An ink cartridge chip includes an interface unit, a control unit, and a storage unit, wherein the interface unit is configured to receive a light control command sent from an imaging device, and the light control command includes ink cartridge identification information; the storage unit is configured to store autogenic identification information and a state flag, and the state flag includes an executable state or a non-executable state; the control unit is configured to execute the light control command; and the control unit is is configured to, when the interface unit receives the light control command, control the light-emitting unit to execute the light control command based on the type of the light control command and the state flag in the storage unit to re-determined the state flag.