Developing roller, process cartridge, electrophotographic image forming apparatus, and electrophotographic image forming system
AssigneeKonica Minolta, Inc.
InventorsMichiaki Ishikawa, Akihiko Itami, Aya Shirai
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Abstract
A developing roller for an electrophotographic image forming apparatus, which conveys a developer, wherein the developing roller includes a developing sleeve and a member that generates a magnetic flux inside the developing sleeve, and the developing sleeve contains an aluminum alloy containing more than 0.6% by mass of silicon.
Claims7
A developing roller for an electrophotographic image forming apparatus, which conveys a developer, wherein
- the developing roller comprises a developing sleeve and a member that generates a magnetic flux inside the developing sleeve,
- the developing sleeve contains an aluminum alloy containing more than 0.6% by mass of silicon, and
- grooves are formed on a surface of the developing sleeve.
A process cartridge comprising a developing roller that conveys a developer, wherein
- the developing roller includes a developing sleeve and a member that generates a magnetic flux inside the developing sleeve,
- the developing sleeve contains an aluminum alloy containing more than 0.6% by mass of silicon, and
- grooves are formed on a surface of the developing sleeve.
An electrophotographic image forming apparatus comprising a developing roller that conveys a developer, wherein
- the developing roller includes a developing sleeve and a member that generates a magnetic flux inside the developing sleeve,
- the developing sleeve contains an aluminum alloy containing more than 0.6% by mass of silicon, and
- grooves are formed on a surface of the developing sleeve.
An electrophotographic image forming system comprising:
- an apparatus including a developing roller that conveys a developer;
- and a toner for developing an electrostatic latent image, wherein
- the developing roller includes a developing sleeve and a member that generates a magnetic flux inside the developing sleeve,
- the developing sleeve contains an aluminum alloy containing more than 0.6% by mass of silicon, and
- a glass transition temperature of the toner for developing an electrostatic latent image is in a range of 0 to 40° C.
Dependencies are inferred from the claim text.