| 摘要 |
PURPOSE:To unnecessitate complicated circuits such as a distributing circuit, by a method wherein driving circuits on both sides are connected in series with each other, and data are inputted through a single data input terminal, in a distributing-type thermal head. CONSTITUTION:Heating resistors 1 are so constructed that odd-numbered driving circuits C1-Cn-1 are placed on the upper side, while even-numbered driving circuits C2-Cn are placed on the lower side, and the circuits are connected in series with each other. When data are transferred serially through an input data wire 2 in the order of 1 n, the data are inputted first into the n-th driving circuit Cn, is then sequentially transferred into Cn-1, then into Cn-2 and so on, and when the first data reach the first driving circuit C1, each of the driving circuits C1-Cn is operated to drive the heating resistor 1, thereby developing a color at a corresponding part of a heat-sensitive recording paper. Accordingly, complicated circuits are unnecessitated, and the number of production steps can be reduced. |
