PROCESS CARTRIDGE, ELECTROPHOTOGRAPHIC IMAGE FORMING DEVICE AND ELECTROPHOTOGRAPHIC PHOTOSENSITIVE DRUM UNIT Russian patent published in 2021 - IPC G03G21/18 

FIELD: physics.

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 removal into main unit, which includes drive shaft having rotary force applying part, by moving in installation direction, substantially perpendicular to axis of said drive shaft, wherein said process cartridge comprises: light-sensitive drum rotating around drum axis, connecting element provided in axial end part of said photosensitive drum and rotating around axis of connecting element so as to transmit driving force from drive shaft to said photosensitive drum, wherein said connecting member is adapted to move relative to said light-sensitive drum between a first position in which said axis of the connecting member is coaxial with said drum axis, and a second position, in which said axis of the connecting member is not coaxial with said drum axis and part with an opening surrounding said connecting member, wherein said part with hole is provided with recess which is recessed along recess direction, substantially perpendicular to said drum axis, away from said drum axis, and wherein the movement range of the connecting member in a direction away from the drum axis towards the recess is greater than the movement range of the connecting member in other direction away from said drum axis towards other part of said part with hole than said recess.

EFFECT: technical result consists in increasing the operability of the maintenance of the image forming apparatus by enabling the user to efficiently perform the maintenance operation of the device, as well as providing electrophotographic photosensitive drum rotation accuracy.

8 cl, 35 dwg