Fixing device and image forming apparatus
US-9207594-B2 · Dec 8, 2015 · US
Fixing apparatus
US8942589B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8942589-B2 |
| Application number | US-201313752742-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jan 29, 2013 |
| Priority date | Jan 31, 2012 |
| Publication date | Jan 27, 2015 |
| Grant date | Jan 27, 2015 |
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- Title
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Abstract
Official abstract text for this publication.
A fixing apparatus includes a film, a heater that contacts the inner face of the film and is capable of changing heat distribution, and a pressure member that forms the nip portion with the heater via the film, the pressure member including a region on which a diameter is increased from a center portion toward an end portion, wherein the fixing apparatus performs heater control so that a ratio of an amount of heat generation at the end portion of the heater to an amount of heat generation at the center portion of the heater is changed based on a temperature of the end portion of the pressure member, during a period at least from when the warm-up of the fixing apparatus is started until the recording material reaches the nip portion.
First claim
Opening claim text (preview).
What is claimed is: 1. A fixing apparatus for fixing a toner image on a recording material while conveying the recording material bearing the toner image at a nip portion, the fixing apparatus comprising: a cylindrical film; a heater configured to heat the cylindrical film, the heater being capable of changing a heat distribution in a generatrix direction of the cylindrical film; a pressure roller configured to form the nip portion between the cylindrical film and the pressure…
Assignees
Inventors
Classifications
- G03G15/2078Primary
Physics · mapped topic
Physics · mapped topic
Physics · mapped topic
Physics · mapped topic
- G03G15/2039Primary
Physics · mapped topic
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Frequently asked questions
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- What does patent US8942589B2 cover?
- A fixing apparatus includes a film, a heater that contacts the inner face of the film and is capable of changing heat distribution, and a pressure member that forms the nip portion with the heater via the film, the pressure member including a region on which a diameter is increased from a center portion toward an end portion, wherein the fixing apparatus performs heater control so that a ratio …
- Who is the assignee on this patent?
- Canon Kk
- What technology area does this patent fall under?
- Primary CPC classification G03G15/2078. Mapped technology areas include Physics.
- When was this patent published?
- Publication date Tue Jan 27 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).