A current-generation 4-inch desktop label printer that prints durable, long-life labels using thermal transfer ribbon, with Bluetooth, Ethernet and USB connectivity and a modular slot for fast, secure labelling across retail, warehouse and office.
The Zebra ZD421 is a current-generation, 4-inch desktop label printer built for businesses that want modern connectivity, easy management and dependable everyday labelling. This is the thermal transfer model, which prints using a ribbon to produce hard-wearing labels that resist fading, heat and abrasion, and it also runs direct thermal media when you need it.
It prints crisp text, barcodes and logos at 203 dpi and up to 6 inches (152mm) per second, across labels up to 104mm wide. Zebra's OpenAccess design makes loading media quick and jam-free, while dual media sensors handle a wide range of label and tag stock. The ZD421 ships with a modular connectivity slot and a trio of interfaces (Bluetooth, Ethernet and USB), so it fits neatly into both standalone and networked setups.
As a thermal transfer printer it uses a ribbon plus label stock, and its easy-load ribbon system keeps media changes fast. It runs Zebra's Print DNA software suite with PrintSecure and Link-OS for simple deployment and secure management, speaks both ZPL and EPL, is ENERGY STAR qualified and is backed by a 24 Months Return to Base warranty.
Print durable carton, shipping and barcode labels that survive handling and storage.
Produce clear product, price and shelf labels on demand for shops and stockrooms.
Long-life thermal transfer asset and inventory labels that stay readable for years.
The ZD421 is Zebra's current-generation desktop printer and the modular successor to the earlier ZD420 and GK420 models, bringing a modular connectivity slot, Print DNA software and PrintSecure management to a familiar 4-inch desktop form. Its closest sibling is the Zebra ZD421 Direct Thermal model, which needs no ribbon, so it is cheaper to run for short-life labels, but its prints fade faster over time. Both share the same 203 dpi resolution, 6 ips speed, 104mm print width, modular connectivity and Print DNA software, so the choice comes down to label durability: choose this ZD421 thermal transfer model for hard-wearing, long-life labels, or the direct thermal version for everyday short-term labels like shipping and visitor passes. If you need more throughput, the premium Zebra ZD620 is the step up, with faster 8 ips printing and an optional display.
| ZD421 Thermal Transfer | ZD421 Direct Thermal | |
|---|---|---|
| Print method | Thermal transfer (ribbon) | Direct thermal (no ribbon) |
| Label durability | Long-life, fade-resistant | Short-to-medium life |
| Running cost | Labels plus ribbon | Lowest, labels only |
| Connectivity | Bluetooth, Ethernet, USB, modular slot | Bluetooth, Ethernet, USB, modular slot |
| Software | Print DNA, PrintSecure | Print DNA, PrintSecure |
| Model | Zebra ZD421 Thermal Transfer |
| Print method | Thermal transfer (ribbon); also runs direct thermal media |
| Resolution | 203 dpi (8 dots per mm) |
| Max print speed | Up to 6 in. (152 mm) per second |
| Max print width | 4.09 in. (104 mm) |
| Print colour | Monochrome |
| Programming languages | ZPL and EPL |
| Media handling | OpenAccess easy loading, easy-load ribbon system, dual media sensors |
| Interfaces | Bluetooth, Ethernet, USB; modular connectivity slot |
| Software | Zebra Print DNA, PrintSecure, Link-OS |
| Energy rating | ENERGY STAR qualified |
| Warranty | 24 Months Return to Base |
| SKU | ZD4A042-30PE00EZ |
This printer needs a ribbon and label rolls to print.
Shop ribbons & labelsThermal transfer ribbon and label rolls are sold separately so you can match the media to your application.
The thermal transfer ZD421 uses a ribbon to produce durable, long-life labels that resist fading, heat and abrasion, while the direct thermal ZD421 needs no ribbon and is cheaper to run, but its labels fade faster over time. Choose the thermal transfer model for hard-wearing asset, inventory and product labels, and the direct thermal model for short-life labels such as shipping and visitor passes.
Yes. As a thermal transfer printer it prints using a ribbon plus label stock, loaded through its easy-load ribbon system. It can also run direct thermal media without a ribbon when you need short-life labels, giving you flexibility for different jobs.
The ZD421 is the newer-generation model and the modular successor to the ZD420, which itself replaced the GK420. It keeps the familiar 4-inch desktop form but adds a modular connectivity slot and Zebra's Print DNA software suite for easier management and security.
The ZD421 includes Bluetooth, Ethernet and USB, plus a modular connectivity slot, so it works as a standalone USB printer or on a shared network. It uses the ZPL and EPL languages, so it works with Zebra's drivers and most popular barcode and labelling software.
It prints labels up to 104mm (4.09 in.) wide at 203 dpi, making it a true 4-inch desktop label printer suitable for shipping, product, barcode and asset labels.
Yes. At 203 dpi it prints crisp, scannable 1D and 2D barcodes, along with text and logos, on standard label stock.
The ZD421 handles low-to-medium label volumes comfortably across retail, office and warehouse use. For heavier throughput, Zebra's ZD620 is the step up, with faster 8 ips printing and an optional display.
The Zebra ZD421 is backed by a 24 Months Return to Base warranty. If you have any questions about setup or media, contact our team on 1300 115 808.
The Zebra ZD421 is a current-generation, 4-inch thermal transfer desktop label printer for Australian retail, warehouse and office use, supplied here with Bluetooth, Ethernet and USB connectivity and a modular connectivity slot. Using a ribbon, it prints durable, fade-resistant labels at 203 dpi and up to 6 inches (152mm) per second across labels up to 104mm wide, and it also runs direct thermal media when short-life labels are all you need. OpenAccess loading, an easy-load ribbon system and dual media sensors keep media changes fast and reliable, while Zebra's Print DNA suite, PrintSecure and Link-OS make the printer easy to manage and secure, and support for both ZPL and EPL means it drops straight into existing Zebra label formats and barcode software. As the modular successor to the ZD420 and GK420, ENERGY STAR qualified and backed by a 24 Months Return to Base warranty, it is a dependable everyday choice, with the ribbon-free direct thermal ZD421 available when you want lower-cost short-life labelling and the faster ZD620 available when you need more speed and an optional display.
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