| 摘要 |
<p>A thermal printing head which is provided with a plurality of groups of driving ICs (DrIC1-14), a plurality of main wiring conductors (31-34) for transmitting signals to the driving IC groups, and a plurality of auxiliary wiring conductors (41-43) which are respectively annexed to the main wiring conductors (31-34) and permit electric continuity between the driving ICs of adjacent groups. The main and auxiliary wiring conductors have cuttable spots (a-f) for cutting off the electric connection between the main wiring conductors and auxiliary wiring conductors. At the spots (a-f), restoring wiring sections (32a-34a and 41a-43a) are provided in parallel with relative cuttable spots. Each restoring wiring section contains a pair of pads separated from each other.</p> |
