DEVELOPER SUPPLY CONTAINER AND DEVELOPER SUPPLY SYSTEM Russian patent published in 2019 - IPC G03G15/08 

FIELD: developer supply container.

SUBSTANCE: claimed group of inventions relates to the developer supply container to be mounted into the developer replenishment device with possibility of dismantling, as well as to the containing them developer supply system. Disclosed group of inventions includes a developer supply container and a developer supply system, comprising a developer replenishment device and a developer supply container mounted in said developer replenishing device with possibility of dismantling. At that, developer supply container includes: developer holding part, made with possibility to contain developer, an unloading hole configured to enable developer discharge from said developer holding portion, a drive reception portion configured to receive driving force, and a pump part adapted to actuate by a driving force received by said drive receiving portion for alternately changing internal pressure in said developer holding portion between pressure, which is lower than ambient pressure, and pressure which is higher than ambient pressure, by increasing and reducing volume of said pump part, wherein position of said pump part, before the developer supply container is mounted into the image forming device, is installed so that the said pump part starts with a stroke, at which the said volume increases at the beginning of the said pump part operation.

EFFECT: technical result consists in providing developer supply container and developer supply system, in which the internal pressure in the developer supply container is made negative so that the developer in the developer supply container is loosely dosed, and also in provision of the developer supply container and developer supply system, which can appropriately discharge the developer from the developer supply container to the developer replenishment device from the initial stage.

18 cl, 103 dwg