1. Introduction
This manual provides comprehensive instructions for the installation, operation, and maintenance of the 3nStar RPT006 Thermal Receipt Printer, specifically the USB+Ethernet+Wi-Fi model. Please read this manual thoroughly before using the printer to ensure proper functionality and to prevent damage.
2. Safety Information
- Ensure the printer is connected to a grounded power outlet.
- Do not expose the printer to water or excessive humidity.
- Avoid placing the printer in direct sunlight or near heat sources.
- Use only the power adapter supplied with the printer.
- Do not attempt to disassemble or repair the printer yourself. Contact qualified service personnel.
- Keep out of reach of children.
3. Package Contents
Verify that all items are present in the package:
- 3nStar RPT006 Thermal Receipt Printer
- Power Cord
- AC Adapter
- USB Cable
- USB Type-C to Type-A Adapter
- Sample Roll of Thermal Paper
- USB Drive (containing Drivers, Manuals, and Tutorials)
4. Product Overview
Familiarize yourself with the printer's components and indicators.
4.1 Front View

Figure 1: Front view of the 3nStar RPT006 printer, showing the paper output slot and control panel with FEED, PAPER, ERROR, and POWER indicators.
4.2 Top Angled View

Figure 2: Angled top-front view of the 3nStar RPT006 printer, highlighting the compact design and control panel.
4.3 Side View

Figure 3: Side view of the 3nStar RPT006 printer, illustrating its compact form factor.
4.4 Rear Angled View

Figure 4: Angled rear-top view of the 3nStar RPT006 printer, showing the power switch and connectivity ports (not clearly visible but implied location).
4.5 Control Panel Indicators
- FEED Button: Press to advance paper.
- PAPER Indicator: Lights up when paper is present, flashes when paper is low, off when no paper.
- ERROR Indicator: Lights up or flashes to indicate various errors (e.g., paper jam, print head overheat).
- POWER Indicator: Lights up when the printer is powered on.
5. Setup
5.1 Unpacking and Placement
- Carefully remove the printer and all accessories from the packaging.
- Place the printer on a stable, flat surface. Ensure adequate ventilation around the printer.
5.2 Connecting Power
- Connect the AC adapter to the printer's power input port.
- Connect the power cord to the AC adapter.
- Plug the power cord into a grounded electrical outlet.
- Ensure the printer's power switch (located at the rear/side) is in the OFF position before connecting power.
5.3 Loading Thermal Paper

Figure 5: Printer with the top cover open, illustrating the drop-in paper loading area.
- Open the printer's top cover by pressing the cover release latch (if present) or lifting the cover directly.
- Insert a new roll of 80mm thermal paper into the paper compartment. Ensure the paper feeds from the bottom of the roll and the leading edge is straight.
- Pull a small amount of paper past the cutter mechanism.
- Close the top cover firmly until it latches. The printer will automatically feed the paper to the correct position.
5.4 Interface Connections (USB, Ethernet, Wi-Fi)
The RPT006 (USB+ETH+WiFi) model offers multiple connectivity options:
- USB Connection: Connect the provided USB cable from the printer's USB port to an available USB port on your computer or POS terminal.
- Ethernet (LAN) Connection: Connect a standard Ethernet cable from the printer's Ethernet port to your network router or switch.
- Wi-Fi Connection: For Wi-Fi setup, refer to the detailed instructions on the included USB drive or the manufacturer's website for specific configuration steps, as this typically involves utility software.
6. Operating Instructions
6.1 Power On/Off
- Power On: Flip the power switch (usually located at the rear or side) to the ON position. The POWER indicator light will illuminate.
- Power Off: Flip the power switch to the OFF position. The POWER indicator light will turn off.
6.2 Driver Installation
Drivers are required for the printer to communicate with your operating system (Windows, Linux, OPOS). The necessary drivers are provided on the included USB drive.
- Insert the USB drive into your computer.
- Locate and run the appropriate driver installer for your operating system.
- Follow the on-screen instructions to complete the driver installation.
- For Wi-Fi configuration, refer to the specific utility software provided on the USB drive.
6.3 Printing a Test Page
After driver installation, you can print a test page to confirm proper setup:
- For Windows: Go to "Devices and Printers," right-click on the 3nStar RPT006 printer, select "Printer properties," and then click "Print Test Page."
- Alternatively, you can often print a self-test page by holding down the FEED button while turning on the printer (consult the USB drive manual for exact procedure).
7. Maintenance
7.1 Cleaning the Printer
- Turn off the printer and unplug the power cord before cleaning.
- Use a soft, dry cloth to wipe the exterior of the printer.
- To clean the thermal print head, use a cotton swab lightly dampened with isopropyl alcohol. Gently wipe the print head surface. Allow it to dry completely before powering on.
- Regularly remove paper dust and debris from the paper path.
7.2 Paper Replacement
When the PAPER indicator flashes or no paper is detected, replace the thermal paper roll as described in Section 5.3.
8. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Printer does not power on. | Power cord not connected; power outlet faulty; power switch off. | Check power connections; try a different outlet; ensure power switch is ON. |
| No paper feeding. | No paper roll; paper incorrectly loaded; paper jam. | Load new paper roll; re-load paper correctly (refer to 5.3); clear any paper jam. |
| Print output is blank or faded. | Incorrect paper type (not thermal); thermal paper loaded upside down; print head dirty. | Ensure thermal paper is used; re-load paper with thermal side facing print head; clean print head (refer to 7.1). |
| Printer not recognized by computer. | USB cable disconnected; incorrect drivers installed; Wi-Fi not configured. | Check USB cable connection; install correct drivers (refer to 6.2); configure Wi-Fi using utility software. |
| ERROR indicator is lit or flashing. | General error; paper jam; print head overheat. | Refer to the detailed error codes in the full manual on the USB drive. Often requires clearing paper path or allowing printer to cool. |
9. Specifications
| Feature | Detail |
|---|---|
| Model Name | RPT006 |
| Printing Technology | Direct Thermal |
| Print Speed (Monochrome) | Up to 260 mm/s |
| Print Resolution | 203 DPI (8 dots/mm) |
| Paper Width | 80 mm |
| Connectivity | USB, Ethernet (LAN), Wi-Fi |
| Auto-Cutter Life | 1.5 million cuts |
| Print Head Life | 150 km |
| Compatible OS | Windows, Linux, OPOS |
| Power Consumption | 50 Watts (On-mode) |
| Product Dimensions (DxWxH) | 7.28" x 3.35" x 3.35" (18.5 x 8.5 x 8.5 cm) |
| Item Weight | 3.65 pounds (1.66 kg) |
| UPC | 850013523085 |
10. Warranty and Support
For warranty information, technical support, or service inquiries, please refer to the documentation provided on the included USB drive or visit the official 3nStar website. Keep your purchase receipt as proof of purchase for warranty claims.





