Zebra
ZT421
Industrial Printing – Wide-Format with RFID Capability
The Zebra ZT421 is a rugged 6-inch wide industrial printer, available in both standard and RFID-enabled versions. Built for high-volume workflows, it delivers print resolutions of 203 or 300 dpi, speeds up to 12 inches per second (305 mm/s), and a full-metal frame with side-loading media. Whether you need pure label printing or integrated RFID encoding, the ZT421 series offers strong performance, scalability, and durability.
Wide Media Capability — 6.6 in / 168 mm print width is ideal for shipping, cartons, compliance labels, and pallet tags.
Flexible Resolution Options — Supports both 203 dpi and 300 dpi for general label work or finer detail as needed.
RFID-Enabled Option for Encoding — The RFID variant includes UHF EPC Gen2 / ISO 18000-63 encoding (adaptive encoding tech), enabling label + tag printing in one device.
Durable Industrial Build — All-metal frame, side-loading supplies path, large 4.3-inch colour touch screen, viewing window: built for tough conditions.
Rich Connectivity & Expandability — Standard interfaces include USB, Serial, Ethernet, Bluetooth 4.1; options for WiFi, dual USB Host; field-installable RFID on applicable models.
Strong Media & Ribbon Handling — Handles rolls up to ~203 mm (8 in) outer diameter; supports multiple media types; reliable printing with minimal setup.
| Feature | Standard ZT421 | ZT421 RFID Model |
|---|---|---|
| Print Methods | Thermal Transfer & Direct Thermal | Same, with addition of RFID encoding for enabled versions |
| Print Width | 168 mm (≈ 6.6 in) | Same width |
| Max Print Speed | Up to 12 ips (305 mm/s) at 203 dpi; lower at 300 dpi | Same maximum; encoding overhead may reduce throughput depending on tag density |
| Resolution Options | 203 / 300 dpi (600 dpi may be model/region-limited) | Same |
| RFID Capability | Not included in standard model | UHF EPC Gen2 / ISO 18000-63; adaptive encoding; field/factory installable; supports tag types for labels & on-metal where offered. |
| User Interface | 4.3″ full-colour touch display; clear viewing window; coloured threading guides; side-loading covers. | Same UI; RFID model adds controls/settings for encoding & tag calibration. |
| Memory & Processor | 256 MB RAM, 512 MB flash (standard) | Same base memory; RFID model firmware includes encoding tools. |
| Physical / Dimensions / Durability | 495 x 336 x 324 mm; ~18.14 kg (40 lb); metal frame; operating temp ~5-40 °C | Same build and environment specs |
| Connectivity | USB 2.0, RS-232, 10/100 Ethernet, Bluetooth 4.1; dual USB host ports; optional WiFi & other modules. | Same plus whatever is needed for RFID (such as antenna, encoder) |