Micros e7 Printer addition

I run a restaurant using Micros e7 POS system. The tech service for
micros through the company we bought the system is a joke, they know
less than I do and charge $125/hr.

I want to use an HP 3820 printer with the PC that is the server for the
POS system. Currently all printing goes through the little thermal tape
printers at the workstations. So, how do I go about adding the HP
printer in e7

Thanks.