Toner and two-component developer
US9436112B2 · kind B2 · utility
34Cited by
1References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 11, 2014 |
| Grant date | Sep 6, 2016 |
| Priority date | — |
| Expiry date | Sep 11, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G9/1133
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Provided are a toner and a two-component developer each of which: shows a small fluctuation in charge quantity and a small fluctuation in image density even under a high-temperature and high-humidity environment; and does not cause any member contamination even after endurance and hence can stably output an image. The toner and the two-component developer each have a feature in that positively chargeable strontium titanate fine particles are added to toner particles having fixed thereto negatively chargeable silica fine particles.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.