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US 7,116,927 B2Granted
Photosensitive drum of image forming apparatus and method of damping vibration in the drum
AssigneeSamsung Electronics Co., Ltd.
InventorJeong-Jai Choi
Life of this patent
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Abstract
A photosensitive drum of an image forming apparatus includes a drum main body having a hollow shape, and a vibration damping body spaced from an inner wall of the drum main body, having a hollow shape, formed with a plurality of slits, and expanding and closely contacting the inner wall of the drum main body while the drum main body rotates.
Claims20
A photosensitive drum of an image forming apparatus, comprising:
- a drum main body having a hollow shape and an internal diameter;
- and
- a vibration damping body insertable into the drum main body, the vibration damping body having an outer diameter which is smaller than the internal diameter of the drum main body while the drum main body is not rotating, and, the vibration damping body having a plurality of slits, and expanding and contacting the inner wall of the drum main body while the drum main body rotates.
A method of dampening vibration in an image forming apparatus comprising the steps of:
- inserting a vibration damping body into the hollow opening of a cylindrical photosensitive drum so that the vibration damping body is spaced apart from the inner wall of the photosensitive drum;
- securing the vibration damping body into the cylindrical photosensitive drum;
- and
- expanding the vibration damping body to contact the inner wall of the photosensitive drum as the photosensitive drum rotates.
1 more element
A photosensitive drum of an image forming apparatus, comprising:
- a cylindrical drum body having an inner wall, the cylindrical drum body having an internal diameter;
- a vibration damping body disposed inside the drum body, the vibration damping body having an outer diameter which is smaller than the internal diameter of the drum body;
- and
- a pair of couplers for coupling ends of the vibration damping body to the drum body,
- wherein the vibration damping body expands and contacts the inner wall of the drum body while the drum body rotates.
2 more elements
Dependencies are inferred from the claim text.