Introduction
This manual provides detailed instructions for the setup, operation, maintenance, and troubleshooting of your Bewinner MTP-4B Thermal Label Printer. Please read this manual thoroughly before using the device to ensure proper function and longevity.
Package Contents
Verify that all items listed below are included in your package:
- 1 x Bewinner MTP-4B Thermal Label Printer
- 1 x CD (Driver/Software)
- 1 x Charging Plug (EU Standard)
- 1 x USB Cable
- 1 x User Manual
- 1 x Roll of Thermal Print Paper

Image: Bewinner MTP-4B printer with its accessories, including the USB cable, charging plug, and a roll of thermal paper.
Product Overview
The Bewinner MTP-4B is a portable thermal label printer designed for efficient and reliable printing. It features a compact design, wireless connectivity, and a long-lasting battery.
Key Features:
- Fast printing speed of 50 to 80 mm/s.
- Supports 80mm paper width.
- Wireless Bluetooth connectivity.
- Type-C interface for charging and data transfer.
- Easy operation with two control buttons.
- Built-in 2000mAh lithium-ion battery.
- Supports over 100 languages.
Printer Components:

Image: Top view of the printer, highlighting the 'OPEN' button for the paper compartment and the control panel with indicator lights for Power, Bluetooth (BT), Charge, and Error.
- OPEN Button: Used to open the paper compartment cover.
- Control Panel: Includes Power button, and indicator lights for Power, Bluetooth (BT), Charge, and Error.
- Type-C Port: Located on the side for charging and USB connection.
Setup
1. Charging the Printer
- Connect the provided USB cable to the printer's Type-C port.
- Connect the other end of the USB cable to the charging plug.
- Plug the charging plug into a standard AC power outlet (100-240V).
- The Charge indicator light will illuminate during charging. A full charge typically takes 2 to 4 hours.
2. Loading Thermal Paper
- Press the OPEN button on the top of the printer to open the paper compartment cover.
- Insert a roll of 80mm thermal paper into the compartment, ensuring the printing side faces upwards.
- Pull a small length of paper out beyond the cutting edge.
- Close the paper compartment cover firmly until it clicks into place.

Image: The printer with its top cover open, ready for thermal paper loading. A roll of thermal paper is shown alongside.
3. Connecting the Printer
Bluetooth Connection (Wireless)
- Ensure the printer is powered on. The Power indicator will be lit.
- Activate Bluetooth on your mobile device (Android) or computer (Windows, OS X).
- Search for available Bluetooth devices and select the printer (usually named "MTP-4B" or similar).
- If prompted for a PIN, enter 0000 or 1234.
- Once connected, the BT indicator light on the printer will be steady.
USB Connection
- Connect the printer to your computer using the provided USB cable.
- Install the printer drivers from the included CD or download them from the manufacturer's website.
- Follow the on-screen instructions to complete the driver installation.
Operating Instructions
1. Powering On/Off
- To power on, press and hold the Power button until the Power indicator light illuminates.
- To power off, press and hold the Power button until the Power indicator light turns off.
2. Printing
- Ensure the printer is connected via Bluetooth or USB and has paper loaded.
- Open the desired application on your connected device (e.g., label design software, receipt printing app).
- Select the print option within the application.
- Choose the "Bewinner MTP-4B" printer from the list of available printers.
- Adjust print settings (e.g., paper size, orientation) as needed.
- Initiate the print job. The printer will begin printing at a speed of 50-80 mm/s.

Image: A close-up view of the printer in operation, with a printed receipt emerging from the paper output slot.
Maintenance
1. Cleaning the Print Head
- Turn off the printer and disconnect it from power.
- Open the paper compartment cover.
- Gently wipe the thermal print head with a cotton swab lightly dampened with isopropyl alcohol.
- Allow the print head to dry completely before closing the cover and powering on the printer.
2. Battery Care
- To prolong battery life, avoid fully discharging the battery frequently.
- Charge the printer regularly, even if not in constant use.
- Store the printer in a cool, dry place when not in use for extended periods.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Printer does not power on. | Low battery or no power. | Charge the printer using the provided charger. Ensure the charger is properly connected. |
| No print output. | No paper, paper loaded incorrectly, or print head issue. | Check if thermal paper is loaded correctly with the printing side up. Ensure the paper compartment is closed. Clean the print head if necessary. |
| Poor print quality. | Dirty print head or low-quality thermal paper. | Clean the print head as described in the Maintenance section. Use high-quality thermal paper. |
| Cannot connect via Bluetooth. | Bluetooth not enabled, printer not discoverable, or incorrect PIN. | Ensure Bluetooth is enabled on both devices. Restart the printer and your device. Try PIN 0000 or 1234. |
| Printer not recognized via USB. | Missing or incorrect drivers. | Install or reinstall the printer drivers from the included CD or manufacturer's website. Try a different USB port or cable. |
| Error indicator light is on. | General error, often related to paper or cover. | Check for paper jams, ensure the paper compartment cover is fully closed, and restart the printer. |
Specifications
| Feature | Detail |
|---|---|
| Model | MTP-4B |
| Print Mode | Thermal Printing |
| Output Mode | Black and White (Monochrome) |
| Resolution | 203 DPI |
| Print Speed | 50 to 80 mm/s |
| Paper Type | Thermal Paper |
| Paper Form | Roll |
| Paper Width | 80 mm |
| Product Interface | Type-C (USB) |
| Connectivity | Bluetooth, USB |
| Compatible Systems | Windows, OS X, Android |
| Battery | Built-in 2000mAh Lithium-ion |
| Battery Charging Time | 2 to 4 hours |
| Charger Input | AC 100-240V |
| Charger Output | DC 5.0V 1000mA |
| Material | ABS |
| Color | Black |

Image: Bottom view of the printer, displaying the product label with model number and basic specifications.
Warranty and Support
Warranty Information
Specific warranty details are typically provided with your purchase documentation or on the product packaging. Please refer to these resources for information regarding warranty duration and terms. Keep your proof of purchase for warranty claims.
Customer Support
For technical assistance, troubleshooting beyond this manual, or warranty inquiries, please contact Bewinner customer support through the retailer where you purchased the product or visit the official Bewinner website for contact information.