CN202837821U - High-intensity fixing film - Google Patents

Abstract

The utility model discloses a polyimide (PI) base fixing film which is high in intensity, durable in use and capable of maintaining fixing quality for a long time. The high-intensity fixing film comprises a basic shaft and a PI base layer, a foaming spongy layer is arranged on the surface of the PI base layer, a wire mesh is hidden in the foaming spongy layer, a Teflon layer is coated on the surface of the foaming spongy layer in a spraying mode, and the thickness of the Teflon layer is 5-50 micrometers.

Description

The fixing film that a kind of intensity is high

Technical field:

The utility model relates to the high fixing film of a kind of intensity.

Background technology:

At imaging device, for example in copy, printer or the facsimile recorder, fixing device is according to the image information of expection, be used for the unfixing toner that forms/support on the target object (transmission parts, sensitive film, dielectric coating sheet etc.) being heated/pushing/photographic fixing such as electrophotographic method, electrostatic recording method or magnetic recording method by suitable imaging processing mechanism.In recent years, in the image forming apparatus of electronic image mode, effectively utilize outside the resource in realization, also require to improve the stability of device, guarantee high reliability, cut down operating cost.The core part that affects the photographic fixing effect is the fixing film in the fixing device.Being applied to the PI base image-fixing film on the senior laser printer, is to be responsible for the lip-deep imaging carbon dust that does not also solidify of printer paper that is coated on that sends from toner cartridge is carried out the hot pressing melting and solidification, makes carbon dust melted by heat infiltration printer paper inner, cooling curing.Along with the high speed of copy, laser printer, the load of fixing member is also increased, also because above reason is guaranteed the life-span difficult of fixing member.

And the fixing film structure is divided three layers, standard shaft-PI (polyimide resin) basic unit-Teflon sprayed coating, the fixing film of this structure is because the intensity of PI basic unit is very limited, in the routine use process, because the photographic fixing mould need to keep with pressure roll pressing, present structure is relatively poor because of photographic fixing mould skin-material intensity, causes photographic fixing mould phenotype can occurring after pressing a period of time, sometimes in the time of will pulling down in addition the photographic fixing mould and safeguard, easily be subject to foreign object weight and cause distortion.

Summary of the invention:

The purpose of this utility model is in order to overcome the shortcoming of above-mentioned prior art, provides a kind of intensity high, durable in use and can keep for a long time the PI base image-fixing film of fixing quality.

For achieving the above object, the technical scheme that the utility model provides is: the fixing film that a kind of intensity is high, include standard shaft and PI basic unit, and be provided with foam sponge layer on the surface of PI basic unit, keep wire gauze in the foam sponge layer, the surface spraying of foam sponge layer has the Teflon layer.

The Teflon layer thickness is 5～50 μ m.

After adopting technique scheme, compared with prior art, the technical program has the following advantages: by increase wire gauze in foam sponge layer, can greatly increase the intensity of photographic fixing mould, avoid photographic fixing mould surfacing to cause distortion because being under pressure, guarantee that the photographic fixing mould can keep original intensity, keeps fixing quality for a long time.

Description of drawings:

Fig. 1 is the structural representation that adopts the imaging device of the utility model fixing film;

Fig. 2 is the structural representation of the utility model fixing film.

Embodiment:

Referring to accompanying drawing, the embodiment of relevant present technique is described.

At first according to Fig. 1 structural drawing, image processing system one example is described, has wherein adopted present technique.

This image processing system is made of image forming device body GH and image read-out YS.

Image forming device body GH is the color image forming device that is called as tandem type, is made of multiple series of images forming portion 10Y, 10M, 10C, 10K, the banded intermediate transfer belt 5 of transmission, paper supply conveying unit and driving-belt carrying device 8 etc.

Image forming device body GH top is provided with the image read-out YS that is made of automatic manuscript handling device 201 and original image scanning-exposure apparatus 202.Be placed on original copy d on automatic manuscript handling device 201 document boards by the conveying unit conveyance, the image of original copy single or double is through the optical system scans exposure of original image scanning-exposure apparatus 202, and CCD reads in by line image sensing.

The signal that warp image sensing CCD light-to-current inversion forms is carried out in image processing part after simulation process, A/D conversion, shading correction, the image Compression etc., is sent to the 3Y of exposure section, 3M, 3C, 3K.

The image forming part 10Y that forms yellow (Y) color image configures electro-mechanical part 2Y, the 3Y of exposure section, development section 4Y and cleaning section 7Y around photosensitive drums 1Y.The image forming part 10M that forms pinkish red (M) color image configures electro-mechanical part 2M, the 3M of exposure section, development section 4M and cleaning section 7M around photosensitive drums 1M.The image forming part 10C that forms blue or green (C) color image configures electro-mechanical part 2C, the 3C of exposure section, development section 4C and cleaning section 7C around photosensitive drums 1C.The image forming part 10K that forms black (K) color image configures electro-mechanical part 2K, the 3K of exposure section, development section 4K and cleaning section 7K around photosensitive drums 1K.The electro-mechanical part 2Y exposure 3Y of section, the electro-mechanical part 2M exposure 3M of section, the electro-mechanical part 2C exposure 3C of section and the electro-mechanical part 2K exposure 3K of section consist of the sub-image forming portion.

Development section 4Y, 4M, 4C, 4K include 2 component developers that are made of yellow (Y), pinkish red (M), blue or green (C) and black (K) small particle size toner and carrier.Toner is also had by colour former pigment or dyestuff and helps the glazing agent that toner peels off from fixing member after the photographic fixing and support their adhesive resin to consist of.

Intermediate transfer belt 5 is supported on a plurality of rollers, can rotate.

Fixing device 8 is the folder sections that form between heated PI base image-fixing film 81 and backer roll 83, and the toning picture of heating pressurization recording chart (record material) P carries out photographic fixing.

Like this, each color image that is formed by image forming part 10Y, 10M, 10C, 10K is transferred to one by one by transfer section 6Y, 6M, 6C, 6K that (1 transfer printing) forms the synthetic toning picture of coloured image on the intermediate transfer belt 5 of rotation.The recording chart P that accommodates in the paper feeding cassette 20 is arrived transfer section 6A through paper feed roller 22A, 22B, 22C, 22D, registration roller 23 etc. by conveyance by sheet feed section 21 paper supplies, is transferred coloured image (2 transfer printings) on the recording chart P.The recording chart P that has been transferred coloured image is heated pressurization in fixing device 8, the colour toning picture on the recording chart P is by photographic fixing.Then by exit roller 24 clampings, in the ADF dish 25 of mounting outside machine.

In addition, on recording chart P after the transfer of color images, curvature has been separated the intermediate transfer belt 5 of recording chart P and has been removed residual toner by cleaning section 7A by transfer section 6A.

Above-mentioned is the image processing system that forms coloured image, but also can be the image processing system that forms black white image, can adopt also and can not adopt intermediate transfer belt.The embodiment of the above is preferred embodiment of the present utility model only, is not to limit practical range of the present utility model with this, therefore the equivalence that all shapes according to the utility model, structure and principle are done changes, all should be covered by in the protection domain of the present utility model.

PI base image-fixing film 81 of the present utility model includes standard shaft a1 and the a2 of PI basic unit, surface at the a2 of PI basic unit is provided with foam sponge layer a3, keep wire gauze a4 in the foam sponge layer a3, the surface spraying of foam sponge layer a3 has Teflon layer a5, and Teflon layer a5 thickness is 5～50 μ m.The existence of foam sponge layer a3 can improve the elasticity of PI base image-fixing film 81 greatly, and can keep for a long time its elastic performance, and order can guarantee fixing quality for a long time to PI base image-fixing film 81.

The above only is preferred embodiment of the present utility model, is not the utility model is done any pro forma restriction.Any those of ordinary skill in the art, do not breaking away from the technical solutions of the utility model scope situation, all can utilize method and the technology contents of above-mentioned announcement that technical solutions of the utility model are made many possible changes and modification, or be revised as the equivalent embodiment of equivalent variations.Therefore every content that does not break away from technical solutions of the utility model, the equivalence of doing according to shape, structure and the principle of the utility model changes, and all should be covered by in the protection domain of the present utility model.

Claims (2)

1. the fixing film that intensity is high includes standard shaft and PI basic unit, and it is characterized in that: the surface in PI basic unit is provided with foam sponge layer, keeps wire gauze in the foam sponge layer, and the surface spraying of foam sponge layer has the Teflon layer.

2. the high fixing film of a kind of intensity according to claim 1, it is characterized in that: the Teflon layer thickness is 5～50 μ m.

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