How do I manually add a printer using its IP address as a workaround for Error 709?

If sharing continues to fail, try adding the printer manually using its IP address. Go to 'Settings' -> 'Bluetooth & devices' -> 'Printers & scanners' -> 'Add device'. Select 'Add manually', then 'Add a printer using an IP address or hostname'. Enter the printer's IP address and follow the prompts. This bypasses the sharing mechanism and connects directly.