Electrophotographic toner with stable triboelectric properties
US6692880B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 6, 2002 |
| Grant date | Feb 17, 2004 |
| Priority date | — |
| Expiry date | May 6, 2022 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G9/09783
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Toner formulations and developers containing the toner formulations are described. The toner contains at least one toner resin, at least one first charge control agent capable of providing a consistent level of charge, at least one second charge control agent capable of providing a sustained level of charge, at least one surface treatment agent, and at least one release agent and optionally at least one colorant. The toners of the present invention preferably provide a consistent level of charge of from about −10 to about −30 micro C/gm and also provide this level of charge for a sustained period of time, such as from about 2 to about 10 minutes. The toners of the present invention also provides excellent ruboff values for an image printed from the toners of the present invention. Methods of improving ruboff are described as well as methods to develop an image using the toner of the present invention.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.