Download the official Zebra ZD421t driver to activate high-performance thermal transfer printing. With ribbon-based output, the ZD421t is perfect for long-lasting barcode, asset, and compliance labeling in manufacturing, logistics, and retail.
Product Name: Zebra ZD421t
Model: ZD421t Thermal Transfer Desktop Label Printer
Printer Type: Label Printer (Thermal Transfer)
Connectivity: USB / USB Host / Optional Ethernet, Serial, Wi-Fi
Click below to download the certified driver for your Windows environment.
Supported Operating Systems
- Windows 7 (64-bit)
- Windows 8 (64-bit)
- Windows 10 (64-bit)
- Windows 11 (64-bit)
For firmware updates, documentation, and setup guides, visit the official Zebra driver page:
👉 Visit Zebra ZD421t Official Support
Troubleshooting and Additional Help
If your ZD421t printer is not printing or the ribbon is not detected, re-seat the ribbon, ensure proper loading direction, and verify the driver settings in Windows.
👉 Go to Printer Troubleshooting Guide
ZebraDesigner 3.3 Essentials & Professional
ZebraDesigner 3.3 is fully compatible with the ZD421t and includes the free Essentials edition plus a trial of the Professional version. It enables professional label layout, barcode insertion, and design flexibility.
Note: Activating the Professional version requires a valid Zebra Customer ID and License Key. Thales licensing does not support legacy keys beginning with 3467.