Array printhead with three terminal switching elements

a plurality of lines by which a print head was arranged on a base material -- a plurality of sequences arranged on a conductor (26) and a base material -- a plurality of ejectors (10) which accomplished a line and a sequence and were arranged on a conductor (28) and a base material are included. Each of a plurality of ejectors includes a resistive element (20) arranged on a base material, and a supply path which passes along a base material for exclusive use in each of a plurality of ejectors. A semiconductor device (24) combines with each resistive element. in order that the semiconductor device may operate a resistive element which combines with a semiconductor device -- a plurality of lines -- a sequence of one or more of the conductors -- it answers to a signal from one of conductors.