Changing Print Processor

Hi. I have problems with my printing jobs. My topic is
http://www.unix.com/unix-dummies-questions-answers/52413-lj4300-lj5m-printer-network-works-only-sometimes.html\#post302164871
I'm thinking about to change the print processor who actually is HPPRN05 and put in a WinPrint. Do I have to save any system information before? is there any danger to change the printer processor of a TCP/IP network printer connected with another one to a network server with the same HPJetDirect?. Thanks