My printing dialogue shows some printers I don't knwo about. One is called "duerqxesz5090", one "print" and the last one "prt0". prt0 has "Hacked by Swan" as location, so I want to know what device this is. (Screenshot)
But I don't know how this printer is discovered and how I find out more about it. Is this done via SSDP?
I am using lubuntu 17.04