Method and apparatus for control of toner charge
US5339140A · kind A · utility
9Cited by
13References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 4, 1992 |
| Grant date | Aug 16, 1994 |
| Priority date | — |
| Expiry date | Nov 4, 2012 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G15/09
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
The level of charge on toner in a developer is sensed or otherwise determined in an image forming apparatus. In response to such determination, a charge control member is adjusted between positions in which it triboelectrically charges the toner more or less because of greater or lesser contact with the toner.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.