Toner and image forming apparatus using the toner
US6846604B2 · kind B2 · utility
40Cited by
13References
21Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 19, 2002 |
| Grant date | Jan 25, 2005 |
| Priority date | — |
| Expiry date | Sep 19, 2022 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G9/097
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A toner composition including toner particles including mother toner particles, which include a binder resin, a colorant and a release agent, and a charge controlling agent which is located on a surface of the mother toner particles and fixed thereon, wherein the toner particles have a spherical degree of from 0.960 to 1.000 and a specific surface area of from 0.70 to 2.5 m2/g. The toner composition optionally includes an external additive which is present on the surface of the toner particles.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.