Zebra ZT421 – 6-Inch Industrial Large Format Printer
Power, advanced connectivity, and superior print width for the most demanding industrial applications.
The Zebra ZT421 is designed to deliver reliable performance and versatility in critical industrial environments. With a maximum print width of up to 168 mm (6.6 inches) and a rugged metal frame, this printer easily handles high-volume labeling for logistics, manufacturing, and distribution. Equipped with an intuitive 4.3-inch color touch display, it allows for immediate management of settings and operational status.
Description Zebra ZT421 – 6-Inch Industrial Large Format Printer
The ZT400 Series evolves with the ZT421, a printer that combines Zebra’s legendary durability with the latest technological innovations. Built with an all-metal frame and a bi-fold door that reduces operating space by 35%, it is ideal for integration into production lines where space is at a premium.
The technological core is powered by the Link-OS operating system and the Zebra DNA suite, ensuring simplified remote management, advanced security, and seamless integration into existing workflows. The ZT421 is not only fast—reaching speeds up to 305 mm/s (12 ips)—but also extremely flexible. The side-loading material system and lighted supply paths make media changes quick and intuitive, drastically reducing downtime.
Thanks to field-installable options, such as the UHF RFID module or various media handling configurations (cutter, peeler, or internal rewinder), the ZT421 is a future-proof investment that grows with your business.
Technical specifications Zebra ZT421 – 6-Inch Industrial Large Format Printer
Printing Methods: Thermal transfer and direct thermal.
Maximum Print Width: 6.6 in. (168 mm).
Resolution: Available in 203 dpi (8 dots/mm) or 300 dpi (12 dots/mm).
Maximum Speed: Up to 12 in./second (305 mm/s) at 203 dpi.
User Interface: 4.3 in. color touch display with intuitive menu and bi-colored status LEDs.
Standard Connectivity: USB 2.0 (High Speed), RS-232 Serial, 10/100 Ethernet, Bluetooth 4.1, and Dual USB Host.
Memory: 256 MB RAM (8 MB User Available) and 512 MB Flash (64 MB User Available).
Mechanical Design: Metal media cover with enlarged clear viewing window and side-loading metal print mechanism.

