An integrated circuit includes mechanisms for adjusting or setting the gate bias of one gate of one or more multi-gate transistors. Based on this, the connecting socket can be firmly attached to a predetermined position and serve as a socket for connecting the wire of the electronic product, and which can also be used independently as an adaptor socket for an extension wire set-up. A pair of non-ink-ejecting side cheeks of the orifice plate laying on opposite sides of the nozzle portion are each wiped once during the bi-directional wiping stroke, with one cheek being wiped while the blade travels in a first direction, and the other cheek being wiped when the blade travels in a direction opposite to the first direction.