1. Introduction
This manual provides comprehensive instructions for the Phomemo M150 Label Maker, a versatile and portable thermal label printer designed for various labeling needs in home, office, school, and small business environments. It features Bluetooth and USB connectivity, inkless printing, and compatibility with both mobile devices and PCs.

Figure 1: Phomemo M150 Label Maker (Blue model shown)
2. What's in the Box
- 1 x Phomemo M150 Bluetooth Label Maker
- 1 x 40*30mm Label Roll
- 1 x USB Type-C Cable
- 1 x Instruction
3. Setup
3.1 Installing the Paper Roll
Follow these steps to correctly install the label paper roll into your Phomemo M150:
- Press down the cover and open the lever to open the top cover of the label maker.
- Push the guide lock towards the power button until you hear a click to unlock the guides.
- Place the paper roll in the paper compartment, ensuring the label side is facing down and the roll is placed in the right direction.
- Push the guide lock back to secure the paper roll.
- Close the top cover firmly until it clicks into place.
Video 1: How to Install Paper Roll. This video demonstrates the correct procedure for loading a new label roll into the Phomemo M150.

Figure 2: The Phomemo M150 supports various label styles and widths from 0.78'' to 1.96''.
3.2 Powering On and Charging
To power on your Phomemo M150, press and hold the power button located on the front. The indicator light will illuminate. To charge the device, connect the provided USB Type-C cable to the charging port on the side of the label maker and plug the other end into a compatible USB power source. The device is rechargeable and portable.
4. Operating Instructions
4.1 Connecting via Bluetooth (Mobile Devices)
The Phomemo M150 connects to your smartphone or tablet via Bluetooth using the "Print Master" app.
- Download the "Print Master" app from the App Store (iOS) or Google Play (Android).
- Ensure Bluetooth is enabled on your mobile device.
- Open the "Print Master" app and tap the printer icon at the top left corner to connect.
Attention: Do not connect the label maker directly through your phone's Bluetooth settings; connect only within the "Print Master" app.

Figure 3: Bluetooth connection process with the Phomemo M150 and the Print Master app.
4.2 Connecting via USB (PC/Mac)
For PC and Mac connectivity, you will need to install specific drivers and software.
- Connect the M150 label printer to your computer using the provided USB cable.
- Go to M150.Phomemo.com to download the necessary drivers and the "Labelife" software for your operating system (Windows or Mac).
- Follow the on-screen instructions to complete the driver and software installation.
Video 2: How to Use M150 Label Maker on Windows. This video guides you through connecting and using the M150 with a Windows computer.
Video 3: How to Use M150 Label Maker on Mac OS. This video provides instructions for connecting and using the M150 with a Mac operating system.
4.3 Creating and Printing Labels
The "Print Master" app (for mobile) and "Labelife" software (for PC/Mac) offer extensive customization options:
- Templates: Access over 300 built-in templates for various uses (barcode, QR code, name labels, address labels, price tags, food labels, etc.). Templates are regularly updated.
- Customization: Add text, icons, borders, images, and shapes. Adjust font styles, sizes, and positions.
- Image Recognition: The app supports image recognition for easy label creation from existing images.
- Batch Printing: Improve efficiency with batch printing capabilities.
- Auto Return Label: The M150 features an auto-return label function to minimize label waste.

Figure 4: The M150 provides high-quality, clear printing compared to other label makers.

Figure 5: The intelligent paper return function prevents waste of the first label.
Video 4: M150 Label Maker for Small Business. This video showcases how the M150 can be used for small business labeling needs.
Video 5: M150 Label Maker for Notebook Making. Demonstrates creative uses of the M150 for personalizing notebooks and journals.
5. Maintenance
To ensure optimal performance and longevity of your Phomemo M150 Label Maker, regular maintenance is recommended:
- Cleaning: Use a soft, dry cloth to wipe the exterior of the device. For the print head, use a cotton swab lightly dampened with rubbing alcohol. Ensure the device is powered off before cleaning.
- Storage: Store the label maker in a cool, dry place away from direct sunlight and extreme temperatures.
- Paper Rolls: Use only genuine Phomemo thermal label rolls to prevent damage to the print head and ensure print quality.
6. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Printer not connecting via Bluetooth | Not connected through the app; Bluetooth off; device too far. | Ensure Bluetooth is on. Connect via "Print Master" app, not phone settings. Move device closer. |
| Poor print quality (fading, unclear) | Low battery; incorrect paper installation; dirty print head; non-thermal paper. | Charge device. Reinstall paper correctly. Clean print head. Use thermal labels. |
| Labels not feeding correctly | Paper jammed; paper guides not set correctly; empty roll. | Clear any jams. Adjust paper guides. Replace paper roll. |
| Device not turning on | Battery depleted. | Charge the device using the provided USB-C cable. |
7. Specifications
| Feature | Detail |
|---|---|
| Model Name | M150-Blue |
| Printing Technology | Thermal (Inkless) |
| Print Resolution | 203 dpi |
| Max Print Width | 1.96 inches (50mm) |
| Connectivity | Bluetooth, USB Type-C |
| Compatible Devices | Smartphones (iOS, Android), PC, Tablets, Laptops |
| Power Source | Rechargeable Battery (1 A battery included) |
| Product Dimensions | 4.96 x 3.46 x 2.56 inches |
| Item Weight | 10.9 ounces (308 Grams) |
8. Warranty and Support
The Phomemo M150 Label Maker comes with a Limited Warranty. For specific warranty terms and conditions, please refer to the warranty information included with your product or contact Phomemo customer support.
Customer Support:
- Phone (US Only): +1 855 957 5321
- Email: support@phomemo.com
- Online Store: Visit the Phomemo Store on Amazon for additional products and resources.