OEM cartridges are originally manufactured by the printer manufacturing companies. They are specifically designed for the model of the printer they manufacture. Generally, OEM cartridges are expensive as compared to the other cartridges available in the market. But, it is believed that they give the best quality printing. It is also beneficial for the printer as the technology used in manufacturing the original cartridge is according to the model of the printer. Each cartridge has some specific features that are available only in the original cartridge and not in the remanufactured one.