1. Introduction
Thank you for choosing the MARKLIFE P50 Label Printer. This manual provides detailed instructions for setting up, operating, and maintaining your device. Please read this manual carefully before use to ensure optimal performance and longevity of your label printer.
2. Product Overview
The MARKLIFE P50 is a compact and portable thermal label printer designed for various labeling needs. It features Bluetooth connectivity for mobile devices and USB connectivity for PC, a built-in 1200mAh battery, and supports Type-C charging.

The MARKLIFE P50 Label Printer in white, showcasing its compact design.
3. Setup
3.1 Unboxing and Initial Charge
Upon unboxing, ensure all components are present. The package typically includes the P50 label printer and a roll of labels. Connect the printer to a power source using the provided Type-C cable to fully charge the built-in 1200mAh battery before first use.

The compact P50 printer being placed into a handbag, emphasizing its portability, built-in 1200mAh battery, and Type-C charging.
3.2 Loading Labels
- Open the label compartment cover.
- Insert the label roll with the printing surface facing up.
- Ensure the label is fed smoothly through the guide and slightly protrudes from the output slot.
- Close the cover securely.

The P50 printer shown with three rolls of labels: 1.57x1.18 inches (40x30mm) rectangular, 1.57x1.18 inches (40x30mm) rectangular, and 2x2 inches (50x50mm) circular labels, demonstrating label compatibility.
3.3 App/Software Installation
Download the official MARKLIFE app from your mobile device's app store or the dedicated software for PC from the manufacturer's website. Follow the on-screen instructions to install.
4. Operating Instructions
4.1 Power On/Off
Press and hold the power button for a few seconds to turn the printer on or off. The indicator light will illuminate when the device is powered on.
4.2 Connecting to Device
For mobile devices, enable Bluetooth on your phone and open the MARKLIFE app. The app will guide you through pairing with the P50 printer. For PC, connect the printer via USB cable and ensure the software recognizes the device.

The P50 printer connected via USB to a laptop and wirelessly to a smartphone, illustrating its compatibility with both mobile and PC devices for label design and printing.
4.3 Designing and Printing Labels
- Open the MARKLIFE app/software on your connected device.
- Select your desired label template or create a new design.
- Enter the text, images, or barcodes you wish to print.
- Preview the label to ensure accuracy.
- Tap the print button to send the job to the P50 printer.

Examples of labels printed by the P50, including a price tag for clothing and a product label for handmade soap.

Demonstration of P50 labels used for personalizing gift boxes and envelopes with 'Thank You' messages.

Examples of P50 labels applied to various containers for organizing toners, shampoos, pantry items like noodles, lentils, and spices.
4.4 Batch Printing
The P50 supports batch printing, allowing you to print multiple labels continuously. This feature is ideal for larger labeling tasks and can print up to 100 meters of labels on a single charge.

The P50 printer continuously printing a long roll of labels, highlighting its capability for batch printing up to 100 meters on a single charge.
5. Label Compatibility
The MARKLIFE P50 is compatible with thermal labels ranging in width from 0.59 inches (1.5 cm) to 2.24 inches (5.7 cm). It supports various fixed-size labels, including common dimensions like 1.57x1.18 inches (40x30mm) and 2x2 inches (50x50mm).
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An illustration of the P50 printer's label compartment, indicating compatibility with label widths from 0.59 to 2.24 inches (1.5 cm to 5.7 cm), suitable for various fixed-size labels.
6. Maintenance
6.1 Cleaning the Print Head
To maintain print quality, regularly clean the thermal print head. Use a soft, lint-free cloth lightly dampened with isopropyl alcohol. Gently wipe the print head surface. Ensure the printer is off and cool before cleaning.
6.2 Battery Care
To prolong battery life, avoid fully discharging the battery frequently. Store the printer in a cool, dry place when not in use for extended periods. Recharge the battery periodically if stored for a long time.
7. Troubleshooting
7.1 Printer Not Responding
- Check if the printer is powered on and fully charged.
- Ensure Bluetooth is enabled on your mobile device and the printer is paired correctly.
- If using PC, verify the USB connection and driver installation.
- Restart both the printer and your connected device.
7.2 Poor Print Quality
- Check if the label roll is inserted correctly and not jammed.
- Clean the print head as described in the Maintenance section.
- Ensure you are using compatible thermal labels.
- Adjust print density settings in the app/software if available.
7.3 Labels Not Feeding Correctly
- Open the cover and re-insert the label roll, ensuring it is aligned with the guides.
- Check for any obstructions in the label path.
- Ensure the label type and size are compatible with the printer.
8. Specifications
| Model Number | P50 |
| Brand | MARKLIFE |
| Manufacturer | Marklife |
| Dimensions | 11 x 4.4 x 8 cm |
| Weight | 570 g |
| Connectivity Technology | Bluetooth, USB |
| Print Technology | Thermal |
| Color | White |
| Printer Output | Monochrome |
| Included Components | Labels |
| Print Media | Labels |
| Max Paper Input Capacity | 50 (sheets/labels) |
| Print Speed (Monochrome) | 300 labels per minute |
| Compatible Devices | Mobile smart devices, PC (via USB) |
| Duplex Printing | No (Manual) |
| Battery | Built-in 1200mAh |
9. Warranty and Support
Specific warranty information and detailed support contacts are not available in the provided product data. Please refer to the product packaging, the manufacturer's official website, or your point of purchase for warranty details and customer support options.