You may already know all the myths about the quality of remanufactured printer cartridges versus original equipment manufacturer (OEM) ink cartridges. But let’s dig a little deeper on some of the misunderstandings surrounding how these cartridges are actually produced. What’s an OEM Cartridge? OEM ink cartridges are manufactured by the same company that makes your printer. For example, if you have an HP printer, then the OEM cartridge would originate from HP as well.