Abstract: The embodied systems are used to manage consumables used in an ink jet print system and to prevent use of unauthorized printheads or unauthorized ink supply containers in an ink jet printing system. The embodiments are used on typical ink jet printing systems that include a printhead, an ink supply container, a carriage board in communication with the printhead, and a main board in communication with the ink supply container and the carriage board. The novel systems include a serial device disposed on the printhead or the ink supply container having a unique signature which is then authenticated by firmware and hardware of the printing system.