1. Introduzione
Grazie per l'acquistoasing the NIIMBOT K3/K3_W Smart Label Printer. This thermal printer produces images by heating the label paper and does not require ink or carbon powder. Our label printers are designed to last and come with an after-sales service guarantee. Before use, please take a few minutes to read the operating and care instructions.
1.1 Contenuto della confezione
The package for your Niimbot K3/K3W Smart Label Printer includes the following items:
- Stampante per etichette intelligenti x1
- Rotolo di carta per etichette x1
- Manuale del prodotto x1
- Cavo dati USB x1
- Cavo di alimentazione x1
- Power Supply Unit x1

Figura 1: Contenuto della confezione
2. Safety Notice and Precautions
Before using the printer, read the following precautions to avoid personal injury or damage to the device.
2.1 Precauzioni
- Place this product on a flat, stable surface.
- If you notice any unusual odors, heat, smoke, changes in color, deformation, or any other issues while using this product, immediately unplug the power cord and discontinue use.
- Do not disassemble this product. For inspections or repairs, please contact the official customer service.
- Do not drop, throw, hit, or handle this product improperly.
- Do not allow the printer to come into contact with water.
- Before cleaning this product, make sure the power is off and remove the power cord from the socket to avoid electric shock or fire.
- Do not use paint thinner, benzene, alcohol, or any other organic solvents to clean this product as it may damage the surface. Use a soft, dry cloth instead.
- Always use official, genuine NIIMBOT labels. This product warranty does not cover any malfunctions or damage caused by third-party labels.
- Do not expose label rolls to direct sunlight, high temperatures, high humidity or dust. Store them in a cool, dark place.
2.2 Avvertenze di sicurezza
- The printhead generates heat. To avoid the risk of burns, do not touch the printhead or the surrounding components during or immediately after printing.
- Do not touch the printhead and connectors, as this may generate static electricity and damage the printhead.
- The tearing device has a sharp edge. To avoid injury, do not touch the tearing device with your fingers or other body parts.
3. Prodotto finitoview
3.1 Funzioni del prodotto

Figure 2: External Components

Figura 3: Componenti interni
3.2 Funzioni dei pulsanti
| Nome | Azione | Descrizione della funzione |
|---|---|---|
| Pulsante di accensione | Attiva/disattiva | Turn device on or off |
| Compartment release button | Premere verso il basso | Open paper compartment cover |
| Pulsante di alimentazione della carta | Pressione breve | Standby status: Feed a sheet of paper Print status: Cancel printing |
| Premere a lungo | Standby status: Calibrate paper type | |
| Premere due volte | Standby status: Print testing page |
3.3 Indicatore luminoso
| Colore | Stato | Descrizione |
|---|---|---|
| - | Spento | L'alimentazione è disattivata |
| Blu | Solido | Acceso ma non connesso |
| Blu | Lampeggiante | Aggiornamento del firmware |
| Verde | Solido | Stampante collegata |
| Verde | Lampeggiante lentamente | Trasmissione dei dati |
| Verde | Lampeggiante | Stampa |
| Rosso | Solido | Printer fault. See "Troubleshooting" |
| Bianco | Solido | The printer is connected to Wi-Fi (K3_W only) |
4. Installazione e utilizzo
4.1 Collegamento dell'alimentatore
- Confirm that the printer power switch is in the off (O) position.
- Connect the power cord to the printer's DC power socket.
- Collegare l'altra estremità del cavo di alimentazione a una presa di corrente CA adatta.
- If the AC power outlet is switched on, the power indicator light will turn blue.

Figura 4: Collegamento di alimentazione
Nota:
- Please use the official power adapter included with the printer to avoid damaging the product or causing other hazards.
- If you do not plan to use the printer for an extended period, disconnect the power cord.
4.2 Caricamento della carta per etichette
- Facing the front of the device, press the compartment release button to lift the paper compartment cover.
Nota: Do not touch the cutting blade with your finger - risk of injury!
- Adjust the label roll so that the printing surface will face up when passing through the print (drive) roller. Pull the guides open with your free hand, then place the label roll on the roll holder and release the guides. Make sure the label roll can rotate freely.
Nota: Non posizionare il rotolo di etichette sul fondo dello scomparto della carta.

Figure 5: Reel-less Paper Bin Design

Figure 6: Label Paper Placement Options
- Thread the label paper through the guides.
- Close the paper compartment cover and press down until it clicks into place.
Nota:
- If the label paper does not pass through the guides, the printed text will be offset.
- If you do not pull the label paper out of the printer, this will result in a paper output error and you will not be able to print.
4.3 Download di software
To use this product, you will need to download the appropriate software.
4.3.1 Download Computer Version
Visit the software downloads page on NIIMBOT's official website (www.niimbot.com) to download and install the computer version of "NIIMBOT."
4.3.2 Scarica l'app mobile
The NIIMBOT app is available from Google Play and the App Store on Apple devices.

Figure 7: NIIMBOT App Features and Download Options
Ulteriori istruzioni possono essere viewed in the NIIMBOT app under: Sign in to NIIMBOT > Me > Help Center > Hardware.
4.4 Collegamento di dispositivi esterni
4.4.1 Connessione USB
This printer can be connected to an external device with a USB Type-B cable.
Fasi di installazione:
- Spegnere la stampante (O).
- Connect the USB data cable to the USB port on the back of the printer, then connect the printer.
- Accendere la stampante.
4.4.2 Connessione Bluetooth
- Premere l'interruttore di alimentazione per accendere la stampante.
- Open the "NIIMBOT" app.
- Select the printer and follow the onscreen prompts to pair the printer with your device.
4.4.3 Wi-Fi Connection (K3_W only)
To connect from the mobile app:
- Accendere la stampante.
- Open the "NIIMBOT" app.
- Follow the onscreen prompts to establish a connection.
To connect from a computer:
- Accendere la stampante.
- Connect the printer to your computer using a USB data cable.
- Open the "NIIMBOT" computer app.
- Follow the onscreen prompts to establish a connection.
4.5 Installing the Windows Driver
4.5.1 Downloading the Driver
Navigate to the official NIIMBOT website (www.niimbot.com), and select Download Center - Third-Party Driver Downloads to obtain the driver for installation.
4.5.2 Installazione del driver
- Select the printer model (K3 or K3_W) from the list.
- Select the USB option to connect the printer to the computer with a USB cable.
- Once connected, the computer will automatically display the USB port.
- The driver is now successfully installed.
5. Manutenzione della stampante
Regular maintenance is required in order to ensure optimal printing results.
Nota:
- Before cleaning the printer, turn off the power and remove the power cord.
5.1 Pulizia esterna del dispositivo
Use a soft, dry cloth to wipe dust and stains off the device. For stubborn stains, use a slightly damp stoffa.
Nota:
- Do not use paint thinner, benzene, alcohol or any other organic solvent, as these may cause deformation or damage to the printer housing.
5.2 Pulizia della testina di stampa
- Before cleaning the printhead, switch off the printer and disconnect the power supply.
- Rub a cleaning pen across the dark area of the printhead. Clean from the middle to the outside to move adhesive transferred from the edges of the printhead outside of the label path.
- Wait one minute to allow the printer to dry, then close the compartment cover.
Nota:
- The printhead becomes hot while printing. To avoid damaging the printhead and prevent personal injury, do not touch the printhead.
5.3 Pulizia del sensore
ESD warning: The discharge of electrostatic energy that accumulates on the surface of the human body can damage the printhead or electronic components used in this device. Always observe static-safe procedures when working with the printhead or the electronic components under the top cover.
- Dust may accumulate on the sensor. Gently brush away dust; if necessary, use a dry swab. If adhesives or other contaminates remain, remove them using an alcohol moistened swab.
- Use a dry swab to remove any residue that may be left from the first cleaning.
- Repeat steps 1 and 2 as required until all residue and streaks are removed from the sensor.
- Wait one minute to allow the printer to dry, then close the compartment or insert a label roll.
5.4 Cleaning and Replacing the Print Roller
- Open the compartment cover and remove the label paper.
- Press the tabs on the left and right sides out, then rotate them up.
- Lift the print roller out of the printer's bottom frame.
- Use a cleaning swab dipped in alcohol or a lint free cloth to clean the print roller, cleaning from the center toward the outer edges. Repeat this process until the surface of the print roller is completely clean. If there is heavy adhesive build-up or labels are jammed, repeat with a new swab to remove residual contaminates.
- Insert the print roller back into the printer's bottom frame.
- Rotate the tabs back and snap them into place.
- Wait one minute to allow the printer to dry, then close the compartment or insert a label roll.
6. Risoluzione Dei Problemi
6.1 Solid Red Indicator Light
| Possibile motivo | Soluzione |
|---|---|
| Compartment cover is not closed | Check and close the compartment cover |
| Nessuna etichetta | No label paper is loaded. See Loading label paper |
| Label paper is not pulled out of the label compartment | Pull the label paper out of the label compartment and close the paper compartment cover |
| The printhead temperature is too high | Stop printing and wait until the printhead cools, then resume printing. |
| Errore di stampa | Follow the onscreen prompts in the app. |
6.2 Cannot Find Printer with Bluetooth
| Possibile motivo | Soluzione |
|---|---|
| The printer is not turned on. | Connect the power supply and move the power switch to the on position. |
| The limit for connected devices has been exceeded. | Disconnect the Bluetooth connections to other devices and search again. |
| Bluetooth is not enabled on your mobile device. | Abilita il Bluetooth sul tuo dispositivo mobile. |
6.3 Cannot Find Printer with USB Connection
| Possibile motivo | Soluzione |
|---|---|
| The printer is not turned on. | Connect the power supply and move the power switch to the on position. |
| USB cable is not connected. | See USB connection |
| The required driver is not installed | See Installing the driver |
6.4 Cannot Find Printer with Wi-Fi
| Possibile motivo | Soluzione |
|---|---|
| The printer is not turned on. | Connect the power supply and move the power switch to the on position. |
| Unsupported printer model | The Wi-Fi function is only available on the K3_W. |
| The printer is not connected to the network. | See Wi-Fi connection |
| The printer and app are not on the same local area network. | Make sure the printer and app are on the same local area network. |
6.5 Printer Does Not Print or Stops Printing
| Possibile motivo | Soluzione |
|---|---|
| Nessuna corrente elettrica. | If the printer status light is off, check that the power cord is properly connected. |
| Paper feed error | See Paper feed error |
| Il cavo USB è allentato | Check for a loose connection at the back of the printer or on the computer |
| Il Bluetooth è disconnesso | Check that the printer is paired with the app over Bluetooth. |
| Il Wi-Fi è disconnesso | Check that the printer is paired with the app over Wi-Fi. |
6.6 Printing Is Not Clear
| Possibile motivo | Soluzione |
|---|---|
| The print density settings are not correct. | Regola la densità di stampa. |
| The printhead is dirty. | Clean the printhead. See Cleaning the printhead. |
| The print roller is dirty or damaged. | Clean or replace the print roller. See Cleaning and replacing the print roller. |
| The printhead is worn out. | Please contact the official customer service to request a replacement printhead. |
| Third-party label paper | We recommend using official NIIMBOT supplies. |
6.7 No Content Printed on Labels
| Possibile motivo | Soluzione |
|---|---|
| The printer was loaded with non-thermal label paper. | Use thermal label paper. |
| Label paper is not loaded correctly. | The label paper's printing surface must face upward toward the printhead. See Loading label paper |
6.8 Paper Feed Error
| Possibile motivo | Soluzione |
|---|---|
| Label paper is not loaded correctly. | See Loading label paper. |
| Inceppamento della carta | Open the compartment cover and pull the jammed paper out of the print roller, then reload it. |
| No label paper. | Replace the label paper. |
| Tipo di etichetta errato | Use the same type of label paper that you selected in the app. |
7. Specifiche
| Categoria | Specificazione | NIIMBOT K3 | NIIMBOT K3_W |
|---|---|---|---|
| Misurare | Dimensioni | 232*145*148mm | |
| Peso | 1.2KG | ||
| Stampa | Metodo di stampa | Termico | |
| Risoluzione | 203dpi | ||
| Velocità di stampa | Massimo 180mm/s | ||
| Larghezza di stampa effettiva | 80mm | ||
| Lunghezza di stampa | 15mm-300mm | ||
| Printhead lifespan | 80 chilometri | ||
| Interfacce di comunicazione | Bluetooth | SÌ | |
| USB | USB di tipo B | ||
| Wifi | NO | Supporta 2.4G | |
| Alimentazione elettrica | Adattatore | 24V/2.5A | |
| Materiali di consumo | Tipo | Etichette fustellate | |
| Larghezza | 20 mm - 82 mm | ||
| Lunghezza | 15 mm - 300 mm | ||
| Spessore | 0.08 mm - 0.20 mm | ||
| Materiali di consumo | Diametro del rotolo di carta | max 105mm | |
| Inside diameter of roll core | 25.4 mm, 40 mm | ||
| Linguaggio di programmazione | Protocollo CPCL/NIIMBOT | ||
| Software | Design dell'etichetta | NIIMBOT (APP E PC) | |
| Autista | Win7/10/11 | ||
| Font incorporati | Chinese GB18030 16x16 dot matrix, 24x24 dot matrix English: Ascii 8*16 dot matrix, 12*24 dot matrix | ||
| Codice a barre | One-dimensional | UPC-A, UPC-C, EAN13, EAN8, code 39, code 93, I2OF5, code 128, codabar | |
| Bidimensionale | PDF-417, codice QR | ||
| Controlli | Interruttore di alimentazione | Interruttore di alimentazione a bilanciere | |
| Pulsanti | Pulsante di alimentazione della carta | ||
| Spia luminosa | Rosso/Verde/Blu | Red/Green/Blue/white | |
| Condizioni ambientali | Lavorando | 0 to 45°C, 10 to 85% RH (non-condensing) | |
| Magazzinaggio | -10 to 60°C, 10 to 90% RH (non-condensing) | ||
8. Label Paper
For best results, we recommend using official NIIMBOT supplies. Our specially designed label products improve print performance and prevent premature wear of the printhead.
8.1 Verifying Label Compatibility
- With ordinary thermal label paper, you can scratch the print surface of the medium with a fingernail or pen cap.
- Official NIIMBOT thermal label paper offers improved thermal-resistant and waterproof performance.
- Use a lighter to heat up the paper to test whether any black marks appear on the label paper.
Nota:
- If a black mark appears on the paper, then the label is made from a thermal material and is supported by this printer.
- If there is no black mark, then the label is a thermal transfer label and requires the use of a carbon ribbon, which is not supported by this printer.
8.2 Label Type
| Tipo di etichetta | Paper Feed Type | Descrizione |
|---|---|---|
| Non-continuous roll | Distanziato | Each label is separated by gaps. |
| Segno nero | Pre-printed black marks on the back of the media are used to indicate label separations. | |
| Non-continuous roll | Trasparente | The labels are made from a transparent material, and each label is separated by gaps. |

Figure 8: Multiple Label Types/Sizes
9. Suggerimenti per l'utente
- Compatibilità delle etichette: Niimbot K3 printers are only compatible with Niimbot K3 label paper. Using other Niimbot models' labels may lead to printing issues.
- Connettività: The K3 model supports Bluetooth and USB connections, while the K3_W model additionally supports Wi-Fi for enhanced wireless printing capabilities.
- Applicazioni versatili: This printer is designed for personal work management and can be used across various industries such as retail, logistics, and jewelry for printing price tags, barcodes, shipping labels, and more.
- Etichette durevoli: The recommended Niimbot K3 labels are waterproof, oil-proof, anti-scratch, and tear-resistant, ensuring longevity and readability.
- Ad alta velocità: Enjoy print speeds of up to 180 mm/sec, capable of producing approximately 20,000 labels per hour, making it significantly faster than portable labelers.
Video 1: Demonstration of Niimbot K3/K3W printer features and various application scenarios.
10. Garanzia e supporto
Wuhan Jingchen Tecnologia di identificazione intelligente Co., Ltd.
E-mail di supporto: service@niimbot.com
Ufficiale Websito: www.niimbot.com
Manufacturer's Address: No. 5, Creative Workshop, Creative World, Yezhihu West Road, Hongshan District, Wuhan, China
© 2024 NIIMBOT. Tutti i diritti riservati.
NIIMBOT è un marchio di Wuhan Jingchen Intelligent Identification Technology Ltd.
Per ulteriore assistenza, fare riferimento a Manuale utente (PDF).





