Introduction
This manual provides comprehensive instructions for the setup, operation, and maintenance of your MUNBYN Bluetooth Thermal Label Printer and Shipping Scale. Please read this manual thoroughly before use to ensure proper functionality and to maximize the lifespan of your devices.
Package Contents
Verify that all items are present in the package:
- MUNBYN Bluetooth Thermal Label Printer
- MUNBYN Shipping Scale
- Power Adapter for Shipping Scale
- 500 Thermal Direct Shipping Labels (4" x 6")
- USB Cable (for printer, if applicable)
- User Manual (this document)
Note: If a USB Flash Drive is not included, please contact MUNBYN for assistance with drivers or software.
Setup
1. Thermal Label Printer Setup
- Unpacking: Carefully remove the printer from its packaging.
- Power Connection: Connect the power adapter to the printer and plug it into a power outlet.
- Loading Labels:
Open the printer cover. Place the roll of 4" x 6" thermal labels into the label compartment, ensuring the labels feed smoothly. The print side of the label should face upwards. Close the cover securely.

Image: The MUNBYN thermal label printer shown with a label exiting the front, next to the shipping scale and a roll of labels. This illustrates the complete package contents.
- Bluetooth Pairing (for mobile devices):
- Download the "Labelife" app from your device's app store (iOS/Android).
- Ensure Bluetooth is enabled on your smartphone or tablet.
- Open the Labelife app and follow the in-app instructions to connect to your MUNBYN printer.

Image: An illustration demonstrating the printer's connectivity options, including Bluetooth for iOS, Android, and tablets, and USB for Mac, Windows, and Chrome OS.
- USB Connection (for computers):
Connect the printer to your computer using a USB cable. Install the necessary drivers from the MUNBYN website or the provided USB flash drive (if included).
2. Shipping Scale Setup
- Placement: Place the shipping scale on a flat, stable surface.
- Power Connection: Connect the power adapter to the scale and plug it into a power outlet.
- Initial Calibration: Turn on the scale. Allow a few seconds for it to stabilize and display "0.0".
Operating Instructions
1. Thermal Label Printer Operation
- Printing from Labelife App:
Open the Labelife app on your paired mobile device. Select or create your label design. Use the app's interface to cut, rotate, and adjust the label as needed. Tap the print button to send the label to the printer.
- Printing from Computer:
Ensure the printer drivers are installed. Open your shipping software or document editor. Select the MUNBYN printer from your printer list. Configure print settings (e.g., label size 4" x 6") and initiate printing.

Image: A detailed view of the printer's internal mechanism, highlighting the print head and the clear output of a printed label, emphasizing print quality.
- Print Speed:
The printer is capable of printing at speeds up to 150 mm/s or approximately 70 labels per minute.

Image: A visual representation of the printer's high-speed capability, showing labels being rapidly processed, with indicators for pieces per minute and millimeters per second.
2. Shipping Scale Operation
- Weighing Items:
Place the item to be weighed gently on the center of the scale platform. The weight will be displayed on the LCD screen.
- Unit Conversion:
Press the "UNIT" or "MODE" button (refer to scale's specific buttons) to cycle through available weight units (e.g., lb, oz, kg, g).
- Tare Function:
To weigh items in a container, place the empty container on the scale and press the "TARE" button. The display will reset to zero. Then, add the items to the container, and the scale will display only the net weight of the items.
- PCS Function (Counting):
This function allows you to count multiple items of the same weight.
- Step 1: Long-press the "PCS" button to enter sample number selection.
- Step 2: Press the "MODE" button to switch between sample sizes (e.g., 25, 50, 75, 100). Load the selected sample quantity onto the scale.
- Step 3: Short press the "PCS" button to confirm. "PASS" will appear on the screen.
- Step 4: Place the unknown number of items on the scale. The device will count and display the total quantity.

Image: A step-by-step visual guide demonstrating the Parts Counting System (PCS) function on the shipping scale, from sample selection to displaying the final count.
- Fold-up Mailer Holder:
The scale features a compact stand that can open upright to 90 degrees. This is useful for weighing irregular packages or rolling tubes, providing stable support.
Maintenance
1. Thermal Label Printer Maintenance
- Cleaning the Print Head:
Regularly clean the print head with an alcohol swab or a specialized thermal printer cleaning pen to ensure optimal print quality. Ensure the printer is turned off and cooled before cleaning.
- Label Storage:
Store thermal labels in a cool, dry place away from direct sunlight and heat to prevent degradation of the thermal coating.

Image: A roll of MUNBYN 4x6 thermal labels, illustrating their dimensions (4" width, 6" length, 4.7" roll diameter) and quantity (500 labels).
2. Shipping Scale Maintenance
- Cleaning:
Wipe the scale platform and body with a soft, damp cloth. Do not use abrasive cleaners or immerse the scale in water.
- Storage:
Store the scale in a dry environment. Avoid placing heavy objects on the scale when not in use to prevent damage to the sensors.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Printer not turning on | No power connection | Check power adapter and outlet connection. |
| Labels not printing clearly | Dirty print head, incorrect label type, low quality labels | Clean the print head. Ensure you are using thermal direct labels. Use authentic MUNBYN labels. |
| Bluetooth connection failure | Bluetooth off, device out of range, app issue | Ensure Bluetooth is enabled on your device. Move device closer to printer. Restart the Labelife app and printer. |
| Scale not displaying weight | No power, overload, unstable surface | Check power connection. Ensure item weight is within scale's capacity (66lb/30kg). Place scale on a flat, stable surface. |
| Inaccurate scale readings | Unstable surface, air currents, calibration needed | Ensure scale is on a stable, level surface away from drafts. Re-tare the scale before weighing. |
Specifications
- Printer Type: Thermal Direct Label Printer
- Connectivity: Bluetooth, USB
- Maximum Media Size: 4" x 6" (101.6mm x 152.4mm)
- Print Speed: Up to 150 mm/s (70 pcs/min)
- Printer Output: Monochrome
- Label Roll Diameter: Max 4.7'' (120mm)
- Labels Included: 500 labels (4" x 6")
- Scale Capacity: 66lb / 0.1oz (approximately 30kg)
- Scale Features: PCS Function, Fold-up Mailer Holder
- BPA/BPS Free Labels: Yes
Warranty and Support
This product comes with a limited warranty. For detailed warranty information, please refer to the warranty card included in your package or visit the official MUNBYN website. For technical support, troubleshooting assistance, or to inquire about replacement parts, please contact MUNBYN customer service through their official channels.
MUNBYN Official Store: Visit MUNBYN Store on Amazon





