Patent ID: 7740347

Claim:
A replaceable print cartridge for installation in a mobile device, the print cartridge comprising: a structure configured for removable installation in the mobile device; at least one ink reservoir; storage means configured to store information indicative of an amount of printing achievable by the cartridge based on the amount of ink in the at least one ink reservoir, the information being stored in the form of a plurality of bits, the storage means including a plurality of first fusible links, each of the first fusible links storing one of the bits; an information changing mechanism for changing a value of the information by selectively blow one or more of the first fusible links each time a predetermined amount of ink is consumed; a printhead having a second fusible link which destructs the printhead in response to the value of the information reaching a predetermined threshold; wherein, the structure supports the reservoir, the printhead, the storage means and the information changing mechanism for simultaneous installation and removal from the mobile device.