I'm a new Arduino user so excuse my misunderstandings.
I'm going to use an inkjet print head to dose very small amounts of liquid.
I don't need anything "extra" on it, like motors shifting it left and right. I just want each color bay to either fire, or do nothing. (on/off, only "variable" is how long I run it for) Looking at the print head assembly, it has 50 gold contact points with the cable that connects to the rest of the printer.
If I want to run this outside of the printer off of an Arduino board, how do I do that? Run a print command from the computer for one color, then measure the voltages being sent to each contact point?
By doing that, I can learn what the voltage is, and to which contact points, right? I'd then able to use that to program the Arduino.