1. Introduction
This manual provides detailed instructions for the installation, operation, and maintenance of your Xprinter XP-350B or XP-350BM Direct Thermal Barcode Printer. Please read this manual thoroughly before using the printer to ensure proper function and longevity of the device. The Xprinter XP-350B/XP-350BM is a high-speed thermal barcode printer designed for various label printing applications.

2. Setup Guide
2.1 Unpacking
Carefully remove the printer and all accessories from the packaging. Verify that all components are present:
- Xprinter XP-350B/XP-350BM Printer
- Power Adapter
- USB Cable
- Driver CD (or download link)
- Paper Roll Holder

2.2 Connecting the Printer
Connect the power adapter to the printer and then to a power outlet. Connect the printer to your computer or network using one of the available interfaces:
- USB: Connect the USB cable from the printer to your computer.
- Serial: Connect the serial cable (if applicable) from the printer to your computer.
- LAN (XP-350BM only): Connect an Ethernet cable from the printer to your network router or switch.

2.3 Driver Installation
Install the printer drivers on your operating system (Windows, Android, or iOS). The drivers are typically provided on a CD or can be downloaded from the manufacturer's website. Follow the on-screen instructions for installation.
2.4 Loading Paper
The printer supports easy paper loading with an adjustable paper guide. Follow these steps:
- Open the printer cover.
- Place the label roll onto the paper roll holder.
- Feed the labels through the adjustable paper guide until they emerge from the print head area.
- Adjust the paper guides to fit the width of your labels.
- Close the printer cover.

The printer supports a maximum label roll diameter of 100mm.
3. Operating Instructions
3.1 Basic Printing
Once the printer is connected and drivers are installed, you can send print jobs from your application. Ensure your label design software is configured to use the Xprinter XP-350B/XP-350BM and matches the label dimensions.
3.2 Printing Speed
The printer is capable of high-speed printing, up to 152mm/s, ensuring efficient output for your labeling needs.

3.3 Supported Barcodes and Emulation
The printer supports various 1D and 2D barcode formats, including PDF 417, DataMatrix, and QR Code. It uses TSPL and ESC/POS emulation for compatibility with different printing commands.
4. Maintenance
4.1 Cleaning the Print Head
Regularly clean the print head to ensure optimal print quality and extend its lifespan. Use a soft, lint-free cloth moistened with isopropyl alcohol. Ensure the printer is turned off and cooled down before cleaning.
4.2 Overheat Protection
The printer features integrated overheat protection to prevent damage from prolonged use at high temperatures. If the printer overheats, it may temporarily pause operation. Allow it to cool down before resuming.
4.3 Print Head Life
The print head is designed for a life of 100KM, indicating its durability under normal operating conditions and proper maintenance.
5. Troubleshooting
This section addresses common issues you might encounter with your Xprinter. For more complex problems, please contact technical support.
5.1 Common Issues
- No Power: Ensure the power adapter is securely connected to both the printer and a working power outlet.
- No Printing: Check if the printer is turned on, connected correctly, and if the drivers are installed. Verify that paper is loaded correctly and not jammed.
- Poor Print Quality: Clean the print head. Ensure you are using high-quality thermal labels.
- Paper Jam: Turn off the printer, open the cover, and carefully remove any jammed paper. Ensure the paper guides are correctly adjusted for the label width.
- Connectivity Issues: For USB, try a different port or cable. For LAN, check network cables and printer IP settings.
6. Specifications
| Feature | Specification |
|---|---|
| Model | XP-350B / XP-350BM |
| Printing Method | Thermal Printing |
| Max Print Width | 76 mm |
| Media Width | 20 ~ 82 mm |
| Max Paper Size | 80mm |
| Black Print Speed | 152mm(6")/s (Max.) |
| Max. Resolution | 203dpi |
| Interface Type (XP-350B) | USB+Serial |
| Interface Type (XP-350BM) | USB+Serial+LAN |
| Driver | Windows/Android/IOS |
| Emulation | TSPL, ESC/POS |
| 2D Barcode Support | PDF 417, DataMatrix, QR Code |
| Label Length | 10 ~ 100mm |
| Label Roll Capacity | 100 mm |
| Rotation | 0°, 90°, 180°, 270° |
| Print Head Life | 100KM |
| Gross Weight | 1.44kg |
| Certifications | CE, FCC |
7. User Tips
Based on user feedback, here are some tips for getting the most out of your Xprinter:
- Ease of Use: Users frequently commend the printer for being simple to set up and use.
- Quality Output: The printer consistently delivers very good quality prints.
- Responsive Support: If you encounter any issues, the seller's support is noted for being fast and helpful.

8. Warranty and Support
8.1 Warranty
The Xprinter XP-350B/XP-350BM comes with a 1-Year warranty from the date of purchase. This warranty covers manufacturing defects under normal use. Please retain your proof of purchase for warranty claims.
8.2 Technical Support
For technical assistance, troubleshooting, or any questions regarding your printer, please contact Xprinter's customer support. They offer call center and online technical support.
You may also reach out via the following channels:
- WhatsApp: +86 18711341578
- WeChat: +86 18711341578
- Email: 304276083@qq.com
9. Certifications
The Xprinter XP-350B/XP-350BM printer complies with various international standards and holds the following certifications:
- CE
- FCC
- RoHS
- ISO 9001
- CB

10. Quality Control
Xprinter maintains rigorous quality control processes to ensure product reliability and performance. These include:
- Anti-interference testing
- Vertical drop testing
- Electrostatic testing
- Lightning surge testing
- Performance testing
- SMT (Surface Mount Technology) inspection
- TPH (Thermal Print Head) checking






