GT800 Printer Initial Setup Details and Information

Article ID: 47792956



Issue / Question

How do I setup the GT800 printer for use with different types of labels?

How do I setup the GT800 printer for use with ribbon?

How do I communicate with the GT800 printer?

How do I improve the print quality on the GT800 printer?

Applicable To

GT800 printer

Resolution / Answer

GT800 Series Printer Setup Overview

The Zebra Printer can be used in a wide variety of applications and must be properly configured to function with your media. (Labels, Tags, etc.) and ribbon (if used). In addition, you will be required to set the label size, print darkness, and print speed to optimize printing. The printer is typically configured from your host device using a driver, utility/software, or sending the printer's command language (EPL or ZPL). In summary, in most instances, you will need to connect the printer to your host device to set up and configure the printer. The GT800 Printer also allows for a button flash sequence to configure darkness, print width, set defaults, and calibrate the labels. It should be noted that these configurations will be overwritten by any driver or application settings when you send your label request. Refer to Feed Button configurations:
Feed Button Modes.

Driver Considerations

IMPORTANT! If you are using a USB connection to the printer, install the driver before connecting the USB cable to the printer.

Do you need the ZebraDesigner Driver? 
The ZebraDesigner Driver is used when a Windows Application requires a driver to print to the printer. (The driver converts the Windows Application output to the printer's language.) If you are using a label design software from a non-Zebra vendor check with that vendor to see if they provide their own driver before installing and using the Zebra Designer Driver.  In addition, if you are using an application that directly outputs the printer's command language (EPL/ZPL) then do not use a Zebra Printer Driver. For these applications either send the label files directly to the printer or use a Generic Text Driver. 

There are 6 sections in this article: 


IMPORTANT! All printer settings can be impacted by commands from a mismatched or misconfigured driver or software application. A printer that is functioning fine after setup but fails or indicates an error after label requests are received is most likely affected by the host side misconfiguration of the driver or printer software settings. The host device that generates the printer commands for printing typically has a setup configuration that sends these as commands to the printer. Make sure all settings match the printer settings to avoid intermittent issues.

Media Related Settings and Calibration 
A note regarding printer setup and configuration 
The GT800 printer can be configured by your driver, host application, or a utility. In these examples, we will use the Zebra Designer Driver to configure the printer. (The configurations are sent when printing using the driver or printing the driver test page) If you are using a non-Zebra application/driver/label software determine the methods used to set these configurations and be aware the terminology for each setting in your environment may be different. 

Understanding your media
The Zebra Printer supports the use of many types and shapes of labels/tags and knowing your media detail is important for proper configuration.
Here are the details you should know for printer media setup and configuration. For our examples, we are using the ZebraDesigner Driver to show the configuration selections for each topic discussed below.  

NOTE When using the ZebraDesigner Driver the configurations are sent to the printer when you request to print a label. (Example: printing the Windows Test page will send the printer configurations) 

Media Related Configurations

There are 3 Selections for Media Type (Tracking Mode)  

  • Default - Web Sensing (gap)  

  • Continuous 

  • Mark Sensing (Black Mark) 

If you are using media with an inter-label gap or a center hole set the Tracking Mode for Web Sensing.
If you are using media with a black bar or mark set the Tracking Mode for Mark Sensing.

There are 2 Selections for Print Method (Media Type) 

  • Default - Thermal Transfer (Using Ribbon) 

  • Direct Thermal (No Ribbon) 


There are 2 selections for Print Mode: 

  • Default - Tear Off 

  • Peel (Dispense) 

This is related to the label presentation after printing and is limited to the options you have installed. The GT800 Printer supports Tear Off, and Peel (Dispense Option Required) 
Media Loading: The media must be properly loaded for the Print Mode you intend to use. 

Understanding the Media Sensors
The printer comes with sensors for label tracking based on the Media Type used. There is a reflective and transmissive sensor positioned slightly off-centered in the media path. The sensor you will use requires configuration of the Tracking Mode (Mark/Web/Continuous) setting to function with the media you are using. A hole or black mark must pass over the media sensor's position to function correctly.

See the GT800 Printer Sensor:

Calibrate the printer for the media.

The printer does not measure the label length unless the default Power Up or Head Close values are altered to either Length or Calibrate. There are two calibration methods to consider if the labels fail to calibrate properly.

There are 2 Calibration Methods to consider if the labels fail to calibrate properly. 

  • 2 Flash Feed Button sequence: To find the label gap and measure the label. 

  • 7 Flash Feed Button: To perform a deeper analysis of the gap or mark and will produce a media sensor profile.

Performing the Manual Calibration Procedure (Seven Flash sequence) G-Series Feed Button Modes  


Ribbon Setup
This applies to the GT800 when using applications where the use of ribbon is required. This is referred to as Thermal Transfer printing where an inked ribbon is used to produce the image on the label.

Ribbon Basics This explains the ribbon types and typical darkness and speed selections. Refer to: Ribbon Basics.

Ribbon Loading - The ribbon is detected using a reflective sensor and requires the ribbon have a reflective trailer to detect a Ribbon Out condition. When a Ribbon Out condition is detected the Feed Button will flash red.

See the ribbon sensor

See Ribbon LoadingGX420t/GX430t User Guide: Loading Transfer Ribbon.

Ribbon Configuration: Selecting Thermal Transfer if you are using Ribbon, Direct Thermal if you are not using Ribbon.


Print Quality
Print quality is a product of proper printer setup and the use of compatible media for the application. The 4 impacting factors to consider are:

  • The Media and Ribbon (if used) capabilities.

Not all media is the same when it comes to being compatible with your application or needs. Printing speed, the durability of the image or media, and the environment are just a few factors to consider when determining the printer setup for the application. Trying to compensate for poor media compatibility by using high printhead pressure and/or darkness settings can impact your printer’s printhead life. 

  • Printhead Pressure 

There are no printhead pressure adjustments on the G-Series printer. Assure the printhead properly latches and the platen is not worn as these are the impacting items when printhead pressure may be an issue. 

  • Print Speed

The printer is capable of printing at multiple print speeds. The speed selection takes the media/ribbon (if used) compatibilities into consideration since if high Darkness settings are required to achieve acceptable print then slower rates should be used. If your application requires the highest print speeds available be sure your media supplier has recommended the correct media for your application. 

  • Print Darkness

Print Darkness (also may be referred to as Density or Burn Temperature) is a user-adjustable setting. The Darkness can be set using the Feed Button flash sequence. Refer to:
G-Series Feed Button Modes.

In addition, the darkness can be altered using the Darkness Switch. Read more at GT800t User Guide (en): ZPL Configuration Status to Command Cross-reference.

NOTE Applications and the  ZebraDesigner Driver (Printing Preferences - Options - Darkness) will alter printer settings to assure you have properly configured any Darkness-related settings on your system. Refer to this article for ZebraDesigner Driver example: ZebraDesigner Driver Printer Configuration Printing Preferences vs Printing Defaults 

Avoid overheating the ribbon as it can melt if set too high. Vary the darkness to produce the best print quality. 


Communications Setup
A Zebra-compatible driver must be installed before connecting the printer. Read more at USB Communication.

A straight-through cable is required for connection to a PC. This is the same as the EPL 2844 printer.  All serial communications parameters must be matched on the printer and host. GC420t User Guide: Connecting your Printer to a Computer.

The printer’s parallel interface uses the IEEE 1284-A to 1284-B parallel interface cables. The host connector has a DB-25 pin male connector. The printer connector is a Centronics-style connector.

Wired Ethernet Network 
Printers that include a ZebraNet Print Server option can be connected to an Ethernet Network. If your network supports DHCP the printer can obtain an IP Address when the cable is connected. Configuring a printer with the ZebraNet Option, refer to ZebraNet Print Server - Install, Setup, Configure, and Troubleshoot on a Wired Network.

You can use one of the following Utilities to set specific parameters or set a permanent IP address for your printer queue.

  • ZebraNet Bridge

Can be used to discover and assign the desired network settings. For more information, refer to this article: Discover and Configure TCP/IP Settings Using ZebraNet Bridge.

  • The Zebra Setup Utility

Has a network setup wizard that can be used to configure your printer for a wired or wireless network. For more information, refer to this article: Configuring Connectivity for Wired or Wireless Networks using the Zebra Setup Utility.


Printing App or Program
Zebra printers are command interpretation engines using printer commands to define the printed images. The printer must receive the commands in the supported printer language such as ZPL, EPL, CPCL. The printer will not respond if the label format received does not contain the required programming commands for label printing. Programming commands can be entered into a file and communicated to the printer, received as an output through a driver from an application, or created using one of many Zebra Label Software packages on the market. 
For a general overview of this information. Refer to: Label Format Creation.

Line Mode
The GT800 printer does not support Line Mode

Utilities and Drivers
If you are not using the ZebraDesigner Driver for your printing application, you can use one of the following utilities for printer configuration. If you are using a non-Zebra application or driver, consult with the vendor for details on printer setup and configuration. 

Application or Utility  Comment 
Zebra Setup Utility 
Zebra Setup Utilities: Downloading ZSU and Configuring Printer Settings   
This is a free Windows-based utility that features a printer setup wizard for simple printer or network setup.   
ZebraNet Bridge  
Setup or Modifying a Zebra Printer Configuration Using ZebraNet Bridge       
This is an enterprise application for network printer management but is free to use for configuring a network or locally connected printer. 
ZebraNet Print Server Webpage 
Using the ZebraNet Print Server Web Page to Configure the Printer   
The ZebraNet Print Server has a Webpage that is accessed from a browser when you enter the printer's IP Address. Printer configurations can be viewed and altered. 
ZebraDesigner Driver
Configure or Modify Basic ZebraDesigner Driver Settings Information
If you are using the ZebraDesigner Driver there is a Printing Preferences section that allows you to configure your printer. 


Helpful Information 

Identify the type of media and ribbon: Media and Ribbon Identification
ZebraDesigner Driver Printer Configuration: ZebraDesigner Driver Printer Configuration Printing Preferences vs Printing Defaults

The following are source resources for Feed Button Modes:



+ Product Codes

  • GT800 Desktop Printer