소개
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.
패키지 내용
패키지를 열면 모든 구성품이 들어 있는지 확인하세요.
- 1 x Nelko P21 Label Maker
- 1 x 사용자 설명서
- 1 x Type-C 충전 케이블
- 가이드 카드 1장
- 1 x Roll of White Label Paper (pre-installed or included separately)

Image: Contents of the Nelko P21 Label Maker package.
설치 가이드
1. 장치 충전
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.
중요한: 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. 블루투스로 연결하기
- Turn on your Nelko P21 Label Maker by pressing and holding the power button until the indicator light turns on.
- 스마트폰에서 블루투스를 활성화하세요.
- 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. 라벨 테이프 부착
- 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.
메모: 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.
작동 지침
라벨 생성 및 인쇄
The Nelko app offers a wide range of customization options for your labels:
- 라벨 디자인하기: 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.
- 사용자 정의: Adjust font sizes, styles, and placement. Explore the "AI Gallery" for additional creative resources and icons.
- 사전view: Before printing, use the preview function in the app to ensure your label appears as desired.
- 인쇄: 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.

이미지: 전amples 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.
유지
프린트 헤드 청소
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.
- 프린터 전원이 꺼져 있고 전원 콘센트에서 분리되어 있는지 확인하십시오.
- 라벨함을 엽니다.
- Gently wipe the print head (the black strip inside the compartment) with a cotton swab lightly damp이소프로필 알코올로 소독함.
- 프린터 덮개를 닫고 프린터를 사용하기 전에 프린트 헤드가 완전히 마르도록 하십시오.
저장
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.
문제 해결
| 문제 | 가능한 원인 | 해결책 |
|---|---|---|
| 프린터가 블루투스로 연결되지 않습니다. | 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. |
| 라벨이 제대로 공급되지 않음 | 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.
명세서
| 특징 | 세부 사항 |
|---|---|
| 모델명 | 피21 |
| 상표 | 넬코 |
| 연결 기술 | 블루투스 |
| 인쇄 기술 | 열전사(잉크 없음) |
| 인쇄 해상도 | 203DPI(인치당 도트 수) |
| 최대 인쇄 속도(흑백) | 30mm/초 |
| 호환 장치 | 스마트폰(iOS 및 안드로이드) |
| 지원되는 라벨 크기 | 12x40mm, 14x40mm, 14x50mm, 14x75mm, 15x30mm |
| 배터리 | 충전식 (1A 배터리 포함) |
| 충전 인터페이스 | USB 타입-C |
| 제품 치수 | 6.65인치 깊이 x 4.5인치 너비 x 1.9인치 높이(16.9 x 11.4 x 4.8cm) |
| 품목 무게 | 9.9 온스(280그램) |
| 특별 기능 | Portable, Inkless, Built-in Cutter, App Control, Multiple Templates, QR/Barcode Printing |
보증 및 지원
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






