Zebra ZD421T label printer Thermal transfer 300 x 300 DPI 102 mm/sec Wired & Wireless Ethernet LAN Bluetooth

The Zebra ZD421T is a 4-inch thermal transfer label printer offering 300 x 300 DPI resolution and printing speeds up to 102 mm/sec. Designed for reliable, long-term operation, it supports wired and optional wireless connectivity, provides an LCD display for status, and offers field-upgradeable options and media handling. The model is suitable for environments that require consistent, high-quality label output with easy setup and remote or onsite management.

Advantages

The ZD421T combines durability, flexible configuration and built-in security to reduce downtime and protect data. Print DNA software simplifies installation, operation and remote management while PrintSecure helps guard against cyber threats. The printer’s 108 mm maximum print width, thermal transfer technology and a user-friendly LCD make it practical for a wide range of label applications. Field-upgradeable connectivity and media handling allow the device to adapt as business needs change.

Suitable for

• Retail price and shelf labeling
• Shipping and logistics labels
• Healthcare specimen and patient identification labels (use disinfectant-ready models if required)
• Manufacturing and inventory tracking
• Office and back-office labeling tasks

Key specifications

• Print technology: Thermal transfer
• Resolution: 300 x 300 DPI
• Maximum print width: 108 mm
• Print speed: Up to 102 mm/sec
• Display: LCD
• Connectivity: Wired (Ethernet LAN); optional wireless configurations
• Product colour: Grey
• Manufacturer part number (MPN): ZD4A043-30EE00EZ
• EAN: 8596375242968

How to use

Install the printer using the included Print DNA tools and follow the quick-start instructions to load thermal transfer ribbon and label media. Connect the printer to your network via Ethernet or configure wireless connectivity if supported by your specific configuration. Use the LCD for basic setup and status monitoring. Manage firmware, settings and devices locally or remotely using Zebra’s web-based management utilities and Print DNA applications.

Recommendations

For durable, long-lasting prints use high-quality thermal transfer ribbons and compatible label stocks; if the printer operates in clinical environments, choose the disinfectant-ready variant and follow the manufacturer's cleaning guidelines. Regularly update firmware and security settings via Print DNA to maintain protection and performance.