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.

Places That Refill Printer Ink Cartridges. By Cameron Sherber, Contributor. Get the most out of your workplace's printer cartridges. Getty.

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 ...

Instead of buying expensive ink cartridges, you can refill the ones you have. This is not only the more environmentally friendly approach, but it also saves money. Advertisement.