Patent ID: 8855535

Claim:
A toner supply device comprising: a toner storage section configured to temporarily store toner supplied from a toner container and supply the toner to a development device visualizing a latent image as a toner image, the latent image being formed on a latent image carrier, wherein the toner storage section includes plural toner containing sections arranged from an upstream side to a downstream side in a toner feeding direction and including respective rotating members configured to rotate to feed the toner, wherein a position of a rotational center of the rotating member included in the toner containing section on the downstream side in the toner feeding direction is higher than a position of the rotational center of the rotating member included in the toner containing section on the upstream side in the toner feeding direction, wherein the rotating member of the toner containing section other than the toner containing section disposed on a downstreammost side in the toner feeding direction includes a plate-like elastic member configured to rotate to feed the toner to an adjoining toner containing section disposed on the downstream side in the toner feeding direction, wherein the toner storage section further includes a dividing part formed between the toner containing sections adjacent to each other and including an upper end part and side wall surfaces extended from arc-shaped bottom parts of the respective toner containing sections adjacent to each other so as to form an opening above the dividing part so that the toner can cross over the dividing part and feed from one of the toner containing sections to another via the opening, wherein a position of the upper end part of the dividing part is higher than the position of the rotational center of the rotating member included in the toner containing section on the upstream side in the toner feeding direction of the toner containing sections adjacent to each other, and wherein the toner supplied to the toner containing section disposed on an upstreammost side in the toner feeding direction is sequentially fed to the toner containing section on the downstream side in the toner feeding direction by a rotation of the rotating member including the plate-like elastic member.