DRUM UNIT, PROCESS CARTRIDGE AND IMAGE FORMING DEVICE Russian patent published in 2019 - 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 drum unit used with process cartridge, process cartridge containing drum unit and image forming device, containing drum unit. Drum unit comprises: light-sensitive drum having axis L1 and connecting element having axis L2 and connected to end part of said light-sensitive drum, wherein said connecting element is provided with a protrusion extending towards the end part of said connecting element, 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, 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 is the more distant from axis L2, than it is further from said photosensitive drum in direction of axis L1.

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

110 cl, 25 dwg