Receipt alignment is not working properly in swift

Question

I am currently printing receipt from my data when i print my receipt alignment data is not working properly

i think that i should apply start index and end index to

Answer 1

your code is fine additionally , there is the option in Epson Printer in

enum EposOcAlign {
 EPOS_OC_ALIGN_LEFT = 0,
 EPOS_OC_ALIGN_CENTER,
 EPOS_OC_ALIGN_RIGHT
};

the method is invoked as - (int) addTextAlign:(int)align; use align type as center and try once