Can programs distinguish between a 67 and a 97?

[Dave Britten]

I'm not aware of anything as straight-forward as flag 55 on the 41 or 42 to detect the presence of a printer, but are there any clever ways for a program to determine if it's running on a 67 or a 97? Any subtle differences that can be tested for? It seems like there would be times where it makes sense to have separate print and display routines, rather than simply relying on the 67's default handling of "print" instructions.

I suppose at the very least, one of the user flags could be used as "printer enable".