Zebra QLn420 Portable Bluetooth Wi-Fi Thermal Barcode Label Printer

The Zebra QLn420 (QN4-AUNA0E00-00) is a rugged portable thermal barcode label printer designed for mobile printing applications in warehouse, retail, and field service environments. Featuring wireless Bluetooth and Wi-Fi connectivity, a large 4-inch print width, and Zebra's durable construction, it delivers reliable on-demand label printing at the point of work without requiring a fixed printer station.

Key Features

• 4-inch print width — wider than standard 2-inch or 3-inch mobile printers
• Wireless Bluetooth and Wi-Fi for flexible mobile connectivity
• Rugged construction for warehouse, retail, and field service use
• Direct thermal printing — no ribbon required
• Long-life battery for extended all-day mobile printing
• Zebra Link-OS for remote management and app development

Product Specifications

• Part Number: QN4-AUNA0E00-00
• Manufacturer: Zebra
• OEM Status: OEM
• Model: QLn420
• Print Width: 4 inches
• Print Method: Direct Thermal
• Connectivity: Bluetooth, Wi-Fi (802.11)
• Form Factor: Portable / Mobile

Print Specifications

• Print Width: Up to 4.09 inches (104mm)
• Resolution: 203 DPI
• Print Speed: Up to 4 ips
• Print Method: Direct Thermal
• Label Types: Labels, receipts, tags

Connectivity Specifications

• Bluetooth: Bluetooth 3.0
• Wi-Fi: 802.11 a/b/g/n dual-band
• USB: USB client (charging and data)
• Management: Zebra Link-OS, Zebra Print DNA
• Battery: Li-Ion rechargeable — all-day use

Use Cases

• Warehouse receiving and shipping label printing at point of work
• Retail shelf-edge and price tag mobile printing
• Field service asset and compliance label printing
• Healthcare patient ID wristband and specimen label printing

Compatibility

• Compatible with ZPL and CPCL label programming languages
• Works with major WMS and mobile computing platforms via Bluetooth and Wi-Fi
• Managed via Zebra Link-OS and Zebra Print DNA suite
• Compatible with Zebra QLn420 media and accessories

Frequently Asked Questions

What print width does the QLn420 support?

The Zebra QLn420 supports up to 4.09 inches (104mm) print width — the widest in the Zebra QLn portable printer series, suitable for 4-inch shipping and compliance labels.

Does the QLn420 support Wi-Fi?

Yes — the QN4-AUNA0E00-00 includes dual-band 802.11 a/b/g/n Wi-Fi in addition to Bluetooth 3.0 for flexible wireless connectivity.

What label language does the QLn420 use?

The Zebra QLn420 supports ZPL (Zebra Programming Language) and CPCL — compatible with Zebra label design software and most WMS label printing integrations.

The Zebra QLn420 (QN4-AUNA0E00-00) delivers 4-inch wide portable thermal label printing with Bluetooth and Wi-Fi — a rugged, mobile printing solution for warehouse, retail, and field service on-demand label printing. Order today and bring professional label printing to your point of work.