431026 story HP & Staples Collude On $8,000/Gallon Ink? 442 Posted by kdawson on Wednesday December 19, 2007 @08:08AM from the that's-no-razor-blade dept. I Don't Believe in Imaginary Property writes "HP and Staples are facing an anti-trust lawsuit over replacement printer cartridges. According to the lawsuit, HP paid Staples $100 million to refuse to stock competing ink cartridges. HP could make that back in short order when you consider that printer ink can cost $8,000 per gallon and certain printers deceive users to waste as much as 64% of their ink."