Patent Number: 8,879,963

Title: Toner supplying device and image forming apparatus using same

Abstract: A toner supplying device including a secondary toner container, a first feeding member performing a first feeding operation of feeding toner from a toner container to the secondary container on demand, a second feeding member performing a second feeding operation of feeding the toner from the secondary container to a developing device on demand, and a toner supply controller controlling the amount of the toner in the secondary container to be greater than a predetermined amount. The controller performs first control in which when the first feeding operation is performed, the amount of the toner fed in the second feeding operation per unit of time is decreased, or second control in which when the amount of the toner fed in the second feeding operation is greater than a predetermined amount, the amount of the toner fed in the first feeding operation per unit of time is decreased.

Inventors: Hirayama; Yushi (Sagamihara, JP), Koizumi; Eichi (Ebina, JP), Ishibashi; Hitoshi (Kamakura, JP), Muto; Tetsuya (Kawasaki, JP)

Assignee: Ricoh Company, Limited

International Classification: G03G 15/08 (20060101); G03G 15/01 (20060101)

Expiration Date: 2019-11-04 0:00:00