About 20 years have passed since CTS (Computerized Typesetting System) has been introduced to the printing industry. The recent development of computer technology has completely changed the style of devices and systems compared to the early days of CTS. Composition techniques for the Japanese language have some conspicuous features that originate in the culture of Japan. The Japanese language utilizes both “Kanji” characters, which were imported from China, and “Kana” characters. which were domestically invented. While “Kanji” characters are ideograms, “Kana” characters are phonograms. Because Japanese is written with these two different types of characters mixed in between. Japanese composition has such unique styles called “Furigana” and “Warichu”. Also, composition for text with Japanese and English characters used together is commonplace. Thus. the composition rules used in Japan are a mixture of rules for different languages and have become very complex.