Image forming apparatus, image forming method and non-transitory computer-readable storage medium
US-9223279-B2 · Dec 29, 2015 · US
Image forming apparatus
US9632463B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9632463-B2 |
| Application number | US-201514984653-A |
| Country | US |
| Kind code | B2 |
| Filing date | Dec 30, 2015 |
| Priority date | Jan 28, 2015 |
| Publication date | Apr 25, 2017 |
| Grant date | Apr 25, 2017 |
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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 according to an embodiment includes, a fixing roller including a heat generation source, supplying heat to a printing object, and fixing toner on the printing object, an opposing roller opposed to the fixing roller to hold the printing object between the opposing roller and the fixing roller, a heat exchange roller containing a heat storage material capable of changing in between a liquid and a solid phase, a sensor capable of sensing a temperature of the fixing roller; and a driving unit causing the heat exchange roller to abut against the fixing roller and separating the heat exchange roller from the fixing roller, in accordance with the temperature of the fixing roller sensed by the sensor.
First claim
Opening claim text (preview).
What is claimed is: 1. An image forming apparatus comprising: a fixing roller including a heat generation source, supplying heat to a printing object, and fixing toner on the printing object; an opposing roller opposed to the fixing roller to hold the printing object between the opposing roller and the fixing roller; a heat exchange roller containing a heat storage material capable of changing in phase between liquid and solid; a sensor capable of sensing a temperature of the fixing roller, the sensor including a first sensing unit sensing a temperature of an end portion of the fixing roller in an axial direction and a second sensing unit sensing a temperature of the heat exchange roller; a driving unit causing the heat exchange roller to abut against the fixing roller and separating the heat exchange roller from the fixing roller, in accordance with the temperature of the fixing roller sensed by the sensor; and a controller which controls the driving unit to make the heat exchange roller abut against the fixing roller, when a second temperature sensed by the second sensing unit is higher than a first temperature sensed by the first sensing unit while heating of the fixing roller is stopped. 2. The image forming apparatus according to claim 1 , wherein the heat storage material has a phase change temperature higher than a melting point of the toner. 3. The image forming apparatus according to claim 1 , wherein the heat storage material is one of erythritol and mannitol.
Assignees
Inventors
Classifications
- G03G15/2039Primary
with means for controlling the fixing temperature · CPC title
specially for the axial heat partition · CPC title
combined with pressure · CPC title
Structural details of the fixing unit in general, e.g. cooling means, heat shielding means (G03G15/2053 takes precedence) · CPC title
Physics · mapped topic
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Frequently asked questions
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- What does patent US9632463B2 cover?
- An image forming apparatus according to an embodiment includes, a fixing roller including a heat generation source, supplying heat to a printing object, and fixing toner on the printing object, an opposing roller opposed to the fixing roller to hold the printing object between the opposing roller and the fixing roller, a heat exchange roller containing a heat storage material capable of changin…
- Who is the assignee on this patent?
- Toshiba Kk
- What technology area does this patent fall under?
- Primary CPC classification G03G15/2039. Mapped technology areas include Physics.
- When was this patent published?
- Publication date Tue Apr 25 2017 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).