this post was submitted on 01 Jan 2024
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2d printers need to be a lot more precise. 300dpi means each dot is placed with less than a tenth of a mm, and that's not even particularly impressive for a 2d printer. 3d printers get away with a lot more slop than that.
That's only talking about greyscale. Color requires precise alignment of the cartridges for at least 4 base colors (higher end photo printers have even more) , and the mix of those colors must be carefully controlled to get accurate output.
Yeah, that is one of the big problems I was considering. Even monochrome at 300 DPI would be a problem. The imaging array and drum would need to be manufactured separately and installed as whole unit.
At least it only needs to be precise if the register is adjustable. You would need some tiny stepper motors right? I'm not familiar with how register is adjusted on desktop printers, but I know it can be.