A system and method are disclosed for modifying the capabilities and functions of a printer after it is manufactured. A consumable/replaceable printer cartridge includes a storage device having updated and/or additional printer function data and other data for use by the printer control circuitry to execute printer functions and other types of functions. In addition, when the printer cartridge is installed in the printer the storage device may be utilized by the printer control circuitry as expanded memory for use in executing the updated and/or additional printer functions and other types of functions.