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Professional Labelling & Printing Solutions

Zebra GK420D Manual PDF and User Guide

Zebra GK420D ManualThe Zebra GK420d model is the best value in a basic desktop thermal printer and provides direct thermal printing at speeds up to 5 ips (inches per second) at a 203 dpi (dots per inch) print density.

The GK420d supports both ZPL and EPL Zebra printer programming languages and a wide variety of interface and feature options.

The GK420D - G-Series™ printer features:

  • Automatic printer language detection and switching between ZPL and EPL programming and label formats.
  • OpenAccess™ design for simplified media loading.
  • Color-coded operator controls and media guides.
  • Resident scalable font, supports font download, Unicode fonts and resident bitmap fonts.
  • Improved printer performance: faster print speeds, 32-bit processor, and VCSEL laser media sensing.
  • Printhead test and maintenance reporting.
  • The G-Series direct thermal printer models also include support for Line Mode printing to support EPL1 legacy programming based printing applications.

The GK printers offer basic printer options:

  • Label Dispense (Peel-Off)
  • Internal 10/100 Print Server and Ethernet Interface

This users guide provides all of the information you will need to operate your printer on a daily basis and installing the Zebra GK420D Driver.

To create label formats, refer to your programming guides or label design applicationsb such as Zebra Designer.
Your printer, when connected to a host computer, functions as a complete system for printing labels and tags.

Note • Many printer settings may also be controlled by your printer’s driver or label design software. Refer to the driver or software documentation for more information.

Download The Zebra GK420D PDF Manual / User Guide

Zebra GK420D ManualThis Manual / User Guide is intended for use by any person who needs to operate or to troubleshoot problems with the printer.


The Zebra GK420D Manual is set up as follows:

Introduction on page 1 - This section describes what you get in your shipping box and provides an overview of printer features. This section also has procedures that describe how to open and close the printer and report any problems.

Getting Started on page 9 This section describes how to set up your printer for the first time and use the most common operating procedures for loading media.

Print Operations on page 21 This section provides media and print handling, font and language support, and the set up of less common printer configurations.

Printer Options on page 39 This section covers the common printer options and accessories with brief descriptions and how to get you started using or configuring your printer option or accessory.

Maintenance on page 49 This section provides routine cleaning and maintenance procedures.

Troubleshooting on page 59 This section provides information about printer error reporting that you might need for printer troubleshooting. GK420D flashing status lights. Assorted diagnostic tests are included.

Appendix on page 71 This section provides additional interface information and wiring diagrams to assist with printer to host system integration (typically a PC).