Digital BW, The Print

Been off the list for a while, and I now see a bunch of posts re: IJC/OPM.  From 
what I can gather, this is an acronym for a RIP, but it's very difficult reading 
back thru all the threads to figure out what exactly everyone's talking about.  
So, what is IJC/OPM and can someone point me to a link that explains what it 
is (like, where you bought or downloaded it from)?  Thanks!