Homebrew PCBs

>printer and finally I could get some printouts. It is based on Epson
>inkjet head and X-axis mechanics.


Why not use a CNC Drilling Machine instead of a new XY mechanism?
You can attach the printing head to the CNC Machine's tool holder.
If you can software align the printed holes with the drill position, 
you'll get a full PCB machine: drill, print, etch.
Cristian