| 摘要 |
A heating device in a writing head of sandwich design consists of an additional layer applied to the top layer adjacent to the ink reservoir (9) and the ink duct (8), which forms a heating layer (11) and a temperature-sensing layer (12), each of which can be contacted from the exterior. The heating layer (11) in the region of the ink reservoir (9) possesses a structure with a large surface area, preferably in the form of a meander. |
