Conductive elastomer roller and manufacturing method thereof as well as image forming device

Abstract

The invention relates to a conductive elastomer roller and a manufacturing method thereof as well as an image forming device and in particular relates to a conductive elastomer roller with an improved surface layer structure and a development device using the same. The surface layer is made from a film forming material by virtue of film forming and curing on an elastic layer, wherein the film forming material consists of a main material containing the first resin material and a non-main material containing the second resin material; the mass ratio of the main material to the non-main material is (55:45)-(95:5); polar difference exists between the first resin material and the second resin material; the first resin is selected from the resin material which can or needs to react with a curing agent to be cured; and the second resin is selected from the resin material which only can be cured by self. Serving as a development roller and a charge roller, the conductive elastomer roller can be used for not only solving the phenomenon that a developer is attached to the surface of the development roller to form a film and the defects such as flying mist, mottling and the like, but also avoiding the bad phenomenon that the developer and a development additive are stuck on the surface of the charge roller in the printing process.

Description

technical field [0001] The present invention relates to a conductive elastomer roller, a method for manufacturing the same, and an image forming apparatus, and more particularly to a conductive elastomer roller having an improved composition and properties of a surface layer, and a developing device using the conductive elastomer roller, including a developing cartridge and An image forming device belongs to the technical field of image forming. Background technique [0002] At present, various image forming devices such as copiers and laser printers are widely used in people's life and work, and have become indispensable equipment in people's life and work. The imaging principles of image forming devices such as copiers and laser printers mainly include contact development and jump development. The equipment or devices that use contact development are used more often. The image forming device using contact development includes a process box (also called a developer box), ...

AI Technical Summary

Problems solved by technology

Although efforts have been made, there are still some defects in the developing roller, such as the developer adheres to the surface of the developing roller, it is difficult to detach or even form a film, the migration of low molecular substances in the elastic layer causes the developing roller to contaminate other components, and the lack of electrification of the surface layer leads to developing Printing defects caused by poor electrification of the agent, such as fogging phenomenon, mottled phenomenon, etc.

At the same time, during the printing process, the developer and the additives of the developer tend to adhere to the surface of the charging roller, causing the charging process to fail to proceed normally

There have been reports on the solutions to prevent the developer from adhering to the surface of the charging roller, but most of them are realized by very complicated chemical means, such as changing the molecular chain structure of the resin or containing functional groups to synthesize new resin products as the raw materials for the formation of the surface layer. lead to high production costs

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