Originally Posted by
DDY
I hate to ask the obvious, but you have 'shared' the printer on the host machine, right?
As in; settings > devices > printers and scanners > "your printer name here" > manage > printer properties > sharing > tick 'share this printer'
It used to about half that before Windows 10, but still, sharing USB only printer connected to a Windows machine over the local network is still perfectly possible.
With Windows 10 it's usually picked up by the other networked machine in the same 'printers and scanners' box as above when you click 'add a printer or a scanner'. If not try the 'the priner that I want isn't listed' option and use one of the many options, punching in the \\hostname\printername should do it, otherwise you've probably not shared the printer or the network settings are wrong e.g. machine are on a different subnet.