Zebra ZD421 Direct Thermal Printer Smart, Secure, and Built for What's Next
The Zebra ZD421 (ZD4A042-D0EM00EZ) is a next-generation 4-inch direct thermal label printer designed for speed, security, and seamless integration. Whether you're upgrading from Zebra's GK Series or deploying a new fleet, the ZD421 delivers advanced performance with intuitive controls and modular connectivity.
Featuring 203 dpi resolution, USB 2.0, USB Host, and Bluetooth Low Energy 5 (BTLE5 - for initial setup only), this printer is built to handle high-volume label printing with precision and reliability. Zebra's Print DNA software suite ensures secure, remote management, while the five-icon LED interface and three-button control panel simplify operation.
Ideal for retail, healthcare, logistics, and manufacturing, the ZD421 is ENERGY STAR® certified and supports Zebra's full ecosystem of labels, tags, and wristbands. With field-upgradable options and future-ready architecture, it's the smart choice for growing businesses.
Key Features
- Direct Thermal Printing: No ribbon requiredcost-effective and low maintenance.
- High Resolution: 203 dpi for crisp, accurate labels and barcodes.
- Fast Print Speed: Up to 6 inches per second for high-efficiency workflows.
- Modular Connectivity: USB, USB Host, BTLE5 - for initial setup only.
- Intuitive Interface: 5 LED status icons + 3-button control panel for easy operation.
- Print DNA Suite: Includes PrintSecure, Profile Manager, and ZebraDesigner Essentials.
- Mobile Setup: BLE-enabled for Android/iOS setup via Zebra Printer Setup App.
- Compact & Durable: Dual-wall frame, OpenACCESS media loading, ENERGY STAR® certified.
- Media Flexibility: Supports roll-fed, fan-fold, die-cut, continuous, tag stock, and wristbands.
- Backwards Compatible: Supports EPL/ZPL and emulates other printer languages via Virtual Devices.
Technical Specifications
| Specification | Details |
|---|
| Model | ZD421 (ZD4A042-D0EM00EZ) |
| Print Method | Direct Thermal |
| Resolution | 203 dpi / 8 dots per mm |
| Max Print Width | 4.09 in / 104 mm |
| Max Print Speed | 6 in / 152 mm per second |
| Memory | 512 MB Flash, 256 MB SDRAM |
| Connectivity | USB 2.0, USB Host, BTLE5 |
| User Interface | 5 LED icons, 3-button panel |
| Media Width | 15 mm to 108 mm |
| Media Types | Roll-fed, fan-fold, die-cut, continuous, tag stock, wristbands |
| Media Roll Diameter | Up to 127 mm |
| Sensors | Moveable reflective/black mark, transmissive/gap |
| Operating System | Link-OS® |
| Firmware Languages | ZPL II, EPL2, XML, ZBI, PDF Direct |
| Dimensions | 220.8 × 177.5 × 150.7 mm |
| Weight | 1.35 kg |
| Certifications | ENERGY STAR®, RoHS compliant |
| Warranty | 2-Year Manufacturer Warranty |
