Print via USB or from a USB drive

Can anyone point me to where the instructions might be for printing without wifi (USB cable if possible, USB drive or Ethernet if needed)? I have searched the forum but the instructions that I have found don’t work. The Beamo says that it cannot read the file AND all of the instructions are geared towards the Delta line.

Thanks so much for your help in this,

I just wanted to see if I could bump this up a bit. This seems like a relatively basic feature. Am I missing something?