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US 11,762,330 B2Granted
Drum unit, cartridge and coupling member
AssigneeCanon Kabushiki Kaisha
InventorsTetsuo Uesugi, Makoto Hayashida, Koji Yamaguchi, Takashi Yano
Life of this patent
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Abstract
A coupling member is provided for a cartridge that includes a cylindrical photosensitive drum that is rotatable about an axis. The coupling member is operatively connected to the photosensitive drum and is capable of receiving a rotational force for rotating the photosensitive drum.
Claims8
A cartridge comprising:
- a casing;
- a developing roller rotatably supported by the casing;
- and
- a coupling member operatively connected to the developing roller, the coupling member being rotatable about a rotational axis thereof, the coupling member including (i) a cylindrical portion, (ii) a first projection at least partially positioned inside of the cylindrical portion, (iii) a second projection at least partially positioned inside of the cylindrical portion, and (iv) an aligner at least partially positioned inside of the cylindrical portion, the aligner including a surface that faces the rotational axis of the coupling member,
- wherein a distance between at least one of the first and second projections and the aligner is changeable,
- wherein, along a line perpendicular to the rotational axis of the coupling member, the first projection is open to the rotational axis of the coupling member, and
- wherein, along a line perpendicular to the rotational axis of the coupling member, the second projection is open to the rotational axis of the coupling member.
4 more elements
Dependencies are inferred from the claim text.