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I got a bit of a challenge for you, I own a Jadens brand thermal printer intended for shipping labels by the manufacturer, but I've yet to find an optimal image resolution for it to play nice with dithering to print a good grey tone, think you can help me out?

What I do for the receipt printers is do the dithering myself and send a pure 1-bit pixel image to the printer. I’ve written a library for that: www.npmjs.com/package/canv... The Atkinson algorithm works best in my opinion because it renders a bit lighter which compensates for the fatter print.

But it all depends on how you send data to the printer. If you print through a driver that usually gets in the way.

I started out as something I had to do for my job, but it really turned into an obsession – I now own around 40 different receipt printers of various makes and models. It doesn't get old. And I've been working on something new - that probably nobody but me will enjoy. And that is absolutely fine.