Printer Driver

I have used an HP LaserJet 4100n for years with an Intel MacPro runnning 10.6.8. Apple keeps pushing new printer drivers at me through software update and I go to great lengths to stick with what works. After a recent crash, my old driver (version 7.1 I think) disappeared and I can no longer find a link to the old driver. HP was no help whatsoever and told me that Apple is removing web links to legacy drivers. Anybody know where I can get a driver that works with my Snow Leopard system? FYI, I can print fine with a late 2013 iMac running Mavericks but I have a huge inventory of legacy files and need to print from the MacPro from time to time.