With the HP 131 toner cartridges, you can print documents again with your HP LaserJet Pro Color printer. You can see in the product text of the toner cartridges if they're suitable for your printer. Do you prefer to buy your toner cartridges separately, as a Combo Pack, from HP itself, or perhaps by the private label Pixeljet? These options are all possible. This means you don't buy too much, while you only need 1 toner cartridge, for example.