Power Save Mode for Energy Star Compliance affects Wireless Communications Response

Article ID: 74554361



Topic or Information

Wireless communications appears slower to respond after updating firmware or using firmware later than those described below

Applies To

GK420™, GT800™, GX420™, GX430™ 

GT800 Series – V70.17.16Z or later

GK420 Series – V61.17.17Z or later

GX420 Series - V56.17.17Z or later


The above printer firmware versions were enhanced to support a power saving mode that affects the Wireless Radio by powering off during periods of inactivity. The act of coming back online takes time that may affect the response. 

Taking the printer out of power save mode will keep the Wireless Radio Powered on. The default is "best" 


A SetGetDo command is used to turn the power save off. 

To view the present setting use the getvar command

! U1 getvar "wlan.power_save" 

To turn the power save off use the setvar command

! U1 setvar "wlan.power_save" "off"

This setting is saved and will remain unless set back to "best" or if the printer is defaulted.


+ 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
  • GT800 Desktop Printer
  • GX420Rx Desktop Printer
  • GX420d Desktop Printer
  • GX420t Desktop Printer
  • GX430d Desktop Printer
  • GX430t Desktop Printer