The Zebra ZT420 is a rugged industrial label printer that supports both thermal‑transfer and direct‑thermal printing, making it highly versatile for manufacturing, warehousing, and logistics applications. It delivers crisp, consistent output with a 203 dpi resolution (with a 300 dpi upgrade option) and prints at speeds up to 305 mm/s (12 in/s). Powered by a 32‑bit, 400 MHz processor, and equipped with 256 MB RAM and 512 MB flash, the ZT420 easily handles complex label formats. With dual media sensors (transmissive and reflective) and a side‑loading metal frame, ribbon and media loading is quick and intuitive. Connectivity options include USB, RS‑232, 10/100 Ethernet, Bluetooth, and a USB host port, all running on Zebra’s Link-OS® platform for remote management. The printer features a back-lit LCD display, tool-less printhead and platen replacement, and ENERGY STAR® certification for energy-efficient operation.