If your ticket is printed upside-down, there are a few settings to send to the printer to adjust.
Open GoDoctor and press Printer Configuration.
You will then get the configuration for the printer:
There is a lot of parametres showing. You will concentrate on the function ~R.
To send a configuration to the printer, press Command Mode. You will then get a white field to send printer commands.
In this case, there's no rotation on the ticket print, shown as ^R000 ~R0.
If you write ~R200 and press Send, the printer will then rotate the ticket print 180 degrees.