Hewlett-Packard last year filed patents for an ink cartridge-refilling machine, even though its disposable ink cartridge business ranks among its most lucrative. The U.S.-based firm has no refilling ...

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, ...

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 ...

Although HP ink cartridges are intended for one-time use, you can purchase refill kits fairly cheaply which enable you to get extra life out of your existing cartridges and save your company money.