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US 7,099,607 B2Granted
Cartridge, and toner container
AssigneeCanon Kabushiki Kaisha
InventorsAkira Suzuki, Osamu Anan
Life of this patent
Estimating the term…
Abstract
A first component part formed of a first styrene resin composition and a second component part formed of a second styrene resin composition are fastened by solvent welding by means of a terpene type solvent, to provide a cartridge which is almost free of deformation at the peripheries of joints, has a high positioning precision for component parts and has a high rigidity.
Claims28
The cartridge comprising:
- a first component part formed of a first styrene resin composition;
- and
- a second component part formed of a second styrene resin composition:
- wherein said cartridge is detachably mountable to a main body of an electrophotographic image forming apparatus,
- wherein said first component part and said second component part are joined at joint surfaces;
- wherein said joint surfaces are terpene-type-solvent-welded joint surfaces disposed in contact with or in proximity to each other during feeding of a terpene-type solvent to at least a portion thereof before solvent welding,
- wherein at least one of the joint surface of said first component part and the joint surface of said second component part is provided with unevenness to facilitate the feeding of the terpene-type solvent,
- wherein said unevenness has a depth of from 20 μm to 40 μm as average roughness Rz.
5 more elements
The cartridge comprising:
- a first component part formed of a first styrene resin composition;
- and
- a second component part formed of a second styrene resin composition;
- wherein said cartridge is detachably mountable to a main body of an electrophotographic image forming apparatus,
- wherein said first component part and said second component part are joined at joint surfaces;
- wherein said joint surfaces are terpene-type-solvent-welded joint surfaces disposed in contact with or in proximity to each other during feeding of a terpene-type solvent to at least a portion thereof before solvent welding, and
- wherein said first component part is a bearing member which supports an image bearing member and said second component part is a frame member which supports said bearing member.
4 more elements
Dependencies are inferred from the claim text.