PROCESS CARTRIDGE, ELECTROPHOTOGRAPHIC IMAGE FORMING DEVICE AND ELECTROPHOTOGRAPHIC PHOTOSENSITIVE DRUM UNIT Russian patent published in 2020 - IPC G03G21/18 

FIELD: physics; electrical engineering.

SUBSTANCE: present invention relates to a process cartridge, an electrophotographic image forming apparatus, and an electrophotographic photosensitive drum unit. Disclosed process cartridge, installed with possibility of electrophotographic image forming device removing into the main assembly, which includes drive shaft, having rotary force-applying part, by movement in installation direction, substantially perpendicular to axis of said drive shaft, wherein said process cartridge comprises: a light-sensitive drum rotating about the axis of the drum, a connecting member provided in the axial end portion of said photosensitive drum and rotated around axis of connecting element so as to transmit driving force from drive shaft to said photosensitive drum, wherein said connecting element is adapted to move relative to said light-sensitive drum between first position, in which said axis of connecting element is coaxial with said axis of drum, and a second position, in which said axis of the connecting member is not coaxial with said drum axis, and a portion with an opening surrounding said connecting member, wherein said part with opening is provided with recess which is recessed along installation direction away from said drum axis, and wherein the movement range of the connecting member from the drum axis along the installation direction towards the recess is greater than the movement distance of the connecting member from the drum axis along the other direction.

EFFECT: technical result consists in improvement of efficiency of technical maintenance of image forming device due to possibility of user to efficiently perform maintenance operation of device, as well as providing accuracy of rotation of electrophotographic photosensitive drum.

7 cl, 35 dwg