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US 6,748,192 B2Granted
Image heating apparatus having metallic rotary member contacting with heater
AssigneeCanon Kabushiki Kaisha
InventorsSatoru Izawa, Akihito Kanamori, Hiroshi Kataoka, Eiji Uekawa, Shinji Hashiguchi
Life of this patent
Estimating the term…
Abstract
The image heating apparatus has a heater and a rotary member rotated while contacting with the heater, and the rotary member has a metal layer contacting with the heater. In the image heating apparatus, a surface roughness Rz of a contact surface of the metal layer with the heater is 3 μm or less.
Claims15
An image heating apparatus comprising:
- a heater;
- and
- a rotary member rotated while contacting with said heater, said rotary member having a metal layer contacting with said heater,
- wherein a surface roughness Rz of a contact surface of said metal layer with said heater is 3 μm or less, and
- wherein the surface roughness Rz of a surface on a side of said metal layer which does not contact with said heater is 3 μm or less.
2 more elements
A rotary member for use in an image heating apparatus having:
- a metal layer lying on an innermost surface of said rotary member,
- wherein a surface roughness Rz of an inner peripheral surface of said metal layer is 3 μm or less, and
- wherein a surface roughness Rz of an outer peripheral surface of said metal layer 3 μm or less.
Dependencies are inferred from the claim text.