Ink Jet Micromachining

Hello,

I am aware of a number of groups using ink jet technology to deposit
materials to construct everything from MEMS and Solar Cells to possibly
nano scale devices.

These groups are using either commercial ink jet technology (from 
companies like Microfab or Microdrop) or self designed mechanisms.

I have recently been told that some groups have, to minimize costs,
utilised the piezoelectric ink jet heads from EPSON commercial ink jet 
printers.

These EPSON heads have the ability to deposit as low as 5 picolitres of ink.
An EPSON engineer has been quoted as saying that there latest heads
are capable of creating lines 1um in width.

My question is:  Does anyone have experience utilising EPSON ink jet
heads in this type of application? Any advice on the backwards engineering
the control of such a head?

Sincerely,
James McMillan