Guides
Zebra ZD421 vs ZD411: 4-inch or 2-inch desktop printer?
The ZD421 and ZD411 are the same printer platform in two widths. They share the speeds, resolutions, buttons, lights and options, and Zebra documents them together....
Zebra ZD421 setup guide: from unboxing to first label
This guide takes a new Zebra ZD421 from the box to a calibrated first label. It covers all three versions: the ZD421t with a ribbon roll,...
Zebra ZD421 lights and errors: what they mean and how to fix them
The ZD421 has no display, so it reports problems through five indicator lights. Green means ready, amber means busy or a warning, red means the printer...
Reset a Zebra ZD421 to factory defaults
The ZD421 has two separate resets: one for the printer settings and one for the network settings. You start either with a button combination at power-up,...
Calibrate the Zebra ZD421: SmartCal and manual calibration
Calibration tells the ZD421 how long your labels are and where each one starts. Without it, the printer may skip labels, print across the gaps or...
Print 100×150 mm shipping labels on Zebra ZD220, ZD230 and ZD421
Courier portals deliver shipping labels as PDF files. With the right paper size in the driver and the right scaling when you print, a Zebra ZD220,...
