Zebra ZT421, 12 dots/mm (300 dpi), disp. (colour), RTC, USB, RS232, BT, Ethernet, ZPL, ZPLII
The Zebra ZT421 is a reliable midrange thermal transfer label printer built for demanding daily use in cafés, shops, and workshops — it keeps pace even when the label queue is at its longest.
About
Zebra ZT421 – Label Printing That Keeps Up With Your Day
The Zebra ZT421 is a thermal transfer label printer built to hold its own when the workload peaks. At 300 dpi (12 dots/mm), every barcode, address label, and price tag comes out sharp and scannable — no squinting, no rescans at the counter.
When You Need More From a Label Printer
In a small business, the label printer is one of those devices you expect to simply work. The ZT421 is built with exactly that in mind: a solid chassis, a colour touchscreen for quick on-the-fly adjustments, and a real-time clock that keeps timestamp labels accurate without any manual fiddling.
The maximum print width is 168 mm, and the media roll diameter goes up to 203 mm — meaning fewer mid-rush roll changes. Print speed reaches 305 mm/s, so even a large label backlog clears quickly without a queue building up behind it.
Connectivity That Fits How You Work
The ZT421 carries multiple connection options in a single unit: two USB ports, RS232, Ethernet, and Bluetooth. Wire it into your network, or use it wirelessly — whichever suits your setup. Note that an interface cable is not included, so check what you need and add one to your order.
ZPL and ZPLII emulation means compatibility with the vast majority of label design software. If you already have working label templates, they will most likely run on the ZT421 without any changes.
Specifications at a Glance
- Print method: Thermal transfer
- Resolution: 300 dpi (12 dots/mm)
- Max print width: 168 mm
- Max media width: 178 mm
- Max roll diameter: 203 mm
- Max print speed: 305 mm/s
- Display: Colour touchscreen
- Real-time clock: Yes
- Memory: 256 MB RAM, 512 MB Flash
- Connectivity: USB ×2, RS232, Bluetooth, Ethernet
- Emulation: ZPL, ZPLII
- In the box: Power cable (EU and UK plugs)
- Interface cable: Order separately
- Country of origin: China
- Warranty: 24 months
Vaivatta Can Help You Get Set Up
If connecting the ZT421 to your existing point-of-sale system or business software feels uncertain, get in touch with Vaivatta. We can handle the installation on-site or walk you through it remotely — you won't have to work through the technical details on your own.