Restoring Factory default settings with Mobile Printers

Article ID: 55080426

Issue / Question

There is no quick default that can be done on Zebra Mobile Printers due to their dependence on files stored in the printer's memory. Instead, a set of parameters can be reset by applying the appropriate command sequence.

Applicable To

All Zebra Mobile Printers

Excludes: ZQ110, EM220, EM220II

Resolution / Answer

Requires ability to send files/commands to the printer as well as communication with the printer via USB, Serial, Wireless, or Bluetooth.


There isn't a single key sequence or command that restores the mobile printers parameters to their factory default configuration.

There are however, groupings of parameters that can be defaulted by sending commands to the printer.  These groupings include wlan, ip, bluetooth, display and power.


Below are the command sequences that can be applied to default the parameters referenced above:


! U1 do "device.restore_defaults" "bluetooth"
! U1 do "device.restore_defaults" "ip"
! U1 do "device.restore_defaults" "wlan"
! U1 do "device.restore_defaults" "power"
! U1 do "device.restore_defaults" "display"

The zpl parameters can be restored to their factory defaults on the P4T series, RW series and QLPlus series by deleting the ZPL_CFG.CFG file.  This binary file contains the zpl settings and will be recreated automatically when restarting the printer.  The newly created file will contain the binary equivelant of the factory zpl default settings.

The QLn series and the iMZ allows the ^JUF and ^JUN command to be sent to restore parameters to their factory default condition.


Please note that the iMZ uses line print mode by default. The following command may need to be adjusted to set the iMZ back to ZPL if necessary.
! U1 servar "device.languages" "zpl"
Helpful Information

+ Product Codes

  • EZ320 Mobile Printers
  • Mobile Printers
  • P4T Mobile Printers
  • P4T Mobile Printers
  • QL Series Mobile Printers
  • QL320 Mobile Printer
  • QL420 Mobile Printer
  • QLn Series Healthcare Mobile Printers
  • QLn Series Mobile Printers
  • QLn220 Healthcare
  • QLn220 Mobile Printer
  • QLn320 Healthcare
  • QLn320 Mobile Printer
  • QLn420 Mobile Printer
  • RP4T RFID Printers
  • RP4T RFID Printers
  • RW 220 Mobile Printer
  • RW 420 Mobile Printer
  • RW 420 Print Station
  • RW Series Mobile Printers
  • ZQ500 Series Mobile Printers
  • ZQ510 Mobile Printer
  • ZQ520 Mobile Printer
  • ZR300 Series Mobile Printers
  • ZR338 Mobile Printers
  • ZR600 Series Healthcare Mobile Printers
  • ZR600 Series Mobile Printers
  • iMZ Series Mobile Printers
  • iMZ220 Mobile Printer
  • iMZ320 Mobile Printer