POS Receipt aligned to right

Hi All,

POS Receipt is printing towards right side,i had checked printer settings and in the POS receipt format design too everything is on Left side, even the alignment is on Left side for all the fields, but still receipt is getting printed with margins on top and left, i'm using windows driver and Thermal printer, could any one help me to fix it.

Thanks & Regards,
Ansar Basha.S