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Fixing device and image forming apparatus

A ring-shaped, toner-like technology, applied in the direction of electric recording process applying charge pattern, equipment of electric recording process applying charge pattern, electric recording technique, etc. Offset, the effect of improving detachability

Inactive Publication Date: 2007-05-30
FUJIFILM BUSINESS INNOVATION CORP
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  • Abstract
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  • Claims
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Problems solved by technology

If the following toner image is against this area, image shift occurs and the toner may be firmly fixed on the heated roller

Method used

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  • Fixing device and image forming apparatus
  • Fixing device and image forming apparatus
  • Fixing device and image forming apparatus

Examples

Experimental program
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Embodiment Construction

[0040] Exemplary embodiments of the present invention will be described below with reference to the accompanying drawings.

[0041] FIG. 1 is a schematic configuration diagram showing an image forming apparatus according to a first exemplary embodiment of the present invention. The image forming apparatus includes a cylindrical photosensitive drum 1 (image carrier). After the photosensitive drum 1 is uniformly charged, by irradiating the photosensitive drum 1 with image light, a latent image is formed on the surface of the photosensitive drum 1 . Around the photosensitive drum 1, a charging device 2, an exposure device 3, a developing device 4, a transfer roller 5, and a cleaning device 6 are provided. The charging device 2 uniformly charges the surface of the photosensitive drum 1 . The exposure device 3 applies image light to the photosensitive drum 1 to form a latent image on the surface of the photosensitive drum 1 . The developing device 4 makes visible the electrostat...

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Abstract

A fixing device includes a heating rotation body, a heat source and a pressurization member. The heating rotation body has an endless peripheral surface that moves circularly. The heat source heats the heating rotation body. The pressurization member is in pressure-contact with the peripheral surface of the heating rotation body to press a recording medium, which passes through a nip between the pressurization member and the heating rotation body, against the peripheral surface of the heating rotation body. The pressurization member includes a base material and plural layers deposited on the base material. A volume resistance of a surface layer forming a surface of the pressurization member is larger than that of a layer disposed just below the surface layer. The layer disposed just below the surface layer is grounded.

Description

technical field [0001] The present invention relates to a fixing device for heating and pressurizing a toner image by selectively injecting toner to form a fixed image, and an image forming apparatus using the same. Deposition is formed on a latent image based on an electrostatic potential difference, and the toner image is transferred onto a recording medium. Background technique [0002] In an electrophotographic image forming apparatus, image light is applied to a charged surface of a photosensitive drum. Thus, an electrostatic latent image is formed. Then, the toner is electrostatically transferred onto the electrostatic latent image. Thus, a toner image is formed on the photosensitive drum. Then, the toner image is transferred onto the recording medium directly or through an intermediate transfer body, and is fixed on the recording medium. [0003] The following fixing devices for fixing an unfixed toner image on a recording medium have been widely used. That is, t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G03G15/20
CPCG03G2215/2048G03G15/2057
Inventor 井上彻柿岛彩栗田笃实山田哲夫
Owner FUJIFILM BUSINESS INNOVATION CORP
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