Zebra ZD421D 203/300DPI - 4" Direct Thermal Desktop Label Printer

What printing technology does the Zebra ZD421D use?

The ZD421D is a Direct Thermal printer, meaning it prints directly onto heat-sensitive labels without requiring ink, toner or ribbons.

What print resolutions are available?

The ZD421D is available in both 203 DPI and 300 DPI versions. The 203 DPI model is ideal for standard shipping and barcode labels, while the 300 DPI model provides sharper text, smaller barcodes and higher-detail graphics.

What is the maximum print width?

The maximum print width is 104 mm (4.09") on the 203 DPI model and up to 108 mm (4.27") on the 300 DPI model.

How fast can the printer print?

The 203 DPI version prints at speeds up to 152 mm/sec (6 ips), while the 300 DPI version prints up to 102 mm/sec (4 ips).

What label sizes can the ZD421D handle?

The printer supports media widths from 15 mm up to 112 mm and label lengths up to 991 mm, making it suitable for product labels, asset tags, warehouse labels and shipping labels.

What ribbon sizes are supported?

The ZD421D is a Direct Thermal printer and does not require ribbons.

What connectivity options are available?

Standard models include USB connectivity, with optional upgrades available for Ethernet, Serial, Wi-Fi and Bluetooth connectivity depending on configuration.

How much memory does the printer have?

The ZD421D includes 512 MB Flash memory and 256 MB SDRAM, allowing it to handle complex label formats, graphics and multiple fonts efficiently.

What media types can the printer use?

The printer supports die-cut labels, continuous labels, tag stock, fan-fold media, black mark labels, receipt paper and wristbands.

Does the printer support cutters and peelers?

Yes. Optional field-installable cutter and peeler/dispenser modules are available to automate label handling and improve productivity.

What is the maximum roll size?

The ZD421D supports media rolls up to 127 mm (5") in outside diameter.

Is the ZD421D compatible with older Zebra printer languages?

Yes. The printer supports ZPL II, EPL2, XML and PDF Direct, making migration from older Zebra printers straightforward.

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