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this post was submitted on 06 Apr 2024
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Privacy Guides
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Yes, assuming your printer has a black cartridge. (Otherwise, it's because it legitimately needs all the colors to reconstruct a shitty black -- I don't know if they still make printers like that, though.)
Using C,M,Y in addition to black makes “rich black” in printing applications. Without the K or black component the best you can do is a dark brown.
You don’t need to use additional colors other than K for black, but they do make it a deeper more rick black.
Really only applies when you are printing photographs or high quality images. For text, its a rip off the uses more ink.
"Rich black" in CMYK is one thing, but not what I was talking about. Am I misremembering that some really old inkjets used to be just "CMY" (or maybe a slightly different set of three pigments, but either way no K) where they had to mix all three to get an approximation of black, and do any like that still get made?
(It's been long time since I've paid attention to any kind of printers other than lasers, LOL.)