PROCESS CARTRIDGE AND IMAGE FORMING DEVICE Russian patent published in 2021 - IPC G03G21/18 

FIELD: photography.

SUBSTANCE: invention relates to a process cartridge. The said cartridge contains: (i) a photosensitive drum; (ii) a rotatable developing roller for developing an electrostatic latent image formed on the photosensitive drum; (iii) a developer supply roller provided in contact with the developing roller to supply the developer to the developing roller; (iv) a driving force receiving portion for receiving a driving force, wherein the driving force receiving portion is provided on an axis end portion of the developer supply roller and is movable in a direction intersecting the axis of the developer supply roller; (v) the first driving force transmitting portion for transmitting a driving force received by the driving force receiving portion to the developing roller, the first driving force transmitting portion being provided on the developer supplying roller; and (vi) the second driving force transmitting portion provided on the developing roller for transmitting a driving force by engaging the driving force transmitting portion. The rotation direction of the developing roller is opposite to the rotation direction of the developer supplying roller, and the surface speed of the developer supplying roller is greater than the surface speed of the developing roller.

EFFECT: technical result consists in providing a process cartridge and an image forming device. The structure of the image forming device includes the developer which is located in the chamber containing the developer. The chamber containing the developer is located below the developing chamber. The developer is supplied into the developing chamber above the chamber containing the developer, thereby reducing the residual developer and the number of parts.

10 cl, 26 dwg