I'm recently interested in print-heads, especially thermal inkjet print heads. I would like to design a simple print head with nozzles in a row with no chambers, but only a straight linear pipe-like structure, and the heating resistors stuck on the side.
I'm quite lost here. I don't know what kind of material I should use, or what should be the diameter of the nozzle, and etc.
I want to look at the earliest version of thermal inkjet print heads but all that I can get in google patent is the latest, and high tech version of print heads that I can barely understand.
Can anyone tell me what to do, or where to look at?