Is it possible?
Somebody can help me?
Yes, someone has. Yes, processor-controlled thermal printers exists, so it must be possible.
No, most probably no one will donate the time.
Pick up a service manual for a printer. That shows how they connected the head electrically.
Once the electrical interface is done, all you have to do is experiment. You can cheat a bit and use an oscilloscope to look at the signals in a working printer - that shows voltage levels and timing for different signals.
It's just amazing to see what they can do with processors these days - They're ubiquitous!
Why think that they can't be used for a printhead?
A long, long time ago, before processors were common place, it was not unusual to build complete circuits out of a mythical technology referred to as TTL. It was amazing, but could be difficult to modify.
I had a mate who spent ages designing and building a digital clock using TTL. He was chuffed to bits.
Until ... I pointed out that a day has 24 hours and not 20.
He was sooooo p***ed off, he threw it in the bin!
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A long, long time ago, before processors were common place, it was not unusual to build complete circuits out of a mythical technology referred to as TTL. It was amazing, but could be difficult to modify. I made an Amino Acid synthesizer out of a teletype and TTL in the olden days. Talk about "could be difficult to modify" Later (when that became economically feasible) I made it minicomputer controlled. I left the chemical analysis equipment area before micros became abundant, but would guess that todays model is microcontroller driven.
Erik