Kabushiki Kaisha Toshiba

Toshiba Tec Kabushiki Kaisha

Yoshihito Shimada

Hiroshi Ohno

Tsuyoshi Itou

Takahito Kabai

Masahiro Ikuta

Takafumi Hara

Kazuhisa Takeda

Toshiaki Yamauchi

Yasuhito Noda

Hisanobu Ajima

Yukihiro Fujikura

Yasuo Goto

Yuuko Takano

Certain embodiments provide a marking apparatus, which marks on media that is reusable by recording and erasing decolorable material, comprising a scanner configured to read media to which a first mark representing the reuse times of media is attached; a determination section configured to determine whether or not the media is reusable according to a reading result of the first mark or a use state of the media; and a recording section configured to print a second mark different from the first mark on the media according to a determination result representing that the media cannot be reused.

Marking apparatus and decoloring apparatus

A wax dispersion in a developing agent using a polyester resin is improved by adding an ester wax in the polyester polymerizing step or both in the polymerizing and kneading steps, or by adding a compatibilizing agent selected from the group consisting of alkylene block copolymer or graft copolymer to a polyester-styrene hybrid resin used in place of the polyester resin.

Developing agent and method of manufacturing the same

Growing community of inventors

Numazu Shizuoka, Japan

Yoshihito Shimada