You’ve undoubtedly heard or seen advertisements for businesses that promise to save you money on printer ink cartridges -- one problem, though, according to HP: Refilling doesn't work. Share on ...

Hewlett-Packard on Thursday accused a national cartridge reseller of refilling used printer cartridges with ink that relies on a formula for an HP-patented ink brand. In its letter to Cartridge World, ...

Hewlett-Packard, much of whose profit comes from printer supplies, has sued two companies that sell refilled ink cartridges, but it stopped short of trying to block the refill business altogether. On ...

When you refill HP color ink cartridges, you also need to reset the cartridge. Each HP color cartridge contains a chip that communicates with the printer. When the ink in the cartridge becomes low, ...