Toner charging apparatus containing wear resistant coatings
US4505573A · kind A · utility
41Cited by
10References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 10, 1983 |
| Grant date | Mar 19, 1985 |
| Priority date | — |
| Expiry date | Feb 10, 2003 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G2215/0641
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
There is disclosed an apparatus for effecting the charging of insulating toner particles in a charging zone situated between a moving roller, and a toner transporting roller or belt with a coating thereover comprised of a mixture of fluoropolymers and conductive particulate particles, such as carbon black. The coating may be textured with silica particles. Useful polymers selected for the coating include fluorinated ethylene propylenepolytetrafluoro ethylene copolymers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.