GT800 Printer Calibration

GT800 Printer Calibration

Article ID: 59362469



Topic or Information

GT800 Series Printer Calibration

Applies To

GT800 Printer


This information is useful for resolving issues such as: 

  • Feed Button Red Light Flashing
  • Prints, then skips a label or is skipping labels
  • Print is overlapping onto next label
  • Print position is drifting up and down on the labels
  • Labels stop printing in random locations
  • Prints labels then the red light starts to flash

 Common Issues and Resolutions

Problem Resolution

Flashing Red Light

  • Check Media and Ribbon (if used) Loading 
    - Loading for Tear Off Read More>>
    -Loading for Peel Mode Read More>>  

    - Ribbon Loading
  • Verify the correct setting is configured for the media type Read More>>
    - Use the MARK Sensor for media with a black bar on the backing
    - Use the GAP/NOTCH (Transmissive) Sensor setting for gap, notch or hole media
  • Perform Calibration 
    - Try performing the two flash calibration procedure Read More>>
    - If the above doesn't fix the issue perform Manual Calibration Read More>>
  • Try Defaulting the printer  Read More>>
    Default settings are non-continuous web so you'll have to reconfigure if using black mark media. 
  • If the problem persist a Media Sensor Profile can be sent to Tech Support for analysis Read More>>

    Note: Press the FEED Button after calibrating. If one label feeds each time pressed then the printer is properly calibrated. Verify Software/Driver settings are not changing the calibrated values or printer configurations.
Labels are skipping or 
the print image is wandering                                                      
  • Check Media Loading and assure the guides are keeping the media aligned  
    - Loading for Tear Off Read More>>
    -Loading for Peel Mode Read More>>  
  • Verify the printer is set to the correct Media Type. If set to Continuous the printer will not track Top-of-Form. Read More>
  • Verify the labels are compatible with the media specifications 
    - Media Width 19.5mm/0.75" to 114mm/4.49"
    - Media Length 6.5mm/0.25" to 991mm/39"
    - Roll size 127mm/5" O.D. with a 25.4mm/1.0" to 38mm/1.5" Core
    - Maximum Thickness 0.08mm/.003" to 0.19mm/0.007"
  • Press the FEED Button. If one label feed each time pressed, check your label format or Driver/Software for the source of the problem.
  • Try Defaulting and verify printer has calibrated correctly Read More>>
  • Perform Manual Calibration
  • If the problem persist a Media Sensor Profile can be sent to Tech Support for analysis Read More>>


Additional Information

A note regarding printer setup and configuration 

The GX-Series 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. 

1. Understanding your media

The Zebra Printer supports the use of many types and shapes of label/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. (i.e. printing the Windows Test page will send the printer configurations)

Media Related Configurations

>Media Type (Tracking Mode) - Selections - Continuous, Web Sensing (gap), and Mark Sensing (Black Mark). Default is Web Sensing 

ZebraDesigner Driver (Printing Preferences - Advanced Setup - Tracking Mode) Read More>>

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.

Helpful Info - Media identification details Read More>>

>Print Method (Media Type) - Selections - Thermal Transfer (Using Ribbon) or Direct Thermal (No Ribbon) – Default - Thermal Transfer

ZebraDesigner Driver (Printing Preferences - Advanced Setup - Media Type)   Read More>>

>Print Mode - Selections-  Tear off, or Dispense Mode (Peel)  – Default is Tear off  

This is related to the label presentation after printing and limited to the options you have installed. The GT800 Printer  supports Tear Off and Peel (Dispense Option Required).  Read More>>

ZebraDesigner Driver (Printing Preferences - Advanced Setup - Operation Mode)   Read More>>

>Media Loading - The media must be properly loaded for the Print Mode you intend to use.

 - Loading for Tear Off Read More>>
  -Loading for Peel Mode Read More>>  

2Understanding 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. An optional adjustable black mark sensor is available. 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 Sensors. Read More>>

3. 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.

- The 2 Flash sequence will find the label gap and measure the label.

Performing the Calibration Procedure (Two Flash sequence) Read More>>

- The 7 button flash will perform a deeper analysis of the gap or mark and will produce a media sensor profile. 

Performing the Manual Calibration Procedure (Seven Flash sequence) Read More>>

Note: The team Media = Labels, tags, card stock and so on. In summary the supplies you use in the printer

See Printer setup details for proper printer configuration settings and explanation of printer related terminology Read More>>

+ Product Codes

  • GT800 Desktop Printer