AI slop picture i swear. Inkjet heads essentially boils ink to jet (see?) it out of tiny nozzels. Never drips like that.
Yes i didn't bother reading the caption.
No, that is "bubble jet". Inkjets are proper resonant squirts, usually piezo driven.
And, for that reason, inkjets work with a much wider variety of liquids. Taken to the extreme, you have full color 3d prints with incredible precision: https://youtu.be/4IkvzMJihuY
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If you scroll down a bit, you can see more realistic looking videos.