Asher, I fixed the blue bar problem by deleting all my printers, then following the directions on a fixit page that involved restarting in protected mode, typing into terminal to disable csrutil, restarting then reinstalling, then restarting in protected and enabling in terminal - all very un-mac like! I guess the blame rests on Epson for not updating drivers etc. to work with system updates (and I'm still running 10.11.6 on my old 2008 Mac Pro). Hopefully it will keep working correctly since my machine can't update to the latest system.