SUNMI Sunmi NT311
SUNMI NT311 Thermal Receipt Printer User Manual
Model: Sunmi NT311
Introducción
This user manual provides detailed instructions for the installation, operation, and maintenance of your SUNMI NT311 Thermal Receipt Printer. Designed for efficiency and reliability, this printer is ideal for various point-of-sale environments. Please read this manual thoroughly before using the printer to ensure proper functionality and to prevent damage.
Información de seguridad
- Always use the original power adapter provided with the printer.
- No exponga la impresora al agua, la humedad o temperaturas extremas.
- Evite colocar la impresora bajo la luz solar directa o cerca de fuentes de calor.
- No intente desmontar ni reparar la impresora usted mismo. Contacte con personal de servicio técnico cualificado para obtener ayuda.
- Asegúrese de que haya una ventilación adecuada alrededor de la impresora durante su funcionamiento.
Producto terminadoview
The SUNMI NT311 is a high-performance direct thermal receipt printer featuring multiple connectivity options and automatic paper cutting. Its compact design makes it suitable for various business settings.
Características principales:
- Direct thermal printing method.
- Maximum print width: 80 mm.
- Connectivity: IEEE 802.11 b/g/n 2.4G Wi-Fi, BT4.2 BLE 2.4 GHz, USB TYPE-C USB2.0, Ethernet RJ45 (max. 100 Mbps).
- Cash Drawer Port: RJ12 24V/1A.
- Dimensiones: 130 x 130 x 130 mm.
- Supports ESC/POS command set.
- Nivel de protección: IP52.
- Memory: 64 MB RAM, 256 MB Flash.
- Automatic Paper Cutting: Full Cutting/Half Cutting Mode.
Componentes de la impresora:



Guía de configuración
1. Desembalaje
Retire con cuidado la impresora y todos los accesorios del embalaje. Compruebe que todos los componentes estén presentes:
- SUNMI NT311 Printer
- Adaptador de corriente
- Cable USB (si está incluido)
- Guía de inicio rápido
2. Conexión de energía
- Connect the power adapter to the DC 24V/2.5A power input port on the back of the printer.
- Conecte el adaptador de corriente a una toma de corriente adecuada.
- The power indicator light on the printer should illuminate.
3. Carga de papel térmico
- Open the printer cover by pushing the cover open lever.
- Insert a roll of 80mm thermal paper into the paper compartment, ensuring the paper feeds from the bottom of the roll towards the front of the printer.
- Pull a small amount of paper out past the cutting blade.
- Cierre la cubierta de la impresora firmemente hasta que encaje en su lugar.
4. Conexión a dispositivos
Conexión USB:
Connect the printer to your computer or POS system using the provided USB TYPE-C USB2.0 cable.
Conexión Ethernet (LAN):
Connect an Ethernet cable from your network router or switch to the RJ45 LAN port on the printer. The printer supports speeds up to 100 Mbps.
Conexión Bluetooth:
- Ensure Bluetooth is enabled on your host device (e.g., smartphone, tablet, computer).
- Buscar available Bluetooth devices. The printer will typically appear as "SUNMI NT311" or a similar name.
- Select the printer and pair it. You may be prompted for a PIN (default is usually "0000" or "1234").
Conexión del cajón de efectivo:
Connect your cash drawer to the RJ12 24V/1A port on the printer. The printer will trigger the cash drawer when a print command is sent.
Instrucciones de funcionamiento
Impresión básica:
Once the printer is connected and drivers (if required for your operating system, e.g., Windows) are installed, you can send print commands from your application. The printer will automatically print and cut the receipt.
Luces indicadoras:
- Indicador de encendido: Indica el estado de energía de la impresora.
- Paper Exhaustion Sensor: Alerts when paper is low or out.
- Anomality Indicator: Indicates an error condition (e.g., cover open, print head overheat).
- Indicador de red: Shows network connectivity status (for Ethernet/Wi-Fi models).
Mantenimiento
Limpieza de la impresora:
La limpieza regular ayuda a mantener la calidad de impresión y prolonga la vida útil de la impresora.
- Apague la impresora y desconecte el cable de alimentación.
- Abra la cubierta de la impresora.
- Utilice un paño suave y sin pelusaampened with isopropyl alcohol to gently clean the thermal print head (the dark strip inside the printer). Allow it to dry completely before closing the cover.
- Clean the paper path and rollers with a dry, soft cloth to remove any paper dust.
- Wipe the exterior of the printer with a slightly damp paño.
Precaución: Do not touch the print head immediately after printing as it may be hot. Avoid using abrasive cleaners or solvents.
Replacing Paper Roll:
When the paper exhaustion sensor indicates low paper, or when the print quality degrades due to the end of the roll, replace the paper following the steps in the "Loading Thermal Paper" section.
Solución de problemas
| Problema | Posible causa | Solución |
|---|---|---|
| La impresora no se enciende. | Cable de alimentación no conectado; toma de corriente defectuosa. | Asegúrese de que el cable de alimentación esté bien conectado. Pruebe con otra toma de corriente. |
| No hay salida de impresión. | Paper out; printer cover open; incorrect driver/connection. | Load new paper. Close cover firmly. Check driver installation and connection (USB/Ethernet/Bluetooth). |
| Mala calidad de impresión. | Thermal head dirty; low quality paper; paper loaded incorrectly. | Clean the thermal print head. Use high-quality thermal paper. Ensure paper is loaded correctly. |
| Atasco de papel. | Papel cargado incorrectamente; objeto extraño en la ruta del papel. | Open cover, remove jammed paper carefully. Reload paper correctly. Check for obstructions. |
| La impresora no se conecta mediante Bluetooth. | Bluetooth not enabled on host; incorrect pairing. | Ensure Bluetooth is on and discoverable on host device. Re-pair the printer. Check PIN. |
Presupuesto
| Característica | Descripción |
|---|---|
| Marca | Sunmi-san |
| Número de modelo | Sunmi NT311 |
| Método de impresión | Térmica directa |
| Max ancho de impresión | 80 milímetros |
| Tecnología de conectividad | Bluetooth 2.4 GHz, Ethernet (RJ45), USB (Type-C USB2.0) |
| Conectividad inalámbrica | IEEE 802.11 b/g/n 2.4G, BT4.2 BLE 2.4 GHz |
| Puerto del cajón de efectivo | RJ12 24V/1A |
| Dimensiones (L x An x Al) | 130 x 130 x 130 mm |
| Nivel de protección | IP52 |
| Memoria | 64 MB de RAM, 256 MB de Flash |
| Grosor del papel | 0.075 - 0.008 mm |
| Velocidad de impresión | 250 mm/s |
| Automatic Paper Cutting | Full Cutting / Half Cutting Mode |
| Sistemas operativos compatibles | Ventanas, Android |
| Consumo de energía | 3 vatios |
Garantía y soporte
For warranty information, please refer to the documentation provided at the time of purchase or contact your retailer/seller directly. SUNMI provides technical support for its products.
For further assistance, troubleshooting, or to inquire about service, please visit the official SUNMI support webSitio web o contacte con el departamento de atención al cliente. Tenga a mano el recibo de compra y el número de serie del producto cuando necesite ayuda.
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