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Fixing member, fixing device and image forming apparatus

A component and heating component technology, applied in the field of fixing devices, imaging equipment, and fixing components, can solve problems such as wrinkling of recording paper

Inactive Publication Date: 2010-06-02
FUJIFILM BUSINESS INNOVATION CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] When an image is formed by an electrophotographic system, since the fixing device is equipped with at least one pair of fixing members placed in the image forming apparatus and positioned to face each other so as to form contact portions thereof, the recording paper on which the image is formed may be wrinkled

Method used

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  • Fixing member, fixing device and image forming apparatus
  • Fixing member, fixing device and image forming apparatus
  • Fixing member, fixing device and image forming apparatus

Examples

Experimental program
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no. 1 example -

[0363] Figure 18 is a schematic diagram of an image forming apparatus according to a first embodiment of the present invention. exist Figure 18 The image forming apparatus 200 shown in includes: a latent image holding member 207; a charging device 208 for charging the latent image holding member 207 by a contact charging system; a power source 209 connected to the charging device 208; A device 210 for exposing the latent image holding member 207 charged by the charging device 208 to form an electrostatic latent image; a developing device 211 for exposing the electrostatic latent image formed by the exposure device 210 to image development to form a toner image; a transfer device 212 for transferring the toner image formed by the developing device 211 to an image receiving medium; a cleaning device 213; a static eliminator 214 and this Invented fixing device 215. Although in Figure 18 is not shown in , but this image forming apparatus is also provided with a toner supply...

no. 2 example -

[0373] Figure 19 is a schematic diagram of an image forming apparatus according to a second embodiment of the present invention. exist Figure 19 The image forming apparatus 220 shown in is an intermediate transfer type electrophotographic apparatus, and in a housing 400, four latent image holding members 401a to 401d (for example, yellow, magenta, cyan, and black images can be passed through the latent images, respectively). Image holding members 401 a , 401 b , 401 c , and 401 d ) are arranged parallel to each other along the intermediate transfer belt 409 .

[0374] In the image forming apparatus described above, four toner image forming units respectively corresponding to the above four colors are provided, and for example, the toner image forming unit for yellow includes a latent image holding member 401a, a charging roller 402a, a developing device 404a, a primary transfer roller 410a and a cleaning blade 415a.

[0375] The latent image holding member 401a is rotatab...

example 1

[0386]

[0387] The outer periphery of the cylindrical core material (material: CM-10; outer diameter: 26mm; wall thickness: 1.5mm; length: 400mm) made of aluminum is subjected to the following pretreatment: degrease with toluene, use a brush to apply Rubber primer (trade name: DY35-051A / B, manufactured by Dow Corning Toray Silicon is applied on the region of the elastic layer (the length of this region is 350mm, that is, the region of 25mm at both ends is removed from the total length of 400mm). , Co., Ltd. manufacturing). Next, this cylindrical core material was air-dried for 30 minutes, and baked in an oven at 150° C. for 30 minutes.

[0388] Subsequently, the pretreated cylindrical core material was inserted into a cylindrical metal sheath with an inner diameter of 27 mm, and the cylindrical core was fixed in the middle of the metal sheath by sintering the upper cover (cap flame) and lower cover sintering . In this state, liquid silicone rubber (trade name: DX35-2120A / ...

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Abstract

A fixing member, a fixing device and an image forming apparatus. The fixing member including: a substantially cylindrical support and one or more layers provided on or above the support, including a surface layer that constitutes the outermost surface, the fixing member having: a difference in the width direction of the support between the maximum value and minimum value of the total thickness ofthe support together with all the layers provided on or above the support being approximately 50 mum or less; the surface layer consisting of a seamless member comprising a fluorine-containing solid material, the composition of the fluorine-containing solid material varying in the width direction of the support; the average thickness of the surface layer being in the range of approximately 20 mumto approximately 50 mum; a difference in the width direction of the support between the maximum value and minimum value of the thickness of the surface layer being approximately 5 mum or less; and thedynamic friction coefficient on the surface of the surface layer at 120 DEG C. varying in the width direction of the support.

Description

technical field [0001] The present invention relates to a fixing member, a fixing device, and an image forming apparatus. Background technique [0002] When an image is formed by an electrophotographic system, since the fixing device is equipped with at least one pair of fixing members placed in the image forming apparatus and positioned to face each other so as to form contact portions thereof, the recording paper on which the image is formed may be wrinkled . Various methods have been proposed in order to prevent paper from being wrinkled. [0003] In the case of a fixing device using a roller as a fixing member, for example, there is known a method in which the fixing roller has an outer diameter in the axial direction that is larger as its position is closer to both end portions of the fixing member, while A shape that becomes smaller as it is positioned closer to the center of the fixing member, (hereinafter, this shape may be referred to as a "trunk shape"). [0004...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G03G15/20G03G15/00
CPCG03G2215/2058G03G2215/2038G03G15/2053G03G2215/2009G03G2215/2048
Inventor 木村润
Owner FUJIFILM BUSINESS INNOVATION CORP
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