P21 Portable Bluetooth Label Printer

Does the P21 need ink, toner, or ribbons?

No. The P21 uses inkless thermal printing, so it does not need ink, toner, or ribbons. You only need compatible thermal label rolls for printing.

Can I print from a computer with the P21?

The NELKO P21 is made for mobile printing through the NELKO app on iOS and Android devices. For computer printing or bulk shipping-label tasks, we recommend choosing a NELKO model designed for desktop or shipping-label use. Such as PL70E

What label sizes does the P21 support?

The P21 works with NELKO label rolls made for the P21 series. Please choose P21-compatible label paper from the official NELKO store or product page to make sure the size, feeding, and printing results match your printer.

Can the P21 print barcodes or QR codes?

The NELKO app supports barcode and QR code label creation. For better scanning results, keep the code large enough, avoid overly crowded designs, and test the printed code before using it on important items.

Are P21 labels waterproof or scratch-resistant?

P21 compatible NELKO labels are designed for daily use and can help resist water, oil, and scratches depending on the label material. Actual durability may vary by surface and usage environment, so we recommend testing one label first for important applications.

Can I use the P21 for shipping labels?

No. The P21 is for small labels and organization labels. It is not suitable for standard 4×6 shipping labels. For shipping labels, use a dedicated shipping label printer such as a NELKO PL70E.