Fixing method, fixing apparatus and image formation device

An image and fixing roller technology, applied to the electrical recording process using the charge pattern, equipment and instruments for the electric recording process using the charge pattern, etc.

Inactive Publication Date: 2005-09-07
RICOH KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0035] The above-mentioned problem of angle change entering the fixing contact portion N also occurs in the heat roller fixing method.

Method used

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  • Fixing method, fixing apparatus and image formation device
  • Fixing method, fixing apparatus and image formation device
  • Fixing method, fixing apparatus and image formation device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0111] Embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0112] first refer to Figure 4 The overall configuration and functions of a color copier as an image forming apparatus will be briefly described.

[0113] Writing optical unit 300 as an exposure device converts color image data from color scanner 200 into optical signals, performs optical writing corresponding to a document image, and forms an electrostatic latent image on photoreceptor 302 as an image carrier. The writing optical unit 300 is composed of a laser diode 304, a polygon mirror 306 and its rotation motor 308, an f / θ lens 310, a reflection mirror 312, and the like.

[0114] As shown by the arrow in the figure, the photoreceptor 302 rotates in the counterclockwise direction, and the photoreceptor cleaning assembly 314, the discharge lamp 316, the potential sensor 320, and the developer selected in the rotary developing device 322 are arranged...

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PUM

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Abstract

The present invention relates to a fixing method, fixing apparatus, and image formation device. The fixing belt 408 racks between the fixing roller 402 and heating roller 406. The pressure roller 412 pushes the fixing roller to form a second fixing-process area. The supporting roller 416 contacts inside the fixing belt 408 and winds the fixing belt around a surface of the pressure roller 412 to form a first fixing-process area. The pressure applying member applies a pressure to the heat roller in a direction opposite to an ejection of the recording sheet to adjust a fixing pressure of the pressure applying member to set a optimum fixing pressure not to generate a crinkle. The pressure roller has a hard structure not easier to deform than the fixing roller and improve the reproducibility and stability of linear velocity in fixing.

Description

technical field [0001] The present invention relates to a fixing method for fixing a recording material by heat and pressure while conveying it, a fixing device, and an image forming apparatus such as a copying machine, a printer, and a facsimile using the fixing device. Background technique [0002] As such a fixing device, a heat roller fixing method is widely known, in which a fixing roller provided with a heat source and a pressure roller are pressure-contacted to form a fixing contact portion, and the recording material is sandwiched and conveyed at the fixing contact portion while passing heat and heat. pressure for fixation. [0003] In the hot roller fixing method, generally, only the surface of the pressure roller in contact with the non-image surface of the recording material has an elastic layer for forming a fixing contact portion, and the fixing roller in contact with the image surface of the recording material has a specific pressure. The hard structure of the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G03G15/20
CPCG03G2215/2041G03G2215/2016G03G2215/2032G03G15/2064G03G15/206G03G15/2053
Inventor 蜂须贺利治山田正道
Owner RICOH KK
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