THERMAL HEAD

PURPOSE:To enable heating resistors to be more closely arranged with each other along the edge of a substrate to reduce the expensive heat-resistant substrate in width, by a construction wherein the adjacent heating resistors are connected with each other in pairs by a conductor at the edge side of the substrate, and one of each pair of heating resistors is connected to a discrete selective electrode and the other is connected to a common electrode. CONSTITUTION:At a common electrode 10 formed side of heating resistors R1, R1', R2, R2', ..., discrete selective electrodes 6 are so formed as to be con nected to one of each pair of heating resistors and a common electrode 8 are so formed as to be connected to the other. The common electrodes 8 are con nected to the common electrode 10 formed along the other edge 5 of a ceramic substrate 2. The common electrodes 8 are provided by one to every two adjacent heating resistors, e.g. the heating resistors R1 and R2, R3 and R4. In this manner, the respective pairs of heating resistors, e.g. R1 and R1', R2 and R2',..., are made to form one each dot of picture element.