Pad printing may do what you need.

http://en.wikipedia.org/wiki/Pad_printing

-- Alan

At 04:36 PM 5/14/2008, you wrote:
 >Hello,
 >
 >I have an application where I need to apply resistive ink to a substrate,
 >similar to membrane buttons or potentiometers.
 >
 >The problem, is that the application must be done in many different shapes,
 >so screen printing would be a real pain.
 >
 >Is there something available that "prints" this ink (similar to ink-jet, is
 >posible), from a file?
 >
 >Any other ideas you can share will be greatly appreciated.
 >
 >Gabriel
 >TGO
 >

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