Do I need a second party rip for the new iPF 8400 printers or is there a post script version?

[rtracey]

My lab is thinking of a iPF 8400 printer, but we need to know if this needs a second party rip. We operate macs and PC and run various programs for poster printing...we are getting conflictijng information. Some say yes and others say no.... what is it?  do we need to get a RIP...thanks   rt