1. Introduction
The Winpal WP300 is a high-speed thermal receipt printer designed for various Point of Sale (POS) environments such as restaurants, kitchens, retail stores, and more. It features an 80mm paper width, an auto-cutter, and multiple connectivity options including USB, LAN, and Serial interfaces, ensuring versatile integration into existing systems. This manual provides essential information for setting up, operating, maintaining, and troubleshooting your WP300 printer.
2. Key Features
- Wall-Mounted Design: Supports wall-mounting for flexible placement in various environments.
- Auto Cutter Function: Automatically cuts receipts after printing for convenience and efficiency.
- IAP Online Update: Supports In-Application Programming for online firmware updates.
- Cash Drawer Driver Support: Compatible with cash drawer systems.
- IP Modification: Supports IP modification across network segments for easy network configuration.
- Flexible Paper: Uses 80mm thermal paper.
- QR Code & PDF417 Support: Capable of printing various 2D barcodes.
- Low Noise, High-Speed Printing: Ensures fast and quiet operation.
- NVLOGO Download: Allows for custom logo embedding.
- Rich Interfaces: USB, Serial, and LAN connectivity.
- Multilingual Support: Supports multiple languages and code pages.
3. Specifications
| Attribute | Value |
|---|---|
| Model | WP300 |
| Printer Width | 80mm |
| Printing Speed | 300mm/s |
| Interface Type | USB+Serial+LAN |
| Printing Paper | 79.5±0.5mm×φ80mm |
| Print Command | ESC/POS |
| Weight | 1.0 KG |
| Dimensions (D*W*H) | 190.16mm * 140mm * 134.64mm |
| Drivers | Windows / Linux / Android / iOS |
| Origin | Mainland China |
| Certification | FCC, CE, RoHS, CCC, BIS(ISI) |
| Printer Head Life | 150KM |
| Cutter Life | 1.5 million cuts |
| Application | Receipt printers, Specialty store, Cosmetics shop, Hotel, Kitchen, Retail |
| Battery Included | Yes |
4. Package Contents
Verify that all items are present in the package:
- Winpal WP300 Thermal Receipt Printer Unit
- Power Adapter
- Power Cable (region-specific)
- USB Cable
- Serial Cable (DB9)
- User Manual
- Driver CD
- Thermal Paper Roll

5. Setup Instructions
5.1. Paper Loading
- Open the printer cover by pressing the release button or lifting the cover.
- Insert the thermal paper roll into the paper compartment, ensuring the paper feeds from the bottom and the leading edge extends out of the printer.
- Close the printer cover firmly until it clicks into place. Ensure the paper is taut and aligned.

5.2. Connecting Interfaces
The WP300 printer supports USB, Serial (RS232), and LAN (Ethernet) connections.
- USB Connection: Connect the printer to your computer using the provided USB cable.
- Serial Connection: Connect the printer to your computer or POS system using the provided Serial (DB9) cable.
- LAN Connection: Connect the printer to your network router or switch using an Ethernet cable. Ensure proper network configuration for IP communication.

5.3. Driver Installation
Install the appropriate drivers for your operating system (Windows, Linux, Android, iOS) from the provided CD or the manufacturer's website. Follow the on-screen instructions for installation.
6. Operating Instructions
6.1. Power On/Off
Use the power switch located on the side or front of the printer to turn it on or off. The power indicator light will illuminate when the printer is on.
6.2. Self-Test Print
To perform a self-test and check the printer's basic functionality and configuration:
- Ensure the printer is powered off and paper is loaded.
- Press and hold the FEED button.
- While holding the FEED button, turn on the printer.
- Release the FEED button after the printer starts printing the self-test page.

6.3. Basic Printing
Once the printer is connected and drivers are installed, you can send print jobs from your application. The printer will automatically print the receipt and use its auto-cutter function.
6.4. Queueing Function
The printer supports a queueing function, allowing it to manage and print multiple orders in an orderly sequence, which is particularly useful in busy kitchen or restaurant environments.

6.5. NV LOGO Download and Image Printing
The printer allows you to download and store non-volatile (NV) logos or images for printing on receipts. Refer to the driver software documentation for detailed instructions on how to upload and configure custom logos.

6.6. IAP Online Upgrade
The printer supports In-Application Programming (IAP) for online firmware upgrades. This allows you to update the printer's software to the latest version, ensuring optimal performance and access to new features. Consult the manufacturer's support resources for instructions on performing an IAP upgrade.

7. Maintenance
7.1. Cleaning the Printer
- Exterior: Wipe the exterior of the printer with a soft, damp cloth. Do not use harsh chemicals or abrasive cleaners.
- Print Head: Regularly clean the thermal print head to ensure clear print quality. Use a cotton swab lightly moistened with isopropyl alcohol. Gently wipe the print head surface. Allow it to dry completely before use.
7.2. Replacing Paper Roll
Follow the steps in Section 5.1 (Paper Loading) to replace an empty paper roll with a new one.
8. Troubleshooting
- No Power: Ensure the power adapter is securely connected to both the printer and a working power outlet. Check the power switch.
- No Print: Verify that paper is loaded correctly and the printer cover is closed. Check cable connections (USB, Serial, LAN). Ensure drivers are installed and the printer is selected as the default printer in your software.
- Paper Jam: Open the printer cover, carefully remove any jammed paper, and reload the paper roll as per Section 5.1.
- Cutter Malfunction: If the auto-cutter is not working correctly, open the printer cover. Press the FEED button or restart the printer to reset the cutter. If the issue persists, manually turn the gear to reset the cutter mechanism.

8.1. User Tips
- For optimal performance, ensure your printer's firmware is up-to-date using the IAP online upgrade feature.
- If you encounter persistent issues, refer to the detailed user manual provided on the driver CD or contact customer support.
9. Warranty and Support
The Winpal WP300 Thermal Receipt Printer comes with a 1-year warranty. For after-sales service, including online checks and replacements, please refer to the official support channels.
Contact Information:
- WhatsApp: +86 13191616332
- Email: yierguoji01@163.com
10. Certifications
The Winpal WP300 printer is certified to meet various international standards, ensuring quality and safety:
- CE
- FCC
- RoHS
- CCC
- BIS(ISI)






