@Tony Thanks for your reply. I ultimately got all 4 printers to work, but feel like it should have been easier. For the print functions, I re-configured the ports to have the changed IP addresses for...

4 brother printers on existing network: HL-5250DN, wired ethernet connection to network HL-L2370DW, wireless connection MFC-J430W, wireless connection MFC-J615W, wired ethernet connection 5250DN...