![](/images/new-backgrounds/1263546/263546125x1.webp)
A p p e n d i c e s
18.Disconnect the interface from the download cable.
19.Connect the interface to the printer, ie connect the ribbon cable and the power cable.
20.Mount the interface on the back of the printer.
21.Set the switch on the side of the interface case to “9" (= test printout function).
22.Power On the printer.
23.Look at the test printout to confirm the update of the firmware.
Note: The error message printed after the test printout text can be ignored. This is because new firmware has been downloaded and the entire configuration has been reset to default values.
24.Power Off the printer.
25.Set the switch on the side of the LX
The upgrade is now complete and the printer can be reconnected to the system.
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