Snappic has a built in template layout creator which you can use to create coupon designs. It requires certain printers and specific media that allows you to tear the coupon/voucher off. See below for more details.
What you need to do is simply create the template using the template layout creator with the following specs.
Supported printers
Mitsubishi printers
2. DNP supported printer - DNP DS40 with DS404x6PM media - More details