The Yellow Problem
I had been doing tech support for Hewlett-Packard’s DeskJet division for about a month when a customer called with a problem I just couldn’t solve. She told me she could not print yellow. All the other colors printed just fine, which completely baffled me, because the only true colors are cyan, magenta, and yellow. For example, green is made from cyan and yellow—yet green printed perfectly. Every color of the rainbow...