for any particular printer.
Any printer that can use the HP Jetdirect 200m and 250m print servers
comes with its own CD, which contains a similar installer. There's a
significant difference, though: the installer on the printer's CD knows
where to find the printer driver (it's right there on the CD).
So if your installation fails and you've used the Jetdirect CD, try it again
using the printer's CD. Alternatively, if the printer's CD isn't handy, you
can download the driver
Jetdirect CD, and point to the driver files you downloaded when the
installer asks for them.
Installed printer stops working (DHCP problems)
If you have successfully installed your network printer and later find that
you can't print to it, you may have a problem related to DHCP (the
Dynamic Host Configuration Protocol).
In a DHCP environment, a DHCP server allocates IP addresses from a
pool as they are needed by computers and printers on the network. DHCP
is common in medium-to-large networks in office settings, and also in
Internet connections via telephone modem, cable modem, or DSL. DHCP-
supplied addresses are dynamic -- that is, they can change -- and may
cause problems for computers and printers, which expect IP addresses to
be static.
To determine whether your print server is using a DHCP-supplied
address, use one of these methods:
Print a configuration
TCP/IP section.
Use the embedded web
Method entry in the TCP/IP section under the Networking tab.
If your print server acquired its IP address via DHCP, it may have
changed its address since you set up the printer; this would make the
printer unavailable. For instance, if someone unplugged the printer that
held the print server, or if the power in your building went out, the print
server may have acquired a different IP address when the power was re-
applied. You can find out whether your IP address has changed by
comparing the original IP address of your print server with the address
shown on the configuration page (IP Address parameter in the TCP/IP
from HP's web site; then use the installer on the
page. Check the Config By parameter in the
server. Check the IP Configuration