Printing From Unix

Moving Print Queues from Over NT4 server to another,NT WS no prob. 2parts to this question:
1)
There are critical print jobs from Unix which
which goto these printers.

Many of the Print jobs come from remote loctions ie I don’t have acces to them.
(I also have minimal Unix Experince)

If this can be done how? (are the unix printers connecting to the ip)is succesfully done , I am moving the proxy that the Unix servers connect thru next later week ,will this also affect their ability to print?