It's not exactly what the OP was after, but, at
http://www.cbridge.com , they have a photo-sensitive screen
product that can make a screen-printing screen, directly
from laser-printed artwork (or any black-and-white artwork).
I think the relevant product name is something like PhotoEZ
HiRes. I have it here but never got around to trying it.
The HiRes version is supposedly able to accurately reproduce
text down to 4-point size. I don't remember the price of
the starter kit that I bought. But it was fairly cheap.
- Tom Gootee
http://www.fullnet.com/~tomg/index.html