US Patent 11500324 Cartridge and electrophotographic image forming apparatus
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Patent Inventor Names
Noriyuki Komatsu0
Shunsuke Uratani0
Toru Oguma0
Edits on 16 Nov, 2022
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US Patent 11500324 Cartridge and electrophotographic image forming apparatus
Article
A cartridge and a drum unit include a drum flange provided at one end portion of a photosensitive drum and a coupling member operatively connected to the drum flange, with the coupling member being configured to transmit a driving force to the drum flange. A coil spring urges the coupling member. At least a part of the coil spring surrounds at least a part of a shaft portion of the coupling member. An extent of the coil spring that surrounds the shaft portion and an extent of the shaft portion that is surrounded by the coil spring are positioned within a hollow interior portion of the drum flange.
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Patent Jurisdiction
Patent Number
115003240
Date of Patent
November 15, 2022
0Patent Application Number
173788770
Date Filed
July 19, 2021
0Patent Citations
Patent Primary Examiner
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