Buying toner cartridges online will save your money and time without compromising on quality. Cartridges with toner in them have a specialized ink that is different from your regular ink cartridges. When the toner cartridge run out of toner then the toner cartridge can be either replaced or refilled with toner from toner refill kits. Once you have replaced or refilled the toner cartridge you may produce good quality, clear print once again. A great way to save money is to use print cartridges with remanufactured printer inks or refill cartridges.