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Zebra ZD421D Direct Thermal Desktop Barcode Label Printer

SKU: ZD4A042-D01M00EZ|Model: ZD421D

The Zebra ZD421D Direct Thermal Desktop Barcode Label Printer is a reliable 4-inch desktop printer designed for high-performance label printing without the need for ink or ribbons. It features fast direct thermal printing, flexible connectivity options, and an intuitive interface, making it ideal for applications like shipping, retail, and inventory management.

Key Highlights

Fast print speed up to 6 inches per second for high throughput
Flexible connectivity with USB, Ethernet, Wi-Fi and Bluetooth options
Intuitive interface with LED status indicators and simple controls

Contact Sales

Warranty3 Years Standard

Lead Time2-4 Weeks

CertificationFCC, CE, RoHS

Product Overview

The Zebra ZD421D Direct Thermal Desktop Barcode Label Printer is a next-generation desktop printing solution designed to deliver reliable, high-quality label printing for modern business environments. Built on Zebra Technologies’ proven legacy, the ZD421D offers enhanced performance, intuitive usability, and flexible deployment options, making it an ideal choice for retail, logistics, healthcare, and office applications. Engineered with advanced direct thermal technology, the printer eliminates the need for ink or ribbons, reducing operational costs while ensuring consistent output quality.

Key Features & Capabilities

Enterprise-grade technology designed for mission-critical operations

Direct thermal printing technology

Prints labels without ink or ribbons, reducing operational costs

Fast printing performance

Delivers speeds up to 6 inches per second for efficient workflows

Flexible connectivity options

Supports USB, Ethernet, Wi-Fi and Bluetooth for seamless integration

User-friendly design

OpenACCESS� clamshell and simple interface make media loading and operation easy

Technical Specifications

Key technical details and performance specifications

Specification	Details
Dimensions	ZD411 Direct Thermal: 8.6 x 4.5 x 6.0 in (220 x 115 x 151 mm); ZD411 Thermal Transfer: 9.56 x 5.46 x 6.66 in (242.9 x 138.7 x 169.2 mm); ZD421 Direct Thermal: 8.69 x 6.98 x 5.93 in (220.8 x 177.5 x 150.7 mm); ZD421 Thermal Transfer Roll: 10.5 x 8.0 x 7.44 in (267 x 202 x 189 mm); ZD421 Thermal Transfer Cartridge: 10.0 x 8.0 x 7.0 in (254 x 202 x 177 mm)
Weight	ZD411 Direct Thermal: 2.2 lb (1.0 kg); ZD411 Thermal Transfer: 3.59 lb (1.629 kg); ZD421 Direct Thermal: 2.98 lb (1.35 kg); ZD421 Thermal Transfer Roll: 4.52 lb (2.05 kg); ZD421 Thermal Transfer Cartridge: 5.0 lb (2.3 kg)
Operating System	Link-OS
Resolution	203 dpi (8 dots/mm); 300 dpi (12 dots/mm optional)
Memory	512 MB Flash; 256 MB SDRAM
Max Print Width	ZD411: 2.2 in (56 mm) at 203 dpi, 2.13 in (54 mm) at 300 dpi; ZD421: 4.09 in (104 mm) at 203 dpi, 4.16 in (106 mm) at 300 dpi; ZD421 Cartridge: 4.09 in (104 mm)
Max Print Speed	6 in (152 mm) per second at 203 dpi; 4 in (102 mm) per second at 300 dpi
Media Sensors	Full-width movable reflective/black mark sensor; multi-position transmissive/gap sensor
Programming Languages	ZPL II; EPL 2; XML; ZBI; PDF Direct
Label Length	Minimum: 0.25 in (6.35 mm); Maximum: 39.0 in (991 mm)
Media Width	ZD411: 0.585 to 2.36 in (15 to 60 mm); ZD421 DT: 0.585 to 4.25 in (15 to 108 mm); ZD421 TT Roll: 0.585 to 4.41 in (15 to 112 mm); ZD421 TT Cartridge: 0.585 to 4.65 in (15 to 118 mm)
Media Roll Size	Max outer diameter: 5.0 in (127 mm); Core ID: 0.5 & 1.0 in standard; 1.5, 2.0 & 3.0 in optional
Media Thickness	ZD411: 0.0024 to 0.0075 in; ZD421: 0.003 to 0.0075 in
Media Types	Roll-fed or fan-fold, die-cut or continuous; tag stock, receipt paper, wristbands
Ribbon Length	ZD411: 243 ft (74 m); ZD421 Roll: 984 ft (300 m) or 243 ft (74 m); ZD421 Cartridge: 243 ft (74 m)
Operating Temperature	40° to 105° F / 4.4° to 41° C
Storage Temperature	-40° to 140° F / -40° to 60° C
Operating Humidity	10% to 90% non-condensing
Storage Humidity	5% to 95% non-condensing