> >I have the unit blocked in my router so it can't surreptitiously update its firmware and start doing this. > Maybe this is a silly question, but how do you

> >I have the unit blocked in my router so it can't surreptitiously update its firmware and start doing this. > Maybe this is a silly question, but how do you do this without blocking wifi printing? Are you just stopping network egress from the printers IP address? > Edit - by wifi printing I mean on the same network, in house. I can guess that their routing table only allows routing from/to the printer's IP in the local network (wired or wireless). Any packet to/from outside world for the printer is dropped.