@gaaunapoi 1st responder Cosmowave is right.. You could arrange for a prot forward in your router. But this is highly unsafe as the DWC is not created with security or this purpose as it seems. And your printer is connected to HighCurrent AC.. and holds heating components. Any people who get access to your DWC page may be very smart and figure out how to sabotage your device. (And maybe even cause damage to your printer or create a firehazard.) You should not give the internet access to your printer!
Please consider setting up an VPN to get access to the wifi at home and only access the printer using the VPN first.