DRUM UNIT, PROCESS CARTRIDGE AND IMAGE FORMING DEVICE Russian patent published in 2021 - IPC G03G15/00 

FIELD: image forming devices.

SUBSTANCE: present invention relates to an image forming device for forming an electrophotographic image, a process cartridge and a drum unit. Disclosed group of inventions includes variants of cartridges. Cartridge comprises: light-sensitive drum having axis L1, connecting element, having axis L2 and functionally connected to end part of said photosensitive drum, wherein said connecting element is provided with a protrusion extending towards the end part of said connecting element, and frame, supporting with possibility of rotation said light-sensitive drum, wherein said connecting element is configured to move along axis L2 between first position and second position, in which said projection is closer to said photosensitive drum than in first position, in direction of axis L1, wherein said protrusion is provided with a force receiving portion for receiving a rotary force and an outer surface facing away from the axis L2, and wherein at least part of outer surface increases along distance from axis L2 as distance from said photosensitive drum increases in direction of axis L1.

EFFECT: technical result consists in improvement of technology transfer of driving force from the main unit of cartridge.

33 cl, 25 dwg