BOS Terminal A to E transfer on separate bookings

Flying into BOS on Delta (arrive ~6:30pm, Terminal A), then 9:15pm international on Azores Airlines (Terminal E).

Separate tickets. Azores doesn’t do online check-in or mobile boarding passes — need to print at airport.

No pre check (Azores doesn’t participate).

If I take the airside shuttle A → E, is there any reliable way to get a boarding pass without exiting security?

•	Transfer desk or kiosk airside?

•	Will gate print it?

Or do I need to exit security area and use the check-in counter at E?