Image forming apparatus
US-2024345519-A1 · Oct 17, 2024 · US
Image forming apparatus
US8995859B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8995859-B2 |
| Application number | US-201113324203-A |
| Country | US |
| Kind code | B2 |
| Filing date | Dec 13, 2011 |
| Priority date | Dec 15, 2010 |
| Publication date | Mar 31, 2015 |
| Grant date | Mar 31, 2015 |
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- Title
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- Abstract
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Abstract
Official abstract text for this publication.
An image forming apparatus includes a fixing portion for fixing an unfixed image formed on a sheet. The fixing portion includes an endless belt, a heater contacting the inner surface of the belt and including first and second heat generators, and a pressor forming a fixing nip with the heater for nipping and feeding the sheet. The apparatus also includes a controller for controlling electric power supplied to the first and second heat generators. The controller controls the first and second heat generators independently from each other. The apparatus sets a plurality of feeding speeds of the sheet, and the controller changes the difference between the times at which electric power is supplied to the first and second heat generators in accordance with the sheet feeding speed.
First claim
Opening claim text (preview).
What is claimed is: 1. An image forming apparatus comprising: a fixing portion configured to fix an unfixed image formed on a recording material thereon, said fixing portion including, an endless belt, a heater configured to contact an inner surface of said endless belt, said heater including a first heat generating element configured to generate heat by electric power supplied from an AC power source and a second heat generating element configured to generate heat by the elect…
Assignees
Inventors
Classifications
Physics · mapped topic
- G03G15/5004Primary
Physics · mapped topic
Physics · mapped topic
- G03G15/205Primary
Physics · mapped topic
Physics · mapped topic
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Frequently asked questions
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- What does patent US8995859B2 cover?
- An image forming apparatus includes a fixing portion for fixing an unfixed image formed on a sheet. The fixing portion includes an endless belt, a heater contacting the inner surface of the belt and including first and second heat generators, and a pressor forming a fixing nip with the heater for nipping and feeding the sheet. The apparatus also includes a controller for controlling electric po…
- Who is the assignee on this patent?
- Ogura Ryota, Canon Kk
- What technology area does this patent fall under?
- Primary CPC classification G03G15/5004. Mapped technology areas include Physics.
- When was this patent published?
- Publication date Tue Mar 31 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).