Zebra GX420D direct thermal printer

Code: Zebra GX420D

The Zebra GX420D is no longer available. We instead suggest the TSC TX200.


Zebra GX420D

Direct thermal printer


The best-in-class GX420D direct thermal printer offers the widest range of features, and fast 6 inches per second print speed to meet all your low- to medium-volume printing requirements. The GX420d has a sleek and compact design, boasts the smallest footprint in a 4-inch desktop printer, and supports a variety of applications and industries.

The GX420D comes standard with EPL and ZPL programming languages and triple connectivity for easy integration into existing systems. For additional flexibility, 10/100 internal Ethernet is also available. Well-suited to any industry and with options such as an adjustable media sensor, cutter and peeler, the reliable GX420d desktop printer is a smart investment that’s always a perfect fit.


The Zebra GX420D is ideal for many application including:

  • Retail / Price marking, Gift registry, coupon and receipt printing, Pharmacy prescription labeling
  • Healthcare / Specimen labeling, Patient tracking
  • Manufacturing / Light-industrial work-in-process and product labeling
  • Security / Visitor ID, Evidence tracking, Parking passes
  • Travel & Hospitality / Boarding passes, Bag tags, Ski lift tickets


Zebra GX420D direct thermal printer benefits

  • Best value in a desktop printer
  • Wide range of features and options
  • Built for ease-of-use and durability

Standard features

  • Print methods: Thermal transfer or direct thermal
  • Programming language: EPL and ZPL are standard construction: Dual-wall frame
  • Tool-less printhead and platen replacement
  • OpenACCESS™ for easy media loading
  • Quick and easy ribbon loading
  • Auto-calibration of media
  • Triple connectivity: USB, parallel, serial

Print speed 

  • 152 mm per second

Print width

  • 104 mm

Print lenght

  • 990 mm


  • 203 dpi


  • Standard: 8 MB SDRAM (3 MB available to user); 4 MB Flash (1.5 MB available to user)
  • Optional: 64 MB Flash (68 MB total) Flash with RTC

Media sensors

  • Standard: Fixed reflective and transmissive sensors
  • Optional: Adjustable reflective black line sensor (GX models)

Media characteristics

  • Maximum Label and Liner Length
  • Maximum non-continuous: 39”/990 mm
  • Maximum Label and Liner Width 0.75”/19 mm to 4.25”/108 mm
  • Maximum Media Roll Size 5”/127 mm O.D.
  • Media Thickness 0.003”/0.08 mm to 0.0075”/0.19 mm
  • Media Types Roll-fed or fan-fed, die-cut or continuous direct thermal labels with or without black lin

Networking and connectivity 

  • Ethernet—10/100 internal (optional) offered in combination with USB and serial interface (replaces parallel port)
  • Wireless—802.11 b/g or Bluetooth® (optional) with LCD display offered in combination with USB and serial interfaces 

Fonts and character sets

  • 16 resident expandable ZPL II bitmap fonts
  • One resident scaleable ZPL font
  • Five resident expandable EPL2 fonts
  • Native open type font support
  • Unicode™ compliant for multi-language, ondemand thermal printing

Barcode symbologies

  • Barcode Ratios: 2:1 (non-rotated) and 3:1
  • Linear Barcodes: Codabar, Code 11 (ZPL), Code 128, Code 39, Code 93, Code 93, EAN-13, EAN-8, EAN-14 (ZPL), German Post Code (EPL), Industrial 2-of-5 (ZPL), Interleaved 2-of-5, Japanese Postnet (EPL), ISBT-128 (ZPL), Logmars (ZPL), MSI, Plessey, Postnet, GS1 DataBar (RSS-14), Standard 2-of-5 (ZPL), UCC/EAN-128 (EPL), UPC and EAN 2 or 5 digit extensions (ZPL), UPC-A, UPC-A and UPC-E with EAN 2 or 5 digit extensions, UPC-E, and GS1 Databar (formerly RSS)
  • 2-Dimensional: Codablock (ZPL), Code 49 (ZPL), Data Matrix, MaxiCode, QR Code, PDF417, MicroPDF417, Aztec (For EPL and ZPL except where noted)

Physical characteristics

  • Width: 171mm
  • Depth: 209mm
  • Height: 152mm
  • Weight: 1.4kg (of printer only: no media or options)

Options and accesories

  • Dispenser—label peel and present with label present sensor
  • ZebraNet® 10/100 Print Server—Internal Ethernet for network communication and printing
  • Bluetooth wireless, includes LCD for visual communication—GX models only
  • 802.11b/g wireless radio, includes LCD for visual communication—GX models only
  • Adjustable media sensor for black line media— GX models only
  • Cutter for various media types—GX models only
  • 300 dpi print resolution printing for fine detail and crisp images (GX430t™)
  • 64 MB Flash memory with real-time clock (for total of 68 MB)—GX models only
  • Font Packs—Asian and other international font kits
  • KDU Plus™ and KDU™ keyboard display units for stand-alone printing solutions
  • Interface cables and adapters

Communication and interface capabilities

  • G-Series models triple interface standard
  • RS-232 auto-sensing serial interface, DB-9
  • USB V1.1, bi-directional
  • Centronics® parallel
  • Ethernet—10/100 internal (optional) offered in combination with USB and serial interface (replaces parallel port)
  • Wireless—802.11 b/g or Bluetooth (optional) with LCD display offered in combination with USB and serial interfaces (replaces parallel port)— GX models only

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

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