It would be useful to show example of actual receipt print output,Printer Template and how you have configured the printer settings. You can refer to below link.
Printer Types Ticket Printer: Native printing for ESC/POS compatible thermal or dot matrix printers.
Other Settings Character Set: If your printer is ESC/POS compatible and you selected Ticket Printer type enter your printers language code here to support printing language specific characters. RTL Support: Some ESC/POS compatible printers does not support RTL printing. In this case you can try fixing printer output by using this setting.