From: not@telling.you.invalid   
      
   Lawrence D'Oliveiro  wrote:   
   > On 21 Feb 2025 18:29:31 +1000, Computer Nerd Kev wrote:   
   >   
   >> They must really be more like paints. Ink dyes the paper - it's a   
   >> subtractive process, hence mix all the colours on an ink-jet printer and   
   >> you get black. Onto black paper, ink can only make the black darker.   
   >   
   > When you apply the ink (or paint) as a layer on the paper, then the light   
   > has to reflect off that ink before it gets to the paper.   
      
   Ink isn't a layer, it's absorbed by the paper, and absorbs light   
   hitting it which is otherwise reflected. You're talking about   
   paint (some sort of latex thing apparantly, with the HP printer   
   link you gave, which they're marketing as ink).   
      
   > This is similar to how a blackboard works, which is how you can write   
   > light-coloured text on a dark blackboard.   
   >   
   > Subtractive mixing requires actually mixing the paints.   
      
   You know, given our past exchanges, I think you know exactly what I   
   mean and this conflating of ink and paint is just trolling.   
   Goodbye.   
      
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