The SUNMI NT320 Thermal Receipt Printer is a direct thermal printing device engineered for efficient point-of-sale and business operations. Featuring a 76mm print width supporting 80mm media, a 203 dpi resolution, and a printing speed of 150 mm/s, it delivers clear receipts and transactional documents reliably. Equipped with an automatic cutter, gap sensor, and ample memory capacity consisting of 128MB RAM and 256MB storage, this printer handles daily workloads smoothly. Versatile connectivity options including Ethernet, USB-C, Bluetooth, Wi-Fi, and an RJ12 cash drawer port ensure seamless integration into existing business environments.
Advantages
The SUNMI NT320 provides reliable direct thermal printing without requiring ink or ribbons, which helps reduce ongoing operational maintenance. Its high printing speed of 150 mm/s ensures quick transaction processing during peak business hours. The inclusion of an automatic cutter streamlines workflow by cleanly separating each printed receipt, while the integrated gap sensor ensures accurate media alignment. Furthermore, multiple connectivity interfaces such as Wi-Fi, Bluetooth, Ethernet, and USB-C offer flexible deployment options across various counter setups and network configurations.
Suitable for
- Printing customer receipts at retail checkout counters
- Generating order tickets in hospitality and restaurant environments
- Issuing service tickets and tokens in customer service areas
- Connecting to cash drawers via the dedicated RJ12 port for complete POS setups
When it may not be suitable
This device may not be suitable for printing long-lasting archival documents, as direct thermal prints can fade over time when exposed to heat or direct sunlight. Additionally, it is designed specifically for receipt and ticket printing on 80mm thermal paper rolls and cannot handle standard office paper or multi-part forms.
Key specifications
- Direct thermal printing technology
- 76mm maximum print width
- 80mm media width support
- 203 dpi print resolution
- 150 mm/s print speed
- Automatic cutter and gap sensor
- 128MB RAM and 256MB memory
- Ethernet, USB-C, Bluetooth, and Wi-Fi connectivity
- RJ12 cash drawer interface
How to use
To begin using the SUNMI NT320, place the printer on a stable surface near a power outlet and your host device. Open the paper compartment cover and insert an 80mm thermal paper roll with the correct orientation, ensuring the edge extends slightly past the cutter before closing the cover. Connect the printer to your power source and choose your preferred connection method, such as Ethernet, USB-C, Bluetooth, or Wi-Fi, to pair it with your point-of-sale terminal or computer. Install the necessary drivers or configure network settings as required by your operating system. Once configured, send print jobs directly from your application, and the automatic cutter will separate each receipt upon completion.
What to consider before purchase
- Ensure your software is compatible with SUNMI thermal receipt printers and available connection interfaces
- Verify that your workspace has access to the appropriate power source and network infrastructure for Wi-Fi or Ethernet setup
- Confirm that your daily printing volume aligns with a print speed of 150 mm/s
- Check if you require a cash drawer connection via the RJ12 port
Usage recommendations
Always use high-quality 80mm thermal paper rolls to ensure optimal print clarity and to prevent premature wear on the thermal print head and automatic cutter mechanism. Periodically clean the print head and sensor areas with a dust-free cloth or isopropyl alcohol wipe to maintain consistent print quality and reliable gap detection.
