I would piggyback off the 192.168.1.1 network ( or whatever your main networks ip is ) with a separate router for guest services. I have a separate wireless network named (Garage) for my garage tv, garage door controller and Sonos speaker. I addressed this router 192.168.2.1 so there is no conflict with my main networks router. You'll need to connect to the router offline via the lan to a computer and address these settings
I have NAT enabled
Uncheck Mac clone
set your IP address manually
my guest network and garage network cannot see the printer.
is this what you're wanting to do not have guest access the printer on the network?