Charging member, charging device including the charging member, process cartridge including the charging device and image forming apparatus including the process cartridge
US8150295B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 20, 2009 |
| Grant date | Apr 3, 2012 |
| Priority date | — |
| Expiry date | May 19, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G15/025
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A charging member is provided in which a minute gap between an image support body and the charging member is set widely but even so the charging member does not abnormally discharge easily, the charging member includes a conductive support body 903, an electrical resistance adjustment layer 902 disposed on the conductive support body 903 and a surface layer 901 disposed on the electrical resistance adjustment layer 902 in which the surface layer contains at least (a) polyol resin grafted with fluorine or silicon, (b) polyether polyol resin, (c) organic anion salt that contains fluorine and alkali metal or alkali earth metal and (d) polyisocyanate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.