| 摘要 |
PROBLEM TO BE SOLVED: To provide a toner storage container that allows the supply of toner to a developing device even when the remaining amount of toner in the toner storage container is reduced.SOLUTION: A toner storage container 32 includes a container body 33 that accommodates a toner to be supplied to a toner conveying device 60, a tube receiving port that can receive a conveyance tube fixed to the toner conveying device, and a pump-up unit 304 that lifts the toner from the lower part to the upper part of the container body and moves the toner toward a toner receiving port of the conveyance tube. The container body includes a projection 302 that projects toward one end of a container opening from the inside of the container body; the pump-up unit includes a pump-up wall surface 304f that extends toward the projection from the internal wall surface of the container body, and a curved part that curves along the projection; and when the toner storage container is attached to the toner conveying device, the projection is present between the curved part and the toner receiving port of the inserted conveyance tube. |
