GK420t Desktop Printer Support
The GK420t is part of the GK Series Printer family.
This Zebra product is discontinued. The software and manuals below are provided for your convenience and Technical Support. If you require additional support, please contact a Zebra Authorized Service Provider.
APAC
Printer Discontinuation Date: December 31, 2021
Service & Support Discontinuation Date: February 28, 2025
EMEA, North, and Latin America
Printer Discontinuation Date: January 31, 2022
Service & Support Discontinuation Date: April 30, 2025
+ First Time Setup / Getting Started
The Setup guidelines below will take you to English documentation. You can access the localized User Guides in the MANUALS section.
IMPORTANT! Do not connect your printer to a computer yet!
- If you connected your printer to a computer via USB before driver installation, the printer might appear as an unknown (unspecified) device in “Devices and Printers.”
- If necessary, follow these recovery steps before proceeding to Step 1.
1. Download and install the Zebra Setup Utilities (ZSU) printer configuration utility.
- How to download and install ZSU from the DRIVERS section below.
- Windows Printer Driver v5 is included with the ZSU download. To install the driver, select "Install New Printer" on the ZSU interface and proceed with steps 12 to 15 in this article.
2. Connect the printer to a USB port on your computer and power it up.
- See how you can use Zebra Setup Utilities to configure your printer for a wired or wireless connection.
3. Load media (media usually means labels, but it also includes tag stock, receipt paper, and other things that can be printed on).
- You can watch the video in the HOW-TO VIDEOS section below.
- The media settings must match the actual media that you are using.
How to identify media type.
4. When using thermal transfer media, load the ribbon.
- You can watch the videos in the HOW-TO VIDEOS section below.
- How to find out if you have thermal transfer media?
Do a media scratch test.
- When changing the size or type of media.
- If printing issues are observed, such as skipped labels, vertical image/label drift, or media out errors.
7. The printer settings must match the actual supplies that you are using for your print job and the options on your printer. Adjust the printer settings as necessary using Zebra Setup Utilities software or Windows Printer Driver v5.
+ Drivers
If you connected your printer to the computer via USB before driver installation, follow these recovery steps before printer driver installation.
GK420t Drivers - Recommended
-
Windows Printer Driver v5
Version 5.1.17.7414
Download 14 MB View release notes
Use this driver if you need to use either CPCL or EPL printer command languages.
'ZDesigner Printer Driver' is compatible with ZebraDesigner 3 and prior versions.
OPERATING SYSTEM versions: Windows 10/11, Windows Server 2016/2019/2022 (see Release Notes for details)
How to Install Driver v5
Printer Configuration Utility
-
Zebra Printer Setup Utilities
Version 1.1.9.1325
Download 13 MB View release notes
Use this software to configure your printer after Printer Driver installation.
OPERATING SYSTEM versions: Windows 10/11, Windows Server 2016/2019/2022 (see Release Notes for details)
How to Configure Printer Settings with Zebra Setup Utilities
Other Drivers
-
OPOS Driver
Version 1.14.1.143
Download 7 MB View release notes
Use this OLE for Retail POS driver to develop applications that are compatible with the Unified POS specification. See the release notes for printer compatibility and system requirements.
OPERATING SYSTEM: Windows 10/11
Third-Party
-
Information about CUPS Driver for label printers.
OPERATING SYSTEM: Mac OS, Linux/Unix
Download 476 KB
Install CUPS Driver for Zebra Printer in Mac OS
+ Manuals
GK420t Set-Up and User Guides
-
GK420T Desktop Thermal Printer User Guide
-
GK420t Quick Start Guide
P980602-004
Download 12 MB
+ How-To Videos
GK420t videos
+ Software
+ Software Manuals
-
ZebraDesigner Pro User Guide
13857L-003 Rev. A
Download 4 MB
-
Wired/Wireless Print Servers User Guide
P1043301-006
Download 2 MB
-
ZebraNet 10/100 Internal Print Server User Guide
Download 2 MB
-
Downloading EPL Asian Fonts (en)
56963L-002
Download 591 KB
-
GK420t Quick Start Guide
P980602-004
Download 12 MB
-
ZKDU Guía del usuario (es)
P1059693-041 Rev.A
Download 1 MB
-
ZKDU Guide d'utilisation (fr)
P1059693-021 Rev.A
Download 1017 KB
-
ZKDU Guida per l'utente (it)
P1059693-051 Rev.A
Download 1 MB
-
KDU Plus User Guide (en)
980548-001 Rev. A
Download 3 MB
-
ZKDU User’s Guide (en)
P1059693-001 Rev.A
Download 1 MB
-
ZebraNet Bridge Enterprise User Guide
13743L-004
Download 2 MB
-
ZebraLink Enterprise Connector for Oracle BI Publisher User Guide
P1006951-002
Download 3 MB
-
Zebra KDU Plus - User's Manual
980548-001 Rev. A
Download 3 MB
+ Troubleshooting
+ Firmware
GK420t Firmware
-
V61.17.17Z (12/30/2013)
Latest Version
Download 2 MB View release notes
How to Find Out Printer OS (Firmware) Version
-
Firmware Download Utility (ZDownloader)
A utility that uploads Printer OS (Firmware) and Service Packs to your printer.
Download 22 MB View release notes
Upgrade Printer OS (Firmware) using ZDownloader
+ Specifications and Characteristics
+ Labels, Parts, Accessories and more
Labels, Ribbons, Tags
Printer Parts
Knowledge Articles:
Accessories
ABOUT THE PRODUCT
DISCUSSION FORUM
Discover useful answers or post a question.
REQUEST A REPAIR
Repair services for products under warranty, a service contract or through a time-and-material-based charge.
DECLARATION OF CONFORMITY
View Declaration of Conformity for Zebra products.
ZEBRA ONECARE™ SUPPORT SERVICES
Maintenance that delivers the right plan for your business goals and budget.