CN202837820U

CN202837820U - Improved structure of developer roller

Info

Publication number: CN202837820U
Application number: CN 201220397849
Authority: CN
Inventors: 刘江
Original assignee: FOSHAN ASCEND TECHNOLOGY Co Ltd
Current assignee: FOSHAN ASCEND TECHNOLOGY Co Ltd
Priority date: 2012-08-12
Filing date: 2012-08-12
Publication date: 2013-03-27
Anticipated expiration: 2022-08-12

Abstract

The utility model discloses an improved structure of a developer roller. The improved structure of the developer roller comprises a magnetic roller, an elastic layer and a silicon oxide film surface layer. The elastic layer is provided with two layers. The inner layer elastic layer is thicker and higher in hardness than the outer layer elastic layer. According to the technical scheme, the improved structure of the developer roller has the advantages that due to design of the two layers of the elastic layer, each physical property of the developer roller is capable of being greatly improved, and therefore developing effect on photoreceptors of the developer roller is improved.

Description

The structure-improved of developer roll

Technical field:

The utility model relates to a kind of structure-improved of developer roll.

Background technology:

In the past, utilized the image processing system of electrofax mode widely known.Its image forming course is to form electrostatic latent image in the surface as the photoreceptor of bearing member, but and come making its video behind the latent electrostatic image developing on the photoreceptor by the toner as developer, make its mounting toner image after the image after then will developing is transferred in the recording medium by transfer device.Afterwards, after the toner image of photographic fixing does not pass through the fixing device pressurization and/or heating on the recording medium, come the toner image on the recording medium is carried out photographic fixing.

Above-mentioned development work is finished by developer roll, developer roll and photoreceptor rolling crimping, rolling process, toner on the developer roll is adsorbed by the electrostatic latent image on the photoreceptor, form visual image, traditional developer roll consists of the developer roll of this unitary elasticity layer by magnetic roller, one deck elastic layer and one deck silicon oxide film top layer, its physics finite elastic can exert an influence to the development effect of photoreceptor.

Summary of the invention:

The purpose of this utility model is in order to overcome the shortcoming of above-mentioned prior art, a kind of physics elasticity excellence to be provided, to improve the developer roll to the photoreceptor development effect.

For achieving the above object, the technical scheme that the utility model provides is: the structure-improved of developer roll, include magnetic roller, elastic layer and silicon oxide film top layer, and elastic layer is provided with two-layer, and the internal layer elastic layer is thicker than outer elastomer layer.

The internal layer elastic layer is higher than the hardness of outer elastomer layer.

After adopting technique scheme, the utlity model has following advantage: by designing two-layer elastic layer, order is greatly improved to the physical properties of developer roll, thereby improves developer roll to the development effect of photoreceptor.

Description of drawings:

Fig. 1 is the structural representation of image processing system;

Fig. 2 is the structural representation of the utility model developer roll.

Embodiment:

Below, with reference to the accompanying drawings preferred implementation of the present utility model is described in detail.

As shown in Figure 1, image processing system 1 comprises: manuscript reading section 2 is used for reading the image on the original copy; Sheet feed section 4 is provided as the sheet material 6a of recording medium, and this sheet material 6a is the uppermost sheet material that is arranged in many sheet materials 6 of being piled up; Image formation department 3 is used for the sheet material 6a at sheet feed section 4, forms the image that manuscript reading section 2 reads; Fixing device 10 is to the uncertain image photographic fixing of these image formation department 3 formation.The image processing system 1 of present embodiment can separate image forming part 3 and sheet feed section 4.

Image forming part 3 comprises that 4 systems are intermediate transfer belt 15 and exposure device 16 as section 14 (14Y (yellow), 14C (cyan), 14M (carmetta), 14Bk (black)), transfer belt.

System comprises separately as the 14Y of section, 14C, 14M, 14Bk: photoreceptor 17 (17Y (yellow), 17C (cyan), 17M (carmetta), 17Bk (black)), be activated and move in the direction of the clock, play the function of picture bearing member; Charging part 18, be located at this photoreceptor 17 around; Development section 19; And, cleaning section 28 etc., system is toner image T with the toner formation image of different colours respectively as the 14Y of section, 14C, 14M, 14Bk.

Photoreceptor 17 is cylindrical, is subject to not shown drive source and drives and rotate.The outer surface of photoreceptor 17 is provided with photographic layer, when the outer surface of photoreceptor 17 is exposed the some irradiation of the light beam that is represented by dotted lines of device 16 emissions, is written into the electrostatic latent image corresponding with image information on the outer surface of photoreceptor 17.

Charging part 18 adopts the contact device, and it comes photoreceptor 17 chargings are made photoreceptor 17 outer surface uniform chargeds by contact.Developer roll 19 adopts contact photoreceptor 17 to come the contact device of adhering toner, it provides toner to photoreceptor 17, this toner is attracted on the electrostatic latent image that is written on photoreceptor 17 outer surfaces, thereby makes the electrostatic latent image video picture on the photoreceptor 17, becomes toner image.

Cleaning section 28 adopts, and the brush contact type device with brush contact photoreceptor 17 outer surfaces, is removed the remaining toner that adheres on photoreceptor 17 outer surfaces.

Intermediate transfer belt 15 is the endless belts that form take resin molding or rubber as matrix, is used for the toner image that forms on the transfer printing photoreceptor 17.The toner image conduct that is transferred on this intermediate transfer belt 15 is the photographic fixing image, is transferred to sheet material 6a by transfer roll 9.

Developer roll 19 includes magnetic roller a1, elastic layer and silicon oxide film top layer a2, and elastic layer is provided with two-layer, and a3 is thicker than outer elastomer layer a4 for the internal layer elastic layer, and internal layer elastic layer a3 is higher than the hardness of outer elastomer layer a4.

The above; it only is the better embodiment of the utility model; but protection domain of the present utility model is not limited to this; anyly be familiar with those skilled in the art in the technical scope that the utility model discloses; the variation that can expect easily or replacement all are encompassed within the protection domain of the present utility model.

Claims

1. the structure-improved of developer roll includes magnetic roller, elastic layer and silicon oxide film top layer, and it is characterized in that: elastic layer is provided with two-layer, and the internal layer elastic layer is thicker than outer elastomer layer.

2. the structure-improved of developer roll according to claim 1, it is characterized in that: the internal layer elastic layer is higher than the hardness of outer elastomer layer.