Sounds like a phototypesetter:
http://en.wikipedia.org/wiki/Phototypesetting
(I'm probably going to get some terminology wrong here, but...) My mum worked at a regional daily newspaper. They had 2 or 3 phototypesetters in the corner of their computer room. Each one was about the size of 3 full height racks. They'd print on to photographic paper and were designed to be automatically fed in to a machine (about 1.5 full height racks high) from the same manufacturer that would develop the paper, ready for a Compositor (ie, a surly unionized employee) to cover it with hot wax, slice it with a scalpel and physically lay it out on the page. If the printer crashed, it would have to be rebooted with a series of switches to bootstrap it far enough that it could load it's bootloader (?) from paper tape.
Where she worked decided to use a different manufacturer for the printer and the developer such that it wouldn't automatically feed from one to the other. So the printer dumped it's outputs in to boxes mounted on the wall of a darkroom and would wait for someone to go in and manually feed it in to the developer.
It was glorious.
If anyone ever gets the chance to go on an open-day or tour of the noisy end of a newspaper or large print shop, i'd totally recommend it.