Triboelectric charge measurement
US5034775A · kind A · utility
20Cited by
6References
16Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 26, 1990 |
| Grant date | Jul 23, 1991 |
| Priority date | — |
| Expiry date | Feb 26, 2010 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G2215/0643
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An apparatus in which the triboelectric charge of developer material toner adhering to carrier is measured. In the development system, a magnetic roller transports developer material closely adjacent a donor roller. The donor roller is electrically biased relative to the magnetic roller so that toner is developed onto the donor roller. The instantaneous current flow electrically biasing the donor roller is integrated and is indicative of the triboelectric charge to the developer material.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.