1. Introduction
The SUNMI D2 Mini Printer is a compact yet powerful Android terminal designed for various business applications, particularly point-of-sale (POS) environments. It integrates a 10.1-inch touch display, a 4.3-inch customer display, and a 2-inch (58mm) thermal printer, offering a comprehensive solution for transactions and operations.
Equipped with a Quad-Core processor, 2GB RAM, and 8GB ROM, running on Android 8.1 OS, the D2 Mini ensures smooth performance. It supports Wi-Fi and Bluetooth connectivity, Micro SD expansion up to 64GB, and features multiple USB ports, a network port, and an RJ11 interface. Advanced features include NFC, a barcode module for QR code reading, and a camera, making it a versatile device for modern business needs.
Figure 1.1: The SUNMI D2 Mini, a high-performance desktop POS device.
2. Setup Guide
2.1 Unpacking and Initial Inspection
Carefully remove the SUNMI D2 Mini Printer from its packaging. Inspect all components for any signs of damage. Ensure all accessories listed in the packing list are present.
2.2 Connecting Power
- Locate the power adapter provided with your device.
- Connect the power adapter cable to the power port on the back of the D2 Mini.
- Plug the power adapter into a suitable electrical outlet.
- The device should automatically power on or can be powered on using the power button.
2.3 Network and Peripheral Connections
The D2 Mini offers various ports for connectivity. Refer to the diagram below for port identification.
Figure 2.1: Various peripheral interfaces on the SUNMI D2 Mini.
- USB Ports: Connect external devices such as barcode scanners, keyboards, or external storage. The device has multiple USB ports (USB x2, MicroUSB x1).
- LAN Port (RJ45): For wired network connection. Connect an Ethernet cable from your router or network switch to the RJ45 LAN port.
- Serial Port (RJ11): For connecting specific serial peripherals.
- Cash Box Port (RJ12): To connect a cash drawer.
- Audio Jack: For connecting headphones or external speakers.
- TF Card Slot: Insert a Micro SD card (up to 64GB) for expanded storage.
- SIM Card Slot: For 4G network connectivity (if applicable to your model).
2.4 Initial Software Configuration
Upon first boot, follow the on-screen prompts to configure basic settings such as language, time zone, and Wi-Fi connection. Ensure a stable internet connection for any necessary software updates.
3. Operating Instructions
3.1 Touch Screen and Customer Display
The D2 Mini features a 10.1-inch main touch screen for operator use and a 4.3-inch customer display. The main screen is capacitive and supports multi-touch gestures. The customer display can show transaction details, QR codes, or promotional content.
3.2 Integrated Thermal Printer
The device includes a 2-inch (58mm) integrated thermal printer. To load paper:
- Open the printer cover.
- Insert a 58mm thermal paper roll, ensuring the paper feeds from the bottom of the roll.
- Pull a small length of paper out and close the cover firmly.
- The printer is ready for use.
The printer supports a printing speed of 160mm/s and has a print head life of 50km. It includes a tearing mechanism for manual paper cuts.
3.3 Payment Functions
The D2 Mini supports various payment methods:
- QR Code Scanning: The professional QR code scanning module can recognize payment codes rapidly (e.g., in 0.03 seconds), enhancing transaction efficiency. This feature is typically available on scanning versions sold in specific regions.
- NFC / Membership Card Payment: The device is equipped with an NFC module, allowing for tap-to-pay functionality with compatible membership cards or NFC-enabled devices.
Figure 3.1: Payment options: QR code scanning and membership card tap.
3.4 Camera Functionality
The D2 Mini includes a wide-angle camera. This camera can be utilized for various functions, including facial recognition, depending on the software applications installed and regional availability. The "Member Cam" feature is specifically for the scanning version.
4. Maintenance
4.1 Cleaning the Device
To ensure optimal performance and longevity, regularly clean your D2 Mini Printer:
- Use a soft, lint-free cloth slightly dampened with water or a mild, non-abrasive cleaner to wipe the exterior surfaces, including the display screens.
- Avoid spraying liquids directly onto the device or into any openings.
- For the thermal print head, use a specialized thermal printer cleaning pen or isopropyl alcohol on a cotton swab. Ensure the device is powered off and cooled down before cleaning the print head.
4.2 Paper Roll Replacement
Replace the thermal paper roll when it runs out. Always use high-quality 58mm thermal paper to prevent damage to the print head and ensure clear prints.
4.3 Software Updates
Periodically check for and install software updates to ensure your device has the latest features, security patches, and performance improvements. Updates are typically managed through the device's system settings or your POS application.
5. Troubleshooting
5.1 Common Issues and Solutions
| Problem | Possible Cause | Solution |
|---|---|---|
| Device does not power on. | No power supply; faulty power adapter. | Ensure power adapter is securely connected and plugged into a working outlet. Try a different outlet. |
| Printer not printing. | No paper; paper jammed; print head issue; software error. | Check paper roll and replace if empty. Clear any paper jams. Restart the device and the printing application. Clean the print head. |
| No Wi-Fi connection. | Incorrect password; out of range; router issue. | Verify Wi-Fi password. Move closer to the router. Restart the router and the D2 Mini. |
| Touch screen unresponsive. | Software glitch; physical damage. | Restart the device. If issue persists, contact support. |
If you encounter issues not listed here or if the suggested solutions do not resolve the problem, please refer to the support section.
6. Specifications
The following table details the technical specifications of the SUNMI D2 Mini Printer:
Figure 6.1: Detailed technical specifications of the SUNMI D2 Mini.
| Feature | Specification |
|---|---|
| Operating System | Android 8.1, SUNMI OS |
| Processor | Quad-core Processor |
| Memory | 2GB RAM + 8GB ROM |
| Display | Main: 10.1" HD, 1280*800, 10 points capacitive touch screen Customer Display: 4.3" WVGA, 800*480, 300nits |
| Wi-Fi | 2.4GHz, Support IEEE 802.11 b/g/n |
| Bluetooth | Support BT 2.1/3.0/4.2, Support BLE |
| NFC | Support ISO14443 A, ISO14443 B, ISO 15693, MIFARE 1K/4K |
| Printer | Built-in 58mm thermal printer, Printing speed 160mm/s, Printing life 50km, Support till rolls of 60mm OD, Tearing paper manually |
| External Storage | Support MicroSD Card, Max 64GB |
| Connectivity | 4G network (only available to the printer version) |
| Ports | MicroUSB x1, USB x2, TF CARD x1, Audio jack x1, RJ11 Serial port x1, RJ45 LAN port x1, RJ12 Cash box port x1, Power port x1 |
| Dimensions (L*W*H) | 260*290*99mm |
| Weight | Scanning Version: 1.81kg, Printer Version: 1.94kg |
| Environment | Working Temperature: 0℃ - 40℃ Storage Temperature: -20℃ - 60℃ |
7. Warranty and Support
7.1 Warranty Information
Specific warranty terms and conditions for the SUNMI D2 Mini Printer are provided by the manufacturer or your point of purchase. Please refer to the warranty card included with your product or contact your vendor for detailed information regarding warranty coverage, duration, and claims procedures.
7.2 Customer Support
For technical assistance, troubleshooting beyond this manual, or service requests, please contact SUNMI customer support or your authorized distributor. Contact information can typically be found on the official SUNMI website or through your product vendor.
Online Resources: For the latest drivers, software, and FAQs, visit the official SUNMI support website.
