Homebrew PCBs

Anyone ever seen one of these work.

http://www.novachromeusa.com/Epssublijet.html

I once had to fit some pc's into a small sign shop about 5 years ago and 
they had one of these (may not have been the exact model, but I think it 
was the 12XX, and used cartridges not bulk like the photo)

They used it to print name plates onto little brass door signs ie 
'manager' 'reception'

It really printed a dark waxy black ink, I'm sure it would resist etching.