1. Introduction
1.1 Product Overview
The MARKLIFE P50 is a portable, thermal Bluetooth label maker designed for a wide range of labeling needs, from home organization to small business applications. It utilizes thermal printing technology, eliminating the need for ink or toner. The device connects wirelessly via Bluetooth to your smartphone or tablet, allowing you to design and print labels using the dedicated Marklife app.

Image: MARKLIFE P50 Label Maker Machine with a sample label.

Image: The MARKLIFE P50 is portable and lightweight.
1.2 Package Contents
Please check the box for the following items:
- MARKLIFE P50 Label Maker Machine
- 1 Roll of Label Tape (pre-installed or included separately)
- USB-C Charging Cable
- Battery Pack (pre-installed)
- User Manual (this document)
2. Setup
2.1 Charging the Device
Before first use, ensure the P50 label maker is fully charged. Connect the included USB-C charging cable to the device's charging port and plug the other end into a compatible USB power adapter (not included). The charging indicator light will provide feedback on the charging status.
2.2 Loading Label Paper
The P50 supports label paper widths from 0.47 inches to 1.96 inches. To load the label roll:
- Open the label compartment cover.
- Insert the label roll with the printing side facing up, ensuring the labels feed smoothly through the printer slot.
- Close the compartment cover securely.

Image: Correct and incorrect label paper loading.
2.3 App Installation
The MARKLIFE P50 operates exclusively with the "Marklife" mobile application. Download the app from your device's app store:

Image: Wireless connection to the Marklife App.
2.4 Bluetooth Connection
To connect your P50 label maker to the Marklife app:
- Ensure Bluetooth is enabled on your smartphone or tablet.
- Power on the P50 label maker by long-pressing its power button.
- Open the Marklife app. Do not attempt to pair the device through your phone's Bluetooth settings.
- Within the Marklife app, navigate to the connection interface (often indicated by a Bluetooth icon or "My device" section).
- Select "P50" from the list of available devices to establish the connection. The app will indicate a successful connection.

Image: Easy steps to connect via Bluetooth.
3. Operating Instructions
3.1 Creating Labels with the Marklife App
The Marklife app provides a comprehensive suite of tools for designing your labels:
- Text: Add custom text with various fonts (25+ available), sizes, and styles (bold, italic, underline).
- Images: Insert pictures from your device or choose from a library of 1000+ emojis and 20+ borders.
- Barcodes & QR Codes: Generate and print standard barcodes and QR codes for product tracking or information sharing.
- Excel Input: Support for importing data from Excel files for batch printing.
- Date & Serial Numbers: Automatically insert current dates or sequential serial numbers, useful for inventory or expiry dates.

Image: Marklife App interface and label design capabilities.
3.2 Printing Labels
Once your label design is complete in the Marklife app:
- Review your design on the app screen to ensure accuracy.
- Tap the "Print" button within the app.
- The P50 label maker will automatically print your label.
- Tear off the printed label along the serrated edge.
The P50 is versatile and can be used for various label types:

Image: MARKLIFE P50 printing a label.

Image: Examples of labels created with the P50.
4. Maintenance
4.1 Cleaning the Print Head
To ensure optimal print quality, periodically clean the thermal print head. Use a soft, lint-free cloth lightly dampened with rubbing alcohol. Gently wipe the print head surface. Allow it to dry completely before closing the cover or using the printer.
4.2 Storage
Store the MARKLIFE P50 in a cool, dry place away from direct sunlight and extreme temperatures. When not in use for extended periods, ensure the device is powered off. Remove any label rolls if storing for a very long time to prevent dust accumulation.
5. Troubleshooting
5.1 Connection Problems
- Cannot connect via Bluetooth: Remember to connect through the Marklife app, not your phone's native Bluetooth settings. Ensure the printer is powered on and within range.
- App not finding printer: Close and reopen the Marklife app. Restart the P50 label maker. Ensure your phone's Bluetooth is active.
5.2 Print Quality Issues
- Faint or incomplete print: Check if the label roll is loaded correctly with the printing side facing up. Ensure the label roll is not depleted. Clean the print head as described in the Maintenance section. Try using the "Bold" print option in the app if available, as this can improve saturation.
- Misaligned labels: The Marklife app typically auto-aligns labels. If misalignment occurs, try restarting the app and the printer. Ensure the label roll is seated correctly and not skewed.
5.3 Other Issues
- Device not powering on: Ensure the device is fully charged. If the battery is low, connect it to a power source using the USB-C cable.
- App functionality issues: Ensure your Marklife app is updated to the latest version. If problems persist, try reinstalling the app.
6. Specifications
| Feature | Detail |
|---|---|
| Brand | MARKLIFE |
| Model Name | P50 |
| Item Model Number | p50 |
| Connectivity Technology | Bluetooth |
| Printing Technology | Thermal |
| Printer Output | Monochrome |
| Controller Type | iOS, Android |
| Control Method | App |
| Maximum Media Size | 4 x 6 inches |
| Print Media | Labels |
| Max Input Sheet Capacity | 1 |
| Compatible Devices | Laptops (Primarily designed for mobile app use) |
| Duplex Printing | No (Simplex) |
| Additional Printer Functions | Print Only |
| UPC | 744351657741 |
| Memory Storage Capacity | 64 KB |
| Package Dimensions | 5.47 x 4.06 x 2.64 inches |
| Item Weight | 7.2 ounces (205 Grams) |
| Batteries | 1 Lithium Metal battery (included) |
| Date First Available | June 23, 2022 |
| Color | White |
| Max Print Speed (Monochrome) | 20 mm/s |
7. Warranty and Support
MARKLIFE is committed to providing high-quality products and excellent customer service. If you encounter any issues with your P50 Label Maker Machine or have questions regarding its operation, please refer to the following resources:
- Official User Guide (PDF): For a downloadable version of the user guide, please visit: MARKLIFE P50 User Guide PDF
- After-Sales Service: For direct assistance, please contact the MARKLIFE after-sales team. Contact details are typically provided on the product packaging or through the Marklife app's support section.
The manufacturer provides support for product-related inquiries and troubleshooting. Please retain your proof of purchase for warranty claims.





