Charging roller, process cartridge and image forming apparatus
A charging roller and image carrier technology, which can be used in corona discharge devices, electric recording technology using charge patterns, equipment for electric recording technology using charge patterns, etc., and can solve the problems of ion conductive agent leakage, etc.
Inactive Publication Date: 2007-10-31
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AI-Extracted Technical Summary
Problems solved by technology
The invention provides a charging roller which includes a rubber member with a surface subjected to a hardening treatment using a solvent containing at least an isocyanate compound, and which prevents leakage of an ionic conductive agent even if the charging roller is placed in high-temperature and high-humidity environment for a long period of time. The charging roller is made by forming a rubber layer on a metal core. The rubber layer is an epichlorohydrin based rubber base material to which the ionic conductive agent is added, and is subjected to a surface treatment by applying a solution containing the isocyanate compound thereon and heating it. The surface treatment is carried out under such conditions that a coefficient of dynamic friction at a contact portion between the rubber layer and a photoreceptor becomes 0.4 or less.
Electrographic process apparatusCorona discharge
- Experimental program(12)
- Comparison scheme(7)
Description & Claims & Application Information
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