Ben,
Okay, good news! Following your directions above and installing the system-config-printer-gui software enabled me to print. While it didn’t offer me the exact driver for my specific Brother printer, I chose one close enough in model number to get the job done.
This is great, as I would prefer not to go with a Debian/Ubuntu derivative distro to meet my needs, but I also need to be pragmatic about this. OM is very impressive, so being able to print definitely gets me one step closer to using it to fulfill our needs.
Thanks for your help! 
