Uvod
Thank you for choosing the Nelko P21 Bluetooth Label Maker. This compact and portable device utilizes thermal printing technology to create high-quality labels without the need for ink or toner. Designed for ease of use, it connects wirelessly to your smartphone via Bluetooth, allowing you to design and print labels for various organizational needs at home, in the office, or at school.
This manual provides detailed instructions on setting up, operating, maintaining, and troubleshooting your Nelko P21 Label Maker to ensure optimal performance and longevity.

Image: Nelko P21 Label Maker highlighting its compact design and key features.
Sadržaj paketa
Prilikom otvaranja pakovanja, molimo Vas da provjerite da li su sve komponente prisutne:
- 1 x Nelko P21 Label Maker
- 1 x Uputstvo za upotrebu
- 1 x Type-C kabel za punjenje
- 1 x Vodič
- 1 x Roll of White Label Paper (pre-installed or included separately)

Image: Contents of the Nelko P21 Label Maker package.
Vodič za postavljanje
1. Punjenje uređaja
Before first use, ensure the label maker is fully charged. Connect the provided Type-C charging cable to the device and a standard USB power adapter (not included). The indicator light will flash green during charging and turn steady green when fully charged.
Važno: Do not use fast charging adapters, as this may damage the device. Use only standard 5V/1A USB power sources.

Image: Nelko P21 Label Maker charging, with indicator light status explained.

Image: Proper charging method for the Nelko P21, emphasizing the use of an ordinary adapter.
2. Downloading the Nelko App
The Nelko P21 Label Maker operates exclusively with the "Nelko" mobile application. Download the app from your device's app store:
Image: Links to download the Nelko app from App Store and Google Play.
Ensure your app is updated to the latest version for full functionality. For iOS, version 13.0 or later is required. For Android, version 7.0 or later is required.
3. Povezivanje putem Bluetooth-a
- Turn on your Nelko P21 Label Maker by pressing and holding the power button until the indicator light turns on.
- Omogućite Bluetooth na svom pametnom telefonu.
- Open the "Nelko" app. The app will prompt you to connect to the printer. Select "P21" from the list of available devices and confirm the connection. The indicator light on the printer will turn steady blue when successfully connected.

Image: Steps for Bluetooth connection and initial app setup.
4. Installing Label Tape
- Slide the cover button to open the label compartment.
- Load the paper roll into the paper bin, ensuring the label side faces upwards and the roll is correctly seated.
- Unroll a small portion of the label tape so that it extends slightly out of the printer's exit slot.
- Close the cover firmly. Double-click the power button to calibrate the label paper. The printer will feed a small amount of paper and then stop.
Napomena: Do not tear or damage the green sticker on the back of the label strip, as this may affect printing performance. The Nelko P21 only supports fixed-size label tapes and does not support continuous label tapes.

Image: Instructions for installing label tape.

Image: Importance of using Nelko original thermal paper and not damaging the green sticker.
Uputstvo za upotrebu
Kreiranje i štampanje naljepnica
The Nelko app offers a wide range of customization options for your labels:
- Dizajnirajte svoju etiketu: In the Nelko app, you can choose from various templates or start a new design. Add text, QR codes, barcodes, images, time stamps, and borders. The app supports over 90 fonts and 10+ languages.
- Prilagodite: Adjust font sizes, styles, and placement. Explore the "AI Gallery" for additional creative resources and icons.
- Preview: Before printing, use the preview function in the app to ensure your label appears as desired.
- Štampa: Once satisfied, tap the "Print" button in the app. The label maker will quickly print your design.

Image: Nelko app interface for creating custom labels.

Image: Multiple font sizes, styles, and templates available in the Nelko app.

Image: Exploring the AI Gallery for creative label designs.
Label Compatibility and Usage
The Nelko P21 supports various fixed-size thermal labels, including 12x40mm, 14x40mm, 14x50mm, 14x75mm, and 15x30mm. While the printer outputs monochrome (black text), you can use colored pattern label tapes to create vibrant labels.

Image: Supported label sizes and types.

Slika: pramples of labels printed with the Nelko P21.
The built-in cutter ensures clean cuts for each label. After printing, gently tear the label along the cutter edge.

Image: Nelko P21 Label Maker in use, demonstrating printing and app interface.
Održavanje
Čišćenje glave za ispis
Since the Nelko P21 uses thermal printing, it does not require ink cartridges. However, regular cleaning of the print head can help maintain print quality.
- Ensure the printer is turned off and disconnected from power.
- Otvorite odjeljak za etikete.
- Gently wipe the print head (the black strip inside the compartment) with a cotton swab lightly dampnapunjen izopropil alkoholom.
- Ostavite glavu za štampanje da se potpuno osuši prije nego što zatvorite poklopac i počnete koristiti štampač.
Skladištenje
Store the label maker in a cool, dry place away from direct sunlight and extreme temperatures. Keep label rolls sealed in their original packaging until ready for use to prevent degradation of the thermal paper.
Rješavanje problema
| Problem | Mogući uzrok | Rješenje |
|---|---|---|
| Štampač se ne povezuje putem Bluetootha | Bluetooth is off on phone; Printer is off; App version is outdated; Printer is out of range. | Ensure Bluetooth is enabled on your phone. Turn on the printer. Update the Nelko app to the latest version. Move the phone closer to the printer. |
| Poor print quality (faint, blurry, or incomplete) | Print head is dirty; Label tape installed incorrectly; Non-original Nelko labels used; Green sticker on label damaged. | Clean the print head (see Maintenance section). Reinstall label tape correctly, ensuring the green sticker is intact. Use original Nelko thermal labels for best results. |
| Printer not printing / Red Indicator Light | Low battery; Cover is open; Out of label paper; Print head overheated. | Charge the printer. Ensure the cover is fully closed. Replace the label roll. Allow the printer to cool down if it has been used continuously. |
| Etikete se ne uvlače ispravno | Label roll not calibrated; Label tape jammed. | Double-click the power button to calibrate the label roll. Open the cover, clear any jammed paper, and reinstall the roll. |

Image: Indicator Light meanings for troubleshooting.
Specifikacije
| Feature | Detalj |
|---|---|
| Naziv modela | P21 |
| Brand | Nelko |
| Tehnologija povezivanja | Bluetooth |
| Tehnologija štampe | Termalni (bez tinte) |
| Rezolucija štampanja | 203 DPI (tačaka po inču) |
| Maksimalna brzina štampanja (monohromatski) | 30 mm/s |
| Kompatibilni uređaji | Pametni telefoni (iOS i Android) |
| Podržane veličine etiketa | 12x40mm, 14x40mm, 14x50mm, 14x75mm, 15x30mm |
| Baterija | Rechargeable (1 A battery included) |
| Interfejs za punjenje | USB Type-C |
| Dimenzije proizvoda | 6.65"D x 4.5"Š x 1.9"V (16.9 x 11.4 x 4.8 cm) |
| Težina artikla | 9.9 unce (280 grama) |
| Posebne karakteristike | Portable, Inkless, Built-in Cutter, App Control, Multiple Templates, QR/Barcode Printing |
Garancija i podrška
For detailed warranty information, please refer to the warranty card included with your product or contact Nelko customer support. If you encounter any issues not covered in this manual, or require further assistance, please reach out to Nelko customer service.
You can also refer to the official User Manual PDF available online: Nelko P21 User Manual PDF
For additional support and resources, visit the official Nelko Store: Nelko Store on Amazon






