DRUM UNIT, CARTRIDGE, DEVICE FOR GENERATING ELECTROPHOTOGRAPHIC IMAGES AND COUPLING ELEMENT Russian patent published in 2021 - IPC G03G21/16 

FIELD: imaging equipment.

SUBSTANCE: group of inventions relates to an image-forming device. The drum unit includes a photosensitive drum and a coupling element. The coupling element includes a gearing element having a fragment of receiving the driving force, which allows entry into the groove of the drive shaft to receive the driving force for a rotating photosensitive drum. The coupling element includes a holding element made with the ability to hold the engaged element in such a way that it is sliding, at least in the radial direction of the drum assembly.

EFFECT: invention achieves improved transmission of the driving force in the cartridge drum assembly.

180 cl, 57 dwg