Epson Technical Information

Hello all,

I am looking to use an EPSON ink jet print head for some research.
The research involves using the ink jet print head separate from
the other printer hardware.

My question is: Does anyone know where I might be able to get
some technical information on the head component for an EPSON
ink jet printer. (Pin outs, Voltage characteristics, etc...)

Stylus 600 or color 777, however, if I find this information
for another model I would most likely try to find that model.

Do service manuals have this information? Do EPSON authorized
repair people have this information? Does anyone have any contact
information for EPSONS engineering department?

Sincerely,
James