Patent ID: 8879963
Filing Date: 2014-11-04
Classification: G03G

Abstract:
1. A toner supplying device for supplying a toner from a toner container to a developing device, comprising: a secondary toner container disposed between the toner container and the developing device to temporarily store the toner; a first feeding member configured to perform a first toner feeding operation of feeding the toner from the toner container to the secondary toner container on demand; a second feeding member configured to perform a second toner feeding operation of feeding the toner from the secondary toner container to the developing device on demand; and a toner supply controller configured to wherein, in the first control operation, when the first toner feeding operation is performed, an amount of the toner fed in the second toner feeding operation per unit of time is relatively decreased to a maximum toner feeding amount greater than 0 compared to a case of a normal toner feeding amount in which the first toner feeding operation is not performed, and wherein, in the second control operation, when the amount of the toner fed in the second toner feeding operation is greater than a predetermined amount, an amount of the toner fed in the first toner feeding operation per unit of time is relatively decreased compared to a case in which the amount of the toner fed in the second toner feeding operation is not greater than the predetermined amount.