Ok looked at this link and the offending update is not on the PC which will not install the printer, and as such no action required. I can't see the offending PC from the other network PC even though the settings are identical in all respects on all PC in the network, and the offending PC can't see the other network PCs. All other PCs can see each other except the offending one. So untill the offending PC can see the rest of the network I'll not be able to install the printer.
Any suggestions