Get a Lightning-to-USB Camera Adapter. Yes, for photos. But it’s a secret printer bridge. Plug one end into your iPad, the other into your printer’s USB cable. It just works.
Your iPad will see the printer instantly. No Wi-Fi. No passwords. Just a cable and a tiny plastic adapter. Quirky fact: This adapter costs less than a fancy coffee. And it turns your iPad into a portable print shop. Try doing that with a latte.