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|1. (WO2018037575) DRUM UNIT, CARTRIDGE, ELECTROPHOTOGRAPHIC IMAGE FORMING DEVICE, AND COUPLING MEMBER|
|Applicants:||CANON KABUSHIKI KAISHA
|Title:||DRUM UNIT, CARTRIDGE, ELECTROPHOTOGRAPHIC IMAGE FORMING DEVICE, AND COUPLING MEMBER|
This drum unit is configured to be attachable/detachable with respect to the body of an electrophotographic image forming device, and has a photoreceptor drum and a coupling member provide to the photoreceptor drum. The coupling member has a drive force receiving part and a support part which movably supports the drive force receiving part. The support part has a first extension part and a second extension part that extend at least in the axial direction of the photoreceptor drum. The first and second extension parts are arranged so as to extend in mutually different directions in the axial direction.