Introdución
This manual provides comprehensive instructions for the safe and efficient operation of your MUNBYN RW402B Bluetooth Thermal Label Printer and IPS03 440lb Postal Scale. Please read this manual thoroughly before use and retain it for future reference. This guide covers setup, operation, maintenance, and troubleshooting for both devices.
Información de seguridade
Para garantir un funcionamento seguro e evitar danos, observe as seguintes precaucións de seguridade:
- Keep both devices away from water, moisture, and direct sunlight.
- Use só o adaptador de corrente subministrado coa impresora.
- Non intente desmontar nin reparar os dispositivos vostede mesmo. Póñase en contacto co servizo de atención ao cliente para obter axuda.
- Asegúrese de que a impresora estea colocada sobre unha superficie estable e plana durante o funcionamento.
- Avoid placing heavy objects on the scale platform beyond its maximum capacity.
- Manter fóra do alcance dos nenos.
Contido do paquete
Verifique que todos os elementos estean presentes no seu paquete:
- 1 x MUNBYN RW402B Thermal Label Printer
- 1 x MUNBYN IPS03 440lb Postal Scale (Weighing Platform + LCD Display Unit)
- 1 x Power Adapter for Printer
- 1 x USB Cable for Printer
- 1 x Manual de usuario (este documento)
Printer Setup (RW402B)
1. Desembalaxe e colocación
Remove the printer from its packaging. Place the printer on a stable, flat surface near a power outlet and your computer or mobile device.
2. Conexión de alimentación
Connect the power adapter to the printer's power port and then plug it into a wall outlet. The printer will power on automatically or can be turned on using the power button.
3. Cargar etiquetas
Open the printer cover. Place the label roll into the label compartment, ensuring the labels feed smoothly. The printer features automatic label size detection, recognizing label sizes from 1.57" to 4.3" (40mm to 110mm) to simplify setup.

Image: Loading labels into the MUNBYN RW402B printer, showcasing automatic label size detection.
4. Driver Installation (for USB Connection)
For printing via USB from a Windows or macOS computer, you may need to install the printer drivers. Visit the MUNBYN official website or refer to the included driver CD (if applicable) for the latest drivers and installation instructions.
5. App Installation (for Bluetooth Connection)
For printing via Bluetooth from a mobile device (Android/iOS) or computer (Windows/ChromeOS/macOS), download the MUNBYN Print App or MUNBYN Editor. You can find the app by searching in your device's app store or by visiting the following link:

Image: MUNBYN RW402B printer demonstrating Bluetooth and USB printing capabilities.
Scale Setup (IPS03)
1. Desembalaxe e colocación
Remove the scale components from their packaging. Place the weighing platform on a firm, level surface to ensure accurate readings.
2. Conectando a pantalla
Connect the coiled cable from the weighing platform to the LCD display unit. Ensure the connection is secure.

Image: MUNBYN IPS03 postal scale LCD display unit with cable connection and button functions.
3. Acendido
Preme o ON/OFF button on the LCD display unit to power on the scale. The display will light up, typically showing '0.0' or '0.00' when ready.
Operating Instructions - Printer (RW402B)
Printing via Bluetooth (MUNBYN Print App)
- Ensure Bluetooth is enabled on your mobile device and the printer is powered on.
- Open the MUNBYN Print App or MUNBYN Editor.
- Follow the in-app instructions to connect to your RW402B printer via Bluetooth.
- Select the label design or document you wish to print and initiate the print command from the app.
Printing via USB (Windows/macOS)
- Conecte a impresora ao seu ordenador mediante o cable USB proporcionado.
- Ensure the printer drivers are installed correctly.
- Open the document or label design on your computer.
- Select the MUNBYN RW402B as your printer from the print dialog and send the print job.
Automatic Label Size Detection
The RW402B printer automatically detects the size of the labels loaded, supporting widths from 1.57" to 4.3". This feature eliminates the need for manual configuration, streamlining your printing process.
Print Accuracy
The MUNBYN RW402B is designed to produce clear and precise labels, ensuring that barcodes are easily scannable for accurate tracking and delivery. This minimizes errors and improves efficiency in shipping operations.

Image: Comparison of barcode print quality, highlighting the precision of MUNBYN printing.
Operating Instructions - Scale (IPS03)
1. Pesaxe básica
- Ensure the scale is powered on and displays '0.0' or '0.00'.
- Coloque con coidado o elemento a pesar no centro da plataforma de pesaxe.
- Le o peso que aparece na pantalla LCD.
2. Cambio de unidades
Preme o U (Units) button on the LCD display to cycle through available weighing units: kilograms (kg), ounces (oz), pounds (lb), and pounds/ounces (lb/oz).
3. Función de retención
The Hold Function allows you to lock the weight reading on the display even after removing the package. This is useful for recording weights without rushing.
- Coloca un elemento na báscula.
- Preme o H (Hold) button to lock the displayed weight.
- For items over 20kg (44lb), the scale will automatically lock the weight.
- Preme o T (Tare) button to reset the display for the next use.

Image: Demonstrating the Hold Function of the MUNBYN IPS03 postal scale.
4. Función de tara
The Tare Function allows you to subtract the weight of a container, so you only measure the net weight of the items inside.
- Coloque un recipiente baleiro na plataforma de pesaxe.
- Preme o T (Tare) button. The display will reset to '0.0' or '0.00'.
- Place the items to be weighed into the container. The display will show only the weight of the items.

Image: Step-by-step guide for using the Tare Function on the MUNBYN IPS03 postal scale.
Mantemento
Limpeza de impresoras
- Asegúrate de que a impresora estea apagada e desconectada antes de limpala.
- Use un pano suave e sen pelusa dampenxugado con auga ou alcol isopropílico para limpar o exterior da impresora.
- Gently wipe the print head with a specialized print head cleaning pen or a cotton swab lightly dampenriquecido con alcohol isopropílico. Déixeo secar completamente antes de usalo.
- Remove any dust or label residue from the label path.
Limpeza de escalas
- Wipe the weighing platform and LCD display unit with a soft, damp pano.
- Non empregue produtos de limpeza abrasivos nin mergulle a báscula en auga.
Almacenamento
When not in use, store both devices in a cool, dry place, away from direct sunlight and extreme temperatures.
Resolución de problemas
If you encounter issues with your MUNBYN devices, please refer to the following common solutions:
- A impresora non se acende: Asegúrate de que o adaptador de corrente estea conectado correctamente tanto á impresora como a unha toma de corrente que funcione.
- A impresora non se conecta (Bluetooth): Check that Bluetooth is enabled on your device and the printer is within range. Restart both the printer and your mobile device.
- A impresora non se conecta (USB): Verify the USB cable is securely connected. Ensure printer drivers are installed correctly on your computer.
- Mala calidade de impresión: Clean the print head. Ensure you are using high-quality thermal labels. Check label orientation.
- Etiqueta de mermeladas: The RW402B features MicroJam Technology to minimize jams. If a jam occurs, power off the printer, carefully remove the jammed labels, and ensure the label path is clear before restarting.
- Scale Not Powering On: Check battery installation (if applicable) or power connection for the display unit.
- Inaccurate Scale Readings: Ensure the scale is on a flat, stable surface. Recalibrate if necessary (refer to specific calibration instructions if provided separately, or contact support). Avoid placing items that exceed the maximum weight capacity.
For further assistance, please contact MUNBYN customer support.
Especificacións
Impresora térmica de etiquetas MUNBYN RW402B
| Método de impresión | Térmica directa |
| Ancho da etiqueta | 1.57" to 4.3" (40mm to 110mm) |
| Conectividade | Bluetooth, USB |
| Compatibilidade | Windows, macOS, ChromeOS, Android, iOS |
| Vida útil | Up to 970,000 shipping labels |

Image: MUNBYN RW402B printer's impressive label lifespan.
MUNBYN IPS03 Postal Scale
| Rango de medición | 50g - 200kg (1.8oz - 440lb) |
| Precisión | Within 0.5% margin of error |
| Unidades | kg, oz, lb, lb/oz |
| Mostrar | LCD con retroiluminación azul |
| Dimensións da plataforma | Aprox. 12.4" x 10.2" (31.5 cm x 26 cm) |
| Display Unit Dimensions | Aprox. 3.5" x 2.4" (9 cm x 6.2 cm) |

Image: Dimensions and measuring range of the MUNBYN IPS03 440lb postal scale.
Garantía e Soporte
Your MUNBYN RW402B Thermal Label Printer and IPS03 Postal Scale come with a 24-month technical support period. For any technical assistance, troubleshooting, or warranty inquiries, please contact MUNBYN customer service through the official website or your purchase platform. Please have your model number and purchase date available when contacting support.





