| 摘要 |
PURPOSE:To enable to confirm a printed image immediately after printing with a simple construction and enable to prevent a printing performance from being lowered, by a method wherein one electrode for a heating resistor element is provided by utilizing a side end face of one end part of a head substrate, and the heating resistor element is provided in proximity to the end part. CONSTITUTION:A common electrode 5 which is one lead extended from the heating resistor elements 2 is extended on the side end face 1a of one end part A of the head substrate 1. By this, the elements 2 can be provided in the condition of being locally aligned in proximity to the end part A. The common electrode 5 does not need to be formed into a minute pattern, and can be easily formed by vapor deposition or the like. In this construction, the distance from the elements 2 to the end part A can be substantially eliminated, namely, it can be reduced to, for example, about 2mm.. Accordingly, a printed image can be confirmed immediately after printing, a molten material generated from a thermal recording paper is prevented from being accumulated on the substrate 1, and reliability on operation can be enhanced. |
