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Fixing device, and image forming device including the fixing device

一种油辊、旋转部件的技术，应用在图像形成装置领域，能够解决油层产生斑点等问题

Active Publication Date: 2016-02-17
SHARP KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, if paper dust or toner adheres to the surface of the rotating member or the surface of the oil roller, unevenness may occur on these surfaces, and the oil roller cannot ride over the unevenness and slips and stops, or deviation occurs in the rotation of the oil roller. Spotting in the oil layer that forms on the surface of rotating parts

Method used

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  • Fixing device, and image forming device including the fixing device
  • Fixing device, and image forming device including the fixing device
  • Fixing device, and image forming device including the fixing device

Examples

Experimental program
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Effect test

Embodiment Construction

[0035] Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

[0036] figure 1 It is an enlarged cross-sectional view showing a main part of an image forming apparatus to which an embodiment of a fixing device according to the present invention is applied. The image forming apparatus 1 is an electrophotography-based apparatus and includes a photoreceptor drum 2 , a transfer belt 3 , a fixing device 4 , and the like. The photoreceptor drum 2 has a photosensitive layer on its surface, and is rotationally driven in the arrow direction A at a constant rotational speed. As the photoreceptor drum 2 rotates, the surface of the photoreceptor drum 2 is uniformly charged to a predetermined potential by a charging device (not shown), and the surface of the photoreceptor drum 2 is exposed by an exposure device (not shown). An electrostatic latent image is formed on the surface, and the electrostatic latent image on the surface of t...

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PUM

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Abstract

The fixing device of the present invention has two pressure rollers (6) and the fixing roller (7) that are in pressure contact with each other, and an oil roller (8) that is in pressure contact with one of the pressure roller (6) and the fixing roller (7). The recording paper passes through the nip between the pressing roller (6) and the fixing roller (7), thereby fixing the toner on the recording paper. The fixing device includes: pressing roller gear (21) and oil The roller gear (22) transmits the rotation of the shaft of the pressure roller (6) which is in contact with the oil roller (8) to the shaft of the oil roller (8); and the one-way clutch (23), which passes through the pressure roller ( 6) When the oil roller (8) is driven to rotate due to pressure contact with the oil roller (8), the oil roller (8) is idling in the direction of the driven rotation.

Description

technical field [0001] The present invention relates to two rotating parts that are in pressure contact with each other and an oil roller that is in pressure contact with one of the rotating parts, and the recording paper is passed through the nip between the rotating parts, so as to clean the toner on the recording paper A fixing device for fixing, and an image forming apparatus including the fixing device. Background technique [0002] Such a fixing device is applied to, for example, an electrophotography image forming device. The recording paper on which the toner image has been transferred is sandwiched between rotating members (belts or rollers) to heat and pressurize the recording paper so that Fix the toner image on it. [0003] In such a fixing device, in order to prevent the toner of the recording paper from transferring to and adhering to the surface of the rotating member, an oil roller may be brought into contact with the rotating member to apply oil to the surf...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G03G15/20
CPCG03G15/2025G03G15/206G03G15/2053
Inventor 浅川昌也中村博一山中孝师
Owner SHARP KK