Using an outdated "razor-and-blades" business model, printer companies sell printers at a loss and make up for it in ink sales.
When in cartridge form, it's more expensive than vintage Champagne and even human blood.
In fact, it can be cheaper to buy an entire printer than it is to purchase new ink cartridges.
Inkjet printers were first developed in the 1960s, and early computer inks were made from food dye and water.
He's the former editor of The Recycler and has been lobbying for change in the printer-ink industry for years.
The HP Envy 4520 all-in-one printer, for example, sells for $70 but is estimated to cost $120 to manufacture.