Unlock instant, AI-driven research and patent intelligence for your innovation.

Fixing device and image forming apparatus

A technology of setting value and rotating parts, which can be applied to equipment of electric recording process applying charge pattern, electric recording process applying electric charge pattern, instruments, etc., and can solve problems such as rising cost.

Inactive Publication Date: 2012-07-04
KK TOSHIBA +1
View PDF1 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] However, in this case, it is necessary to provide two types of cores with different Curie points, and there is a problem of cost increase.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Fixing device and image forming apparatus
  • Fixing device and image forming apparatus
  • Fixing device and image forming apparatus

Examples

Experimental program
Comparison scheme
Effect test

no. 1 approach

[0048] Hereinafter, one embodiment of the present invention will be described with reference to the drawings. figure 1 is a perspective view of the image forming apparatus. The image forming apparatus 1 is equipped with an image reader 2 for reading an image to be read and an image forming section for forming an image. In addition, the image forming apparatus 1 is equipped on an upper portion with an operation panel 10 including a touch-panel-type display 6 and various types of operation keys 8 . The operation panel 10 is located on the side surface of the image forming apparatus 1 , that is, on the front side, that is, on the near side of the paper plane. The rear side of the image forming apparatus 1 is on the rear side of the paper plane. The right side of the image forming apparatus 1 is on the right side of the paper plane. The left side of the image forming apparatus 1 is on the left side of the paper plane.

[0049] The operation keys 8 of the operation panel 10 inc...

no. 2 approach

[0083] Focusing on the fact that the thickness Db of the plurality of sub-cores 51 is half the thickness Da of the plurality of main cores 50, the Figure 9 and Figure 10 Multiple main cores 50 of the structure are shown. The plurality of main cores 50 is a combination of two cores having the same width as the plurality of sub-cores 51 .

[0084] Since it is only necessary to prepare cores having the same shape as the plurality of sub-cores 51, it is sufficient to use only one die for forming the cores. Costs are also reduced at this point.

[0085] Other structures and functions are the same as those of the first embodiment. Therefore, its description is omitted.

no. 3 approach

[0087] Such as Figure 11 As shown, the thicknesses of the plurality of sub-cores 51 gradually decrease as they move away from the central portion of the heat belt 43, and are Dc, De, Df, and Dg in sequence. As the temperature rises, the plurality of sub-cores 51 of thickness Dg located at the endmost positions are in a magnetically saturated state earlier than the other sub-cores 51 .

[0088] Other structures and functions are the same as those of the first embodiment. Therefore, its description is omitted.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a fixing device and an image forming apparatus. Plural main cores and plural sub-cores are arranged spaced apart from each other along a direction orthogonal to a rotating direction of a heat belt. The plural main cores are opposed to a first area where a sheet having first width in the heat belt passes. The plural sub-cores are opposed to second areas that are areas excluding the first area in an area where the sheet having second width larger than the first width in the heat belt passes. The plural sub-cores have thickness in the direction orthogonal to the rotating direction of the heat belt smaller than the thickness of the plural main cores.

Description

[0001] This application claims U.S. Provisional Application No. 61 / 168,167, filed April 9, 2009, U.S. Provisional Application No. 61 / 183,645, filed June 3, 2009, U.S. Provisional Application No. Priority No. 61 / 183,648, the entire contents of which are hereby incorporated by reference. technical field [0002] The present invention relates to an induction heating method fixing device and an image forming apparatus equipped with the induction heating method fixing device. Background technique [0003] The image forming apparatus reads an image from a document, forms a toner image corresponding to the read image on a sheet, and fixes the toner image on the sheet by a fixing device. [0004] The above-mentioned fixing device takes the above-mentioned sheet between a rotating member such as a fixing roller or a belt and a pressing member such as a pressure roller, and fixes a toner image on the same sheet by applying heat and pressure to the sheet. [0005] An exciting coil for...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): G03G15/20
CPCG03G2215/2032G03G15/2064
Inventor 木野内聪菊地和彦中山浩山内洋亮横山秀治
Owner KK TOSHIBA