bug#44962: Small mistake in emacs manual ?

[Eli Zaretskii]

> Cc: 44962@debbugs.gnu.org
> From: Jon Krom <jon@krom.eu>
> Date: Mon, 30 Nov 2020 20:04:28 +0100
> 
> One small additional comment. You write:
> 
>  > [...] so it makes no sense to use
>  > it when your printer supports colors.
> 
> "No sense"?  In fact, I quite often print my documents in 
> black-and-white only on  my color-printer.

That corresponds to the value nil, not to the value black-and-white.
IOW, you want ps-print not to use colors at all.