Charge roller and method of producing the same

A charging roller and conductive surface technology, applied in the field of charging roller and its preparation, can solve the problems of charging roller surface roughness reduction, oozing pollution, insufficient conductivity, etc., and achieve reduced roughness, proper elasticity, and good wear resistance Effect
CN101178559AInactive Publication Date: 2008-05-14ZHEJIANG DONGYANG CHENGJI ELECTRO MECHANICS CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
ZHEJIANG DONGYANG CHENGJI ELECTRO MECHANICS CO LTD
Publication Date
2008-05-14
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention relates to a charging roller and a preparation method thereof. The charging roller comprises a metal shaft, on which a polyurethane elastomer is bonded, and a conductive surface layer with a thickness of 10-40 μm is sprayed on the surface of the polyurethane elastomer. , the polyurethane elastomer is made of a prepolymer-R liquid and a prepolymer-P liquid, and the prepolymer-R liquid includes a conductive substance with a weight percentage of 2 to 8%; the prepolymer Polymer-P liquid includes isocyanate of 50-70% by weight; the charging roller of the present invention is made of polyurethane material, which has proper elasticity, good wear resistance, good heat resistance, and good chemical stability. It is not easy to produce photosensitive drum contamination, and the compression deformation rate is low.
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Description

Technical field

[0001] The present invention relates to a charging roller and a preparation method thereof, the charging roller is used in non-magnetic developing devices, such as printers, copiers, fax machines, etc. Background technique

[0002] Copiers, printers, and fax machines use a charging roller to charge and expose the photosensitive drum to form an electrostatic latent image, and then transfer toner to the electrostatic latent image part of the photosensitive drum through the developing roller, and the toner image is transferred to the paper to be heated and formed. Finally print the text image.

[0003] There are charging rollers and developing rollers in the toner cartridges of copiers, printers, and fax machines. The charging rollers and developing rollers in the prior art use conductive rubber as conductive elastomer, and then a metal shaft and synthetic rubber are fixed in the rubber elastic body. It is also difficult for the manufacturing method of elastomer to k...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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