Abstract: A liquid jet recording head includes a substrate including a plurality of discharge energy generating elements, and a plurality of ink supply ports positioned along an array direction of the plurality of discharge energy generating elements and separated from each other by beams, a plurality of ribs supported by the beams, and an orifice plate supported by the plurality of ribs, wherein the orifice plate includes discharge ports for discharging liquid droplets which enter from the plurality of ink supply ports and is provided with discharge energy by the plurality of discharge energy generating elements.

Abstract: An object of this invention is to decrease the amount of ink mist while keeping the image quality high in inkjet printing. To achieve this object, printing is performed by time-divisionally driving, for each block, a plurality of nozzles for discharging ink. In preliminary discharge, the nozzles are so driven as to set the driving time interval between neighboring nozzles to the first time interval. In printing, the nozzles are so driven as to set the driving time interval between neighboring nozzles to the second time interval longer than the first time interval.

Abstract: A liquid discharge method of a liquid discharge head having a discharge port which discharges a liquid, a channel which communicates with the discharge port and an energy generation unit which is disposed opposite to the discharge port and which generates energy for use in discharging the liquid. The method includes driving the energy generation unit, and then connecting a tip portion of the liquid discharged from the discharge port to the liquid at the discharge port via at least two liquid columns, and cutting the at least two liquid columns to separate the tip portion of the liquid from the liquid at the discharge port.