If you have changes computers- perhaps operating systems too?
Windows XP[an NTSF system] will not run kit that operates on Win 95/8[DOS]based systems.
Take out any dprinter srivers that are currently installed[Start/Printers-Faxes] right click on icon press delete.
Now plug printer in.
Windows will say 'Found New Hardware'-disc or list.
You select -'list' and navigate to the printer make nd and then printer model[ore one nearest].
That should do it.