Patent ID: 8238796

Claim:
A toner supplying device which supplies toner contained in a toner container to a developing device, comprising: a toner tank which stores the toner discharged from the toner container; a toner carrying section which carries the toner stored in the toner tank; a toner dropping route which causes the toner carried by the toner carrying section to drop into the developing device by a weight of the toner; a detecting unit which detects whether an amount of the toner stored in the toner tank becomes a predetermined amount or less; a control unit which controls an amount of the toner to flow into the toner dropping route from the toner carrying section; and a rotatable shaft having disposed thereon a first flexible member which cleans a detecting surface of the detecting unit by rotating in a predetermined direction; and a second flexible member which is a stirring member which stirs the toner at a region between the toner tank and the toner carrying section, the second flexible member extending into the toner carrying section.