1. Einleitung
The NIIMBOT B21 is a portable thermal label printer designed for various labeling needs, from home organization to small business applications. It supports label widths ranging from 20mm to 50mm (0.8-2 inches) with an effective printable width of 48mm. This device utilizes thermal printing technology, eliminating the need for ink or toner. It connects wirelessly via Bluetooth to smartphones (Android & iOS) and via USB to PCs (Windows 7/10).
2. Lieferumfang
Upon unboxing your NIIMBOT B21 Label Maker, you should find the following items:
- 1 x B21 Label Maker
- 1 x Benutzerhandbuch
- 1 x USB-Kabel
- 1 x Roll of 50x30mm Labels (230pcs/Roll)

Image: Contents of the NIIMBOT B21 Label Maker package.
3. Einrichtung
3.1. Einschalten und Laden
The NIIMBOT B21 is equipped with a 1500mAh lithium battery. To power on, press and hold the power button for three seconds. The indicator light will illuminate. To charge the device, connect it using the provided USB Type-C cable.

Image: The NIIMBOT B21 Label Maker, highlighting its power button and compact size.
3.2. Etiketten einlegen
Follow these steps to correctly load the label roll:
- Press the lever on the side of the printer to open the label compartment.
- Adjust the tape slot to accommodate your label roll size (20-50mm width).
- Place the label roll into the compartment, ensuring the label tape extends upwards (facing up).
- Close the label compartment, leaving a small portion of the label tape extending for smooth feeding.

Image: Correct label loading procedure for the B21 printer.
3.3. App-Installation und Verbindung
The NIIMBOT B21 can be controlled via the NIIMBOT app on your smartphone or a driver on your PC.
Smartphone Connection (Bluetooth)
- Download the free NIIMBOT app from the App Store (iOS) or Google Play Store (Android).
- Stellen Sie sicher, dass Bluetooth auf Ihrem Telefon aktiviert ist.
- Open the NIIMBOT app and select the B21 printer model to connect.
- If prompted for a pairing code, enter 0000 or 1234.
Video: Demonstrates connecting the NIIMBOT B21 printer to a smartphone via Bluetooth and printing a label.
PC Connection (USB)
For PC use, download the necessary driver from the official NIIMBOT website. The printer is compatible with Windows 7/10 (not compatible with Mac or iPad).
- Besuchen Sie den offiziellen NIIMBOT website to download the PC driver.
- Install the driver on your Windows 7/10 PC.
- Connect the NIIMBOT B21 to your PC using the provided USB cable.
- Open the NIIMBOT desktop application and select the B21 printer model to connect.
Video: Shows the process of connecting the NIIMBOT B21 printer to a PC and printing a label.
4. Bedienungsanleitung
Die NIIMBOT-App bietet umfangreiche Anpassungsmöglichkeiten für Ihre Etiketten:
- Text: Add custom text with over 30 fonts and multiple languages.
- Symbole & Rahmen: Choose from 1500+ symbols and 100+ borders to enhance your labels.
- Barcodes & QR-Codes: Generate and print barcodes and QR codes for product identification or information.
- OCR-Druck: Utilize Optical Character Recognition for quick text input.
- Excel Import: Daten aus Excel für den Stapeldruck importieren.
- Bilddruck: Print images directly onto labels.

Image: The NIIMBOT app interface with various label design tools.
4.1. Erstellen und Drucken von Etiketten
- Open the NIIMBOT app and ensure your printer is connected.
- The app will automatically identify the loaded label type.
- Select a template or create a new label from scratch.
- Use the editing tools to add text, icons, barcodes, or images.
- Adjust print density and number of copies as needed.
- Click the 'Print' button to send your design to the printer.

Image: Easy steps for printing labels: Load paper, pair Bluetooth, then edit and print.
5. Wartung
5.1. Reinigung des Druckkopfes
Um eine optimale Druckqualität zu gewährleisten, reinigen Sie den Druckkopf regelmäßig. Verwenden Sie dazu ein weiches, fusselfreies Tuch und wischen Sie ihn vorsichtig ab.ampMit Isopropylalkohol abwischen. Die Oberfläche des Druckkopfes vorsichtig abwischen. Vor Gebrauch vollständig trocknen lassen.
5.2. Batteriepflege
To prolong battery life, avoid fully discharging the battery frequently. Charge the device when the battery level is low. If storing the printer for an extended period, ensure it is partially charged (around 50%) and recharge every few months.
6. Fehlerbehebung
If you encounter issues with your NIIMBOT B21, consider the following common solutions:
- Kein Strom: Stellen Sie sicher, dass das Gerät aufgeladen ist. Verbinden Sie es mit dem USB-C-Kabel mit einer Stromquelle.
- Verbindungsprobleme: Verify Bluetooth is enabled on your smartphone or the USB cable is securely connected to your PC. Restart the app or printer if necessary.
- Schlechte Druckqualität: Check if the label roll is loaded correctly (facing up). Clean the print head as described in the maintenance section. Ensure you are using genuine NIIMBOT labels for best results.
- Etiketten, die nicht füttern: Open the label compartment and ensure the roll is properly seated and the tape is extending correctly.
- App reagiert nicht: Close and reopen the NIIMBOT app. Ensure your device's operating system is up to date.
7. Spezifikationen
| Besonderheit | Spezifikation |
|---|---|
| Modellname | NB21-W |
| Marke | NIIMBOT |
| Drucktechnologie | Thermal |
| Konnektivitätstechnologie | Bluetooth, USB |
| Maximale Mediengröße | 2 inch (20mm-50mm width) |
| Effective Printable Width | 48 mm |
| Maximale Schwarzweiß-Druckauflösung | 203 dpi |
| Maximale Druckgeschwindigkeit (Monochrom) | 35 ppm |
| Batteriekapazität | 1500 mAh Lithiumbatterie |
| Artikelgewicht | 0.58 Kilogramm (1.28 Pfund) |
| Technische Daten | 2.3"T x 2.4"B x 5.1"H |
| Kompatible Geräte | Smartphone (Android & iOS), PC (Windows 7/10) |
8. Garantie und Support
The NIIMBOT B21 Label Maker comes with a limited warranty. For specific warranty terms and conditions, please refer to the warranty card included in your product packaging or visit the official NIIMBOT webWebsite.
For technical support, troubleshooting assistance, or inquiries about replacement parts and accessories, please contact NIIMBOT customer service through their official webWebsite oder die in Ihrer Produktdokumentation angegebenen Kontaktinformationen.





