The ZD420 is no longer available. We instead suggest the TSC DA220.

Zebra ZD420D

Direct Thermal Label Printer

The ZD420 leads its printer class in deployment and management simplicity, ease-of-use, application flexibility and total cost of ownership
(TCO). The next generation in Zebra’s advanced desktop line, the ZD420 replaces Zebra’s popular GK420 Series.

Compact Design Filled with Powerful Features.

You get an easy to use clamshell design and an intuitive interface. Field-installable connectivity and media handling options allow you to purchase what you need today, yet easily add new features on site to meet tomorrow’s needs. Link-OS® supports our powerful Print DNA suite of applications, utilities and developer tools that deliver a superior printing experience through better performance, simplified remote manageability and easier integration. Available in direct thermal and thermal transfer and healthcare-specific models, the ZD420 is ideal for a wide range of applications. The ZD420 — when ease of use, flexibility and management simplicity matter.



Ideal for these applications:

  • Government - documents management, evidence tracking
  • Healthcare - laboratory specimen and blood bank labeling 
  • Retail - price labeling and receipt printing
  • Manufacturing - light-industrial work-in-process, product and shipping labeling
  • Transportation & Logistics - boarding tickets, bag tags, parking passes

Standard Features:

  • Thermal Transfer or Direct Thermal print method
  • ZPL and EPL programming languages
  • 5 Status Icon, 3 button user interface
  • USB connectivity
  • OpenACCESS™ for easy media loading
  • Dual-wall frame construction
  • ENERGY STAR qualified


  • 203 dpi/8 dots per mm
  • Optional 300 dpi/12 dots per mm
  • Resolution can be factory installed or changed on site
    via accessory kits. Resolution can be changed from
    300 dpi to 203 dpi, as well as from 203 dpi to 300 dpi


  • 512 MB Flash, 256 MB SDRAM (standard)

Print width

  • 4.09 in./104 mm for 203 dpi
  • 4.27 in./108 mm for 300 dpi

Print length

  • 991 mm 

Print speed

  • 6 in./152 mm per second (203 dpi)
  • 4 in./102 mm per second (300 dpi)

Media sensors

  • Full width, moveable reflective/black mark sensor; multi-position transmissive/gap sensor

Media characteristics

Maximum Label Length
39.0 in./991 mm
Media Width 0.585 in./15 mm to 4.65 in./118 mm
Media Roll Size Maximum outer diameter: 5.00 in./127 mm
Core inner diameter: 0.5 in. (12.7 mm) and 1.0 in.
(25.4 mm) standard, 1.5 in. (38.1), 2.0 in., (50.8 mm)
and 3.0 in. (76.2 mm) using optional adapters
Media Thickness 0.003 in. (0.08 mm) min.; 0.0075 in. (0.1905 mm) max.
Media Types Roll-fed or fan-fold, die cut or continuous with or
without black mark, tag stock, continuous receipt paper, and wristbands
Ribbon Outside Diameter
2.6 in./66 mm (300 m); 1.34 in./34 mm (74 m)

Operating characteristics

  • Operating Temperature: 40° F/5° C to 105° F/ 41° C 
  • Storage/Transport Environment:-40° F/-40° C to 140° F/60° C
  • Operating humidity: 10% to 90% non-condensing RH
  • Storage humidity: 5% to 95% non-condensing RH

Agency approvals

Physical Characteristics

Length 8.69 in./220.8 mm
Width 6.98 in./177.5 mm
Height 5.93 in./150.7 mm
Weight 3.6 lb/ 1.6 kg

Optional software
  • ZebraDesigner™ Pro—An intuitive, easy-to-use software program for creating complex label designs (option)
  • ZebraDesigner—Offers basic features for simple label design
  • ZebraDesigner Driver—The most powerful driver available from Zebra

Communication and interface capabilities

  • Centronics® parallel (36 pin) connector ports
  • RS-232 Serial interface
  • USB V1.1 interface, bi-directional


  • ZPL II® - Zebra Programming Language provides sophisticated label formatting and printer control.
  • EPL2™—Eltron Programming Language with Line Mode simplifies label formatting and enables format compatibility with legacy applications

Barcode symbologies

  • Bar Code Ratios: 2:1 (non-rotated) and 3:1
  • Linear Bar Codes: Code 11, Code 39, Code 93, Code 128A, B & C (User selectable/Auto), UCC/EAN-128, Code 128, UPC-A, UPC-E, EAN-8, EAN-13, EAN-14, UPC-A and UPC-E with EAN 2 or 5 digit extensions, UPC-E with 2 and 5 add on, Plessey, POSTNET, Standard 2 of 5, Industrial 2 of 5, Interleaved 2 of 5, LOGMARS, MSI, Codabar, and GS1 DataBar™ (formerly RSS), Postnet (5, 9, 11 & 13 digit) Japanese Postnet, Plessey (MSI-1), MSI-3, German Post Code, RSS-14 (limited, truncated, stacked).
  • 2-Dimensional: PDF417 (MicroPDF-417 and MacroPDF-417), Code 49, Maxicode, Codablock, Data Matrix, QR code, and Aztec

Fonts and graphics

  • 16 resident expandable ZPL fonts
  • One resident scalable ZPL font
  • 5 resident expandable EPL2 fonts
  • Supports user-defined fonts and graphics - including custom logos

Electrical specifications

  • Auto-ranging external power supply with C7 type connector
  • Output: 20 VDC, 2.5A
  • Input: 100-240 VAC, 50-60 Hz

Please Note: specifications and options vary according to printer model and are subject to change without prior notice.

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