now, i already finished installing thai font, ANGSA.TTF and i use below zpl command to command my printer.
^FD26 สิงหาคม ๒๕๖๑^FS
then the printer print only HELLO, 500 and bangkok. For more information, i send this command by using rs232. i hope you can solve this problem. Thank you for your help.
I think you are missing a command to set the character set to UTF8:
also I think the ^CW1,ANGSA.TTF needs to be followed by ^FS before the next ^FO, ^A1 so it can be processed before the command that uses it.
Let us know if this works.