Zebra QLn420

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The Zebra QLn420 is a mobile label printer designed for high-volume printing in demanding environments such as retail, logistics, and healthcare. It utilizes direct thermal printing technology with a resolution of 203 dpi, enabling clear and sharp images and text. The device supports a maximum print width of 4.1 inches (104 mm) suitable for a range of label sizes. Connectivity options include Wi-Fi 802.11a/b/g/n and Bluetooth 3.0, ensuring flexible and reliable data transfer. The QLn420 is powered by a 2200 mAh rechargeable lithium-ion battery, allowing extended operation for mobile tasks. It includes a color display and supports Zebra's Link-OS environment for ease of integration and remote device management.

The printer incorporates advanced barcode printing capabilities, supporting various symbologies such as Code 128, QR Code, and Data Matrix. Its rugged design ensures operation reliability in industrial environments with drop resistance of up to 5 feet and IP54 sealing against dust and moisture. The QLn420 offers software compatibility with popular mobile operating systems including iOS, Android, and Windows, facilitating diverse printing applications. Moreover, the printer features fast processing speeds and a user-friendly interface with intuitive buttons and status indicators.

The Zebra QLn420 excels with its mobility and ruggedness, enabling use in challenging field conditions. Its multiple wireless connectivity options provide flexible integration into existing infrastructure. High resolution printing ensures professional-quality labels with clear barcodes and text. The rechargeable battery provides all-day printing without frequent recharges. Compatibility with Zebra's Link-OS simplifies device management and app development. Additionally, its wide media handling capabilities support various label types and sizes.

Despite the solid wireless connectivity, the QLn420 lacks support for the latest Bluetooth 5.0 standard, which could improve speed and range. The 203 dpi resolution, while adequate for many tasks, may not meet requirements for ultra-high precision printing. Battery capacity, though sufficient for standard shifts, may be limiting in very high volume or extended operations without spare batteries. The device's weight is higher compared to some more recent models, potentially affecting handheld comfort. The user interface, while functional, is less advanced than newer printers with touchscreen controls. The printer also does not support color printing, which limits its applications to monochrome labels.

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