DEVELOPER SUPPLY CONTAINER AND DEVELOPER SUPPLY SYSTEM Russian patent published in 2017 - IPC G03G15/08 

FIELD: printing industry.

SUBSTANCE: group of inventions includes a developer supply container and a developer supply system comprising of a developer refilling device and a developer supply container mounted to said developer refilling device removably. When this developer supply container consists of a part containing the developer which is configured to accommodate the developer, a discharge opening capable of discharging the developer from said developer containing part, a drive receiving part configured to receive a driving force, a pump part adapted to drive it with the driving force received by said drive receiving part, for alternately changing the internal pressure in said developer containing part between the pressure, which is below ambient environment pressure, and the pressure, which is above ambient environment pressure, and a locking part configured to lock the positions of said pump part in a predetermined state so that at the beginning of the pump part operation the air gets into mentioned developer containing part through said discharge opening.

EFFECT: providing a developer supply container and developer supply system in which the internal pressure in the developer supply container becomes negative, so that the developer stored in the developer supply container is loosened properly, ensuring a developer supply container and developer supply system that can discharge the developer from the developer supply container into the developer refilling device appropriately from the initial stage.

58 cl, 103 dwg, 2 tbl