How can I print a POS app receipt that mirrors the preview?

[eadetail]

I wanted my email receipts to look like the preview for a printed receipt but was told that I need to hire an expert to accomplish that. SO my question now is, at the time of sale using the POS app, how do I print a receipt that looks like the printed receipt preview? There is no option on my POS app to print a receipt. The only options I see are email or text.