The market for the thermal-type printer is expanding. The thermal printers are used in various environments, where the thermal printhead is exposed to year round temperature and humidity fluctuations. In these harsh environments, stronger corrosion resistance is required.In this paper, we describe the new overcoat for the thermal printhead to achieve higher corrosion resistance. It is six times stronger than Kyocera's conventional ones. The overcoat for the thermal printhead has an important function as the prevention of corrosions. Generally, the thicker overcoat is used in order to enhance the corrosion resistance. However, this new overcoat enables to make it 15 percent thinner, despite the enhancement of durability to corrosion. Moreover, this new overcoat increases the energy efficiency and the printing quality.
Yoshihiko Fujiwara, Hiroshi Masutani, Koji Ochi, Kazuyoshi Sakamoto, "Development of the High Durability Overcoat for Thermal Printhead" in Proc. IS&T Int'l Conf. on Digital Printing Technologies and Digital Fabrication (NIP28), 2012, pp 81 - 83, https://doi.org/10.2352/ISSN.2169-4451.2012.28.1.art00026_1