IMAGE FORMING DEVICE AND PROCESS CARTRIDGE Russian patent published in 2020 - IPC G03G7/00 

FIELD: image forming devices.

SUBSTANCE: present invention relates to an image forming device and a process cartridge which is detachably mounted in an image forming apparatus. Disclosed group of inventions includes a process cartridge detachably mounted in a main assembly of an image forming apparatus and an imaging system, comprising an image forming device for forming an image on the recording material and a process cartridge detachably mounted in the main assembly of the image forming device. Image forming device includes engaging part, process cartridge includes: first unit with image bearing part, second unit with developer carrying part, wherein second unit is rotatably connected to first unit to be movable between contact position, in which said developer carrying developer is in contact with said part carrying image and spaced apart position, in which said developer carrying part is spaced from said image bearing part, and force receiving portion capable of engaging with engaging part, for receiving force from the engaging part to move the second unit from the contact position to the spaced position, wherein the force-receiving portion is provided on the second unit, wherein, when process cartridge is installed in said main assembly, and second unit is in contact position, image bearing part and a force-receiving portion are located on the lower side of the process cartridge, and wherein when the process cartridge is mounted in said main assembly, and second unit is in contact position, force receiving section faces upwards to side, where relative to line tangential to force receiving section, as seen along the developer developing part axial direction, the second unit axis of rotation is provided, so that engaging part and force receiving section are attracted to each other at engagement with each other.

EFFECT: technical result consists in simplifying the design of the mechanism for separating (releasing) the developer carrying member and the image bearing element of the process cartridge to provide combination of image forming device and process cartridge, which has reduced dimensions, and also in enabling the correct installation of the process cartridge in the main assembly and in preventing the uneven development of the latent image on the photosensitive drum.

28 cl, 35 dwg, 1 tbl