Fixing device, image forming apparatus incorporating same, and fixing method

US8958710B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-8958710-B2
Application numberUS-201313747906-A
CountryUS
Kind codeB2
Filing dateJan 23, 2013
Priority dateFeb 9, 2012
Publication dateFeb 17, 2015
Grant dateFeb 17, 2015

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  1. Title

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  2. Abstract

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  4. Key dates

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  5. First independent claim

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Abstract

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A fixing device includes a controller connected to a heater and at least one of a pressing rotary body and an endless rotary body. The controller performs a first fixing operation, a first transition operation, a second fixing operation, and a second transition operation. The first fixing operation fixes a toner image on a first recording medium after the fixing device is powered on. The first transition operation rotates the pressing rotary body and the endless rotary body while controlling the heater to maintain the endless rotary body at a predetermined temperature for a first duration time. The second fixing operation fixes a toner image on a second recording medium. The second transition operation rotates the pressing rotary body and the endless rotary body while controlling the heater to maintain the endless rotary body at the predetermined temperature for a second duration time smaller than the first duration time.

First claim

Opening claim text (preview).

What is claimed is: 1. A fixing device comprising: a pressing rotary body rotatable in a predetermined direction of rotation; a hollow, endless rotary body contacting the pressing rotary body and rotatable in a direction counter to the direction of rotation of the pressing rotary body; a heater disposed opposite and heating the endless rotary body; a nip formation assembly disposed opposite an inner circumferential surface of the endless rotary body and pressing against the…

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What does patent US8958710B2 cover?
A fixing device includes a controller connected to a heater and at least one of a pressing rotary body and an endless rotary body. The controller performs a first fixing operation, a first transition operation, a second fixing operation, and a second transition operation. The first fixing operation fixes a toner image on a first recording medium after the fixing device is powered on. The first …
Who is the assignee on this patent?
Yuasa Shuutaroh, Uchitani Takeshi, Hase Takamasa, and 17 more
What technology area does this patent fall under?
Primary CPC classification G03G15/2064. Mapped technology areas include Physics.
When was this patent published?
Publication date Tue Feb 17 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).