Zebra ZD421d — 203 dpi TAA Models

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The ZD421 direct thermal advanced desktop printer delivers the features, flexibility, reliability and security customers need – today and tomorrow. Includes Zebra’s Print DNA software suite; it's easy to set up, operate, manage, maintain and secure.

Key features

Replaces the legacy GK Series and ZD420 Series, offering more functions and capabilities powered by a new innovative architecture that can run more tasks, perform more operations simultaneously and is ready for what's next.
Operates with ease with the five LED icons to take the guesswork out of printer status, and has a three-button user interface for added functionality and control.
Connectivity includes USB and USB Host standard, and optional Ethernet, Serial and dual wireless radio, Wi-Fi 6 (802.11ax) with Bluetooth 5.3 or Wi-Fi 5 (802.11ac) with Bluetooth 4.1, factory- or field-installable.
Zebra's exclusive Print DNA software suite makes it easy to get printers up and running quickly. And PrintSecure makes it easy to shield printers from cyberattacks.
Increase printer flexibility and use cases with options and accessories, including 300 dpi, desktop battery and carrying case, peeler, cutter, keyboard display unit, mounting plate, and enclosed power supply.

Part numbers

Zebra ZD421d — 203 dpi TAA Models: All 2 Models Compared
Part Number	Connectivity	Media handling
ZD4A042-D01E00GA	Ethernet + BLE	Standard (none)
ZD4A042-D01M00GA	Modular slot + BLE	Standard (none)

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Specifications

Print method	Direct thermal
Resolution	203 dpi (8 dots/mm)
Maximum print speed	6 in/s (152 mm/s)
Maximum print width	4.09 in (104 mm)
Connectivity	USB 2.0, USB Host; Bluetooth LE for the Zebra setup app; Ethernet, or a modular slot for field-installable Ethernet or Serial, by model
Display	5 status icons, 3-button interface
Media handling	Tear-off; peeler and cutter available as field-installable options
Memory	512 MB flash; 256 MB SDRAM
Media width	0.585–4.25 in (15–108 mm)
Maximum roll size	5.00 in (127 mm) OD; 0.5 in and 1.0 in cores standard; 1.5, 2.0 and 3.0 in with optional adapters
Label length	0.25–39.0 in (6.4–991 mm)
Media thickness	0.003–0.0075 in (0.08–0.19 mm); max in tear-off mode only
Media types	Roll or fan-fold; die-cut or continuous, with or without black mark; tag stock; receipt paper; wristbands
Media sensors	Full-width movable reflective/black-mark sensor; multi-position transmissive/gap sensor
Programming languages	ZPL II, EPL 2, XML, ZBI, PDF Direct
Operating system	Link-OS; Zebra DNA
Dimensions	8.69 x 6.98 x 5.93 in (221 x 178 x 151 mm) L x W x H
Weight	2.98 lb (1.35 kg)
Operating temperature	40–105 °F (4.4–41 °C)
Electrical	100–240 VAC, 50–60 Hz, auto-detect; ENERGY STAR certified; optional 2750 mAh battery
Compliance	TAA compliant
Warranty	2 years (Zebra)

Download the ZD421d-203-TAA spec sheet (PDF)

Warranty and support

Warranty: 2-year Zebra manufacturer warranty. Warranty service is handled by Zebra (zebra.com/warranty).

Defective on arrival? Contact us within 30 days of delivery and we'll arrange a replacement.

Read our full return policy

Frequently asked questions

What is the difference between the ZD421c, ZD421d and ZD421t?

The ZD421d is direct thermal only, so it needs no ribbon. The ZD421t takes standard 300 m or 74 m ribbon rolls. The ZD421c loads a 74 m ribbon cartridge in seconds, and a smart chip reports when it needs replacing. The ZD421t and ZD421c also print direct thermal without a ribbon.

Which Zebra printers does the ZD421 replace?

Zebra positions the ZD421 as the successor to the GK Series and ZD420 Series desktop printers.

Can it print 4 x 6 shipping labels?

Yes. It takes media from 0.585 to 4.25 in wide and up to 39 in long, and prints up to 4.09 in wide at 203 dpi.

What roll size and core fit?

Rolls up to 5 in outer diameter on 0.5 in or 1 in cores, and 1.5, 2 or 3 in cores with optional adapters.

What connectivity does it have?

Every ZD421 has USB 2.0 and USB Host, plus Bluetooth LE for the Zebra setup app. Ethernet, Serial and dual-radio Wi-Fi with Bluetooth are available by model or as field-installable kits.

Which programming languages does it support?

ZPL II, EPL 2, XML, ZBI and PDF Direct. The Zebra DNA Printer Emulations app adds languages from other printer brands.

What does TAA compliant mean?

This model meets the Trade Agreements Act, which US federal agencies require for most purchases: it is made or substantially transformed in the US or a designated country.

Can it run on battery?

Yes. An optional 2750 mAh battery powers a full shift at maximum print speed, and an optional carrying case takes the printer to the point of application.

What warranty does it have?

Zebra warrants ZD400 Series printers for 2 years from shipment. Zebra OneCare plans extend coverage.