HP Jetdirect 250M User Manual page 7

For peer-to-peer printing (where each computer prints directly to the network printer),
run the installer (as in step 3) on each computer.
For client/server printing (where each computer sends print jobs through a network
server computer), you need run the installer only on the server, and set up the server for
printer sharing. Then each client computer must install the printer driver and connect to the
shared printer on the network server. (An easy way to do this is to use the Microsoft Windows
Point and Print function. See your operating system documentation for details on Point and
Print.)
For basic information on peer-to-peer and client/server printing, see the Network Basics
Tutorial on the HP Jetdirect CD.