Open the extracted folder and launch the application.
If you prefer not to use a PC, you can configure the XP-420B's Wi-Fi directly from your mobile device using Xprinter’s official app.
(2.4GHz network is recommended, as most printer WiFi modules do not support 5GHz).
: Open the Diagnostic Tool (e.g., version 1.028). Set the interface to USB and click Get Status . The indicator should turn green if the connection is active.
Even with careful setup, you may encounter an issue. Here are solutions to the most frequent problems: xprinter xp420b wifi setup
The printer needs to know your WiFi network details before it can connect. This requires the configuration utility.
Select your network security type (usually WPA2-PSK). Password: Enter your WiFi password.
Navigate to the or Network Configuration tab within the Diagnostic Tool. Locate the Wi-Fi Settings section.
Ensure you have the following items ready before starting the configuration: Open the extracted folder and launch the application
Select the tab (the globe icon) at the top of the window. Enter the printer's IP address in the Address field. Set the Protocol to HP Jetdirect - Socket .
In the dropdown menu, click Select Software... , search for the Xprinter or compatible driver (like "4-inch Thermal Printer" or "Label Printer"), and select it. Click Add to finish. Phase 4: Setting Up Mobile Devices (iOS & Android)
The printer failed to log into your router. Double-check that your Wi-Fi password is correct, and confirm your router broadcasts a 2.4GHz signal.
To print from your computer over the Wi-Fi network (without needing a USB cable), you must create a Standard TCP/IP port and link it to your printer. : Open the Diagnostic Tool (e
Choose > "Add a printer using a TCP/IP address" . Device Type: TCP/IP Device.
Gather these essential elements before kicking off your wireless installation:
Set the IP Assignment to so your router automatically assigns an IP address to the printer. Step 4: Apply and Confirm
Connect your XP-420B to your computer using the USB cable and turn the printer on. Ensure you have labels loaded and the printer is showing a solid blue or green status light. Step 2: Open the Xprinter Diagnostic Tool Run the executable on your Windows PC. In the "Interface" section, select USB .