multiple printer using php

i need my program to have multiple printer! same restaurant software.. scenario: the software is use for salon if cashier having customer and customer he want haircut the cashier will do the sales after he do this sales the program will send print out to another printer automatic. when the sales is complete. print count 1 printer for cashier 2 or more printer should be able to add on the system. system frameworks: phpcake and codeigniter