Thank you Wayne and Mark for your patience and considered responses.
I followed Wayne's suggestion, and in addition deleated the Epson Plist file folder, and when the 3800 appeared on the Printers and Scanners panel, tried adding the printer using "+" and received a pop-up saying "Some of the software is missing. You may have to reinstall the software to be able to successfully print." After trying to proceed, the pop-up message appears "The software for the printer was installed incorrectly. Please install the software from the manufacturer." After doing a manual install of version 9.33, "airprint" does not appear after Epson 3800 when it is highlighted in the Printer/Scanner panel (and I have other devices that, when highlighted, result in "airprint" being listed). But, when the 3800 is highlighted in the Printers and Scanners panel, after opening "Options and Supplies," and "Open Printer Utility," the Epson LFP Remote remains greyed out with the other options working. Looking at the 3800 printer in LR under Printer in the Print Module, I'm finding a few more controls active, but still cannot reset color management, but I'm seeing more controls active than I did before, including being able to control print and paper settings (except for color management). Fortunately printer manages color was turned off when the latest Apple OS installed itself.... So while the remote panel utility is unavailable, I can control most of what I need through LR. A long way around the barn. Thanks for your assistance!
Yes indeed, LuLa is a tremendous resource.