tab and ensure a USB port (e.g., USB001 or USB002) is selected. Test Print Print Test Page to verify the connection. Troubleshooting Connectivity Issues Bluetooth Pairing : If using a mobile device, use the default passkey (often ) to pair the printer before opening your billing app. Garbage Characters : If the printer spits out random symbols, ensure your is set correctly—typically for these models. Maintenance
Try a different USB port (USB 2.0 is often more stable than USB 3.0 for legacy chips). Also, replace the USB cable – cheap cables can cause handshake failures. kp206b-ub driver