Why don't they?
Kodak
announced that it's finally all out of the film business, all in with printers.
Hey dummies! Why don't you make a fucking printer that doesn't require cartridges? A printer that has built-in refill holes for ink, and a cleanable print head. Charge BIG BUCKS for the printer. A thousand bucks, two thousand. I'd snap it up in an instant. Anyone who does serious graphics work would grab it. One big expense MORE THAN COMPENSATES for the endless trouble, dirty hands, wasted material, inconsistent color, and delays when you forget to order cartridges.