A multiparameter light typically includes a lamp and shutter in combination with one or more optical components, various electrical and mechanical components for operating the optical components, suitable electronics for controlling the parameters of the multiparameter light, and suitable power supplies for the lamp, motors, and electronics. The datapath includes one or more datapath elements operable to receive input signals. To perform the refilling, the cartridge is brought at the end of its stroke into a service station mounted on the body of the main tank, which is moved against the cartridge by means of a motor-driven linkage, controlled by a refilling management programme, in response to the signals of a cartridge ink level sensor. A bit line precharge circuit precharges bit lines to the power source potential when the word line is inactivated in accordance with a signal outputted from a BLPC signal generating circuit.