For example, to bold something, you toggled with a .b (dot-bee). I don't remember how you un-bolded though, but it was similar. Same goes for underline, and also choosing entirely different fonts, font sizes, italics, super/subscript etc. Suddenly the printer that made all that blocky print normally, looked great as long as you didn't mind it taking more than twice the amount of time to print out.
It made amazingly good looking documents that wouldn't pass the muster at all since the invention of bubble and laser jets. Those were the days.
I very much dislike environmental noise (ASD and all), but for whatever reason I really kinda liked the intermittently steady drone that constantly changed pitches, and the occasional squawking that came along with it.
Amazing.
PS: They seem to cost quite a bit more than a bubble jet, generally between $300 and $500+. Here's one from Okidata: https://www.amazon.ca/dp/B00007G7O1?linkCode=g12&tag=ezvid-2...