Identifying G Series Printers - Original and Enhanced Version Item Numbers

Article ID: 11402970



Topic or Information

Identifying the Standard and Enhanced version of the G-Series Printers

Applies To

GX-Series and GK Series Printers


Information includes:

  • Unable to downgrade firmware on a printer.
  • Determine differences in the parallel port.
  • Identifying a printer with a Rev 2 Logic Board
  • Revision 2 changes to the MLB
The enhanced G-Series desktop printers include the following new features: 
  •  We’ve replaced the original parallel port on the GX-Series models with a Centronics parallel port, and added this port to the GK-Series models as well. This more common parallel port is the same as the 2844/2844-Z and 3842/3844-Z printers, so customers using these printers can reuse their current cables when migrating to the enhanced G-Series.
  • Now the GK-Series models include triple connectivity at no extra cost. These printers will come standard with Serial, USB and Centronics parallel connectivity.
  • You already know the G-Series has EPL and ZPL programming languages pre-installed. Now, a new auto-sensing EPL/ZPL serial port uses smart technology to automatically detect whether an EPL or ZPL serial cable is plugged in, and sets the printer to function accordingly.
  •  We are re-introducing wireless on the desktop category. The GX-Series models will offer an optional 802.11 b/g wireless radio interface that includes an LCD user interface.
  • The enhanced G-Series printers are ENERGY STAR qualified. The ENERGY STAR symbol identifies products that are among the most energy-efficient set by the U.S. Environmental Protection Agency.  

Discontinuance of Current G-Series

The current G-Series desktop printers will be discontinued and replaced with the enhanced G-Series.  An example of the new configuration part numbers are noted below.
User-added image
Notice the additional character -   2.  To view the full configuration options, see the following link:
GK Series Configurator  Read More>>
GX Series Configurator  Read More>>


 The first release of firmware for the Enhanced G Series was Vx.17.9Z.  Do not attempt to downgrade to firmware older than Vx.17.9Z.  The printer will not accept older versions of firmware.

+ Product Codes

  • G-Series GK Desktop Printers
  • G-Series GX Desktop Printers
  • GK420 Healthcare Desktop Printers
  • GK420d Desktop Printer
  • GK420d Healthcare Desktop Printer
  • GK420t Desktop Printer
  • GK420t Healthcare Desktop Printer
  • GX420Rx Desktop Printer
  • GX420d Desktop Printer
  • GX420t Desktop Printer
  • GX430d Desktop Printer
  • GX430t Desktop Printer