For the series:
306ci 32ppm color $4,552.00 higher cost to operate.
356ci 37ppm color $6,757.00 low tco
406 42 ppm color $7,505.00 lower tco.
Both the 356ci and 406ci have dual scan doc feeder options. Fully Hypas capable, standard wifi mobile print and scan. Full functionality of A3 units with a nice print 5 bin mailbox option that doesn't need a finisher.