Patent Number: 7,356,290

Title: Toner supply unit and image forming apparatus

Abstract: The toner supply unit is provided with a preventing unit for preventing toner contamination due to toner leakage from that sealing valve. A mouth ring of the toner container is provided with the sealing valve. This valve is opened/closed by removing/inserting a nozzle.

Inventors: Matsumoto; Junichi (Kanagawa, JP), Kasahara; Nobuo (Kanagawa, JP), Iwata; Nobuo (Kanagawa, JP), Muramatsu; Satoshi (Kanagawa, JP), Ichikawa; Tomoyuki (Kanagawa, JP), Hattori; Yoshio (Kanagawa, JP), Nakahara; Tomotoshi (Kanagawa, JP), Yanagisawa; Takaaki (Tokyo, JP), Sato; Masumi (Kanagawa, JP), Fujimori; Kouta (Kanagawa, JP), Sudo; Kazuhisa (Kanagawa, JP)

Assignee: Ricoh Company, Ltd.

International Classification: G03G 15/08 (20060101)

Expiration Date: 2020-04-08 0:00:00