The HP 62 cartridges belong to a number of printers from the HP Envy and HP OfficeJet series. If you have a printer from this series and aren't sure whether the 62 cartridge line fits, first check the product description of the cartridges. There is a list of printers that support these cartridges. This prevents you from getting the wrong cartridges and not being able to print any documents. The 62 cartridge series consists of combo packs and separate cartridges in the color black. That is nice when you mainly print in black and white. Note that there is an XL variant.