How can I enable two sided printing from a Mac Pro to an epson workforce 545
I recently purchased a MacBook Pro and cannot enable the two sided printing. My printer is an Epson Workforce 545 and it prints two sided very well from my HP Envy. Can you help me? The option is there in the pre sets but it won't let me change it. I also shows up in the print dialog but is greyed out and not an active option. Thanks,
Dori
iPhone 7, iOS 10.2