Three-dimensional Observation of Toner by Ultra-high Voltage Electron Microscope Tomography

Abstract

________________________________________________ Toner contains multiple additives to perform various functions and is designed and manufactured by arranging these additives to ensure that they perform its functions well. Therefore, to manufacture toner according to its design, it is important to understand the actual shape of toner particles produced and their internal structures. To examine their internal structures, toner particles of 4-6 μm diameter were analyzed by ultra-high voltage electron microscope (UHVEM) tomography. Tomographic analysis provided a lot of information about the three-dimensional distribution of wax and pigments. Furthermore, this method showed the presence of a charge control agent inside of the surface of the toner particles. * リコー未来技術研究所 分析技術研究室 Material Analysis Technology Research Department, Ricoh Institute of Future Technology 本稿は,日本画像学会に帰属の著作権の利用許諾を受け,日本画像学会誌, 224号, Vol. 55 , No. 6 (2016)に掲載した論文を基に作成した.