Zebra ZT421 label printer Direct thermal / Thermal transfer 300 x 300 DPI 305 mm/sec Wired & Wireless Ethernet LAN Bluetooth

The Zebra ZT421 label printer combines direct thermal and thermal transfer printing in a durable all-metal frame with a bi-fold door and a 4.3-inch full-color touch display. It supports up to 300 x 300 DPI resolution, a maximum print width of 168 mm and a top speed of 305 mm/sec, and offers wired and wireless connectivity options including Ethernet LAN and Bluetooth. The ZT421 is designed for easy integration and future expansion through factory- or field-installable options such as RFID and media-handling accessories.

Advantages

The ZT421 provides a robust build and user-focused features: color-coded status alerts on a 4.3-inch touch screen for quick diagnostics, lighted side-loading media paths for simple ribbon and label replacement, and tool-less print head and platen roller replacement to minimize downtime. Two open communication slots and multiple connectivity choices allow customization and future upgrades. The printer supports Zebra’s Print DNA suite and Link-OS for simplified management and integration.

Suitable for

• High-quality label printing in warehousing and logistics
• Product and asset labeling in manufacturing
• Retail shelf and price labeling
• Shipping and compliance label production

Key specifications

• Print technology: Direct thermal / Thermal transfer
• Maximum resolution: 300 x 300 DPI
• Maximum printing width: 168 mm
• Print speed: Up to 305 mm/sec
• Connectivity: Ethernet LAN, Bluetooth, USB, Serial
• Weight: 18.4 kg
• Model / MPN: ZT42163-T2E0000Z

How to use

Install the printer on a stable surface and connect power and the chosen interface (Ethernet, USB or Bluetooth). Load media and ribbon via the lighted, side-loading supply path and follow on-screen prompts on the 4.3-inch touch display. Configure print settings such as resolution and media width through the printer menu or Zebra management tools. For network deployment, use Zebra Print DNA utilities to register, update firmware and manage device settings centrally.

Recommendations

Use the ZT421 with labels and ribbons recommended for direct thermal or thermal transfer printing and perform regular inspections of the print head and platen roller. Add factory- or field-installable modules (for example RFID or additional interface cards) only when needed to match evolving workflow requirements.