Hmmm.... Cable came today so I set everything up. Somewhat annoyingly I then find an alternative socket, a square USB type right next to the IEEE 1284, That'll teach me to look at it all not see one and then become blind to any alternative there.
Printer seems to be operative despite it's age. Cartridge was ok, and I printer a test page from it. But given it's age I forwent trying the supplied CD first assuming it was probably out of date.
It all seems awkward in Win 10 but I believe I found the place where the PC looks for a new printer, but it didn't find it.
Next I tried
http://hardwaredata.org which searched itself for updated and finally downloaded dfsetup.exe. Having checked it was virus free I ran it, it installed driverfinder, which apparently won't run as I don't have permission ?! I thought I was downloading a driver not a finder.
So about to revert to the supplied CD as all else has failed. Ah well...