Charging member, process cartridge and electrophotographic apparatus
US7664434B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 22, 2005 |
| Grant date | Feb 16, 2010 |
| Priority date | — |
| Expiry date | Feb 8, 2027 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31663
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A charging member is provided in which a toner, an additive for use in the toner, or the like is hard to adhere to the surface even under repeated use for a long time, and hence the charging and image output are made stable for a long time even if the charging member is used in the DC contact charging method. Also provided are a process cartridge and an electrophotographic apparatus having the charging member. The charging member includes a support, a conductive elastic layer formed on the support, and a surface layer formed on the conductive elastic layer, characterized in that the surface layer contains a polysiloxane having a fluoroalkyl group and an oxyalkylene group, and a process cartridge and an electrophotographic apparatus having the charging member.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.