I was playing around with Windows 98 drivers and found a combination of settings that printed the slowest, loudest, darkest black line I’ve ever seen this dot matrix printer print. And then a second one on top of the first one, just in case it wasn’t dark enough already.
I’d guess that that’s about a week’s worth of wear in 30 seconds.
And now, I’m enjoying random fainter black parts in my prints because that part of the ribbon’s worn much more than the rest, lol.
(Printer is an Epson LQ-300+II)