Power saving of Thermal Print Head was studied.Since heat characteristics and thickness of head substrate are effective on power saving, as reported in NIP25, low thermal diffusivity glass have been developed.FEM simulation was adopted to estimate the characteristics of Thermal Print Head efficiently.Phosphate composition which satisfies the requirement on Thermal Print Head such as homogeneity, 650 Deg C or higher Tg and climate resistance was found. Thermal diffusivity 0.33mm2/sec was achieved.Sample Thermal Head was made with substrate thickness calculated from simulation to satisfy both power saving and print quality.The test result of Thermal Head sample showed 25% power saving and sufficient print quality.
Hirotoshi Terao, Hisashi Hoshino, Taishi Numata, Toshifumi Nakatani, "Development of Power Saving Thermal Print Head Part 2" in Proc. IS&T Int'l Conf. on Digital Printing Technologies and Digital Fabrication (NIP26), 2010, pp 697 - 700, https://doi.org/10.2352/ISSN.2169-4451.2010.26.1.art00083_2