In ye olde dayes, printing with solid black was a problem if you couldn’t count on your printer being able to put down an even coat—any imperfections were immed

In ye olde dayes, printing with solid black was a problem if you couldn’t count on your printer being able to put down an even coat—any imperfections were immediately obvious. Also, black ink by itself was dull, so it was common to punch it up with a hit of cyan or magenta.