If the official site is down, use trusted POS forums like:
If the test page prints gibberish or nothing, the “USB001” port is wrong. Delete the printer and retry, but at step 6, choose “Standard TCP/IP Port” and enter 127.0.0.1 (for raw USB redirection) or use the “USB Virtual Port” option. thermal receipt printer kp206b-ub driver
If no setup.exe:
on Google Play supports many 58mm Bluetooth/USB thermal printers. Documentation If the official site is down, use trusted