Toner, toner housing unit, and image forming apparatus
US9977367B2 · kind B2 · utility
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15Claims
0Family size
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Key dates
| Filing date | Nov 1, 2016 |
| Grant date | May 22, 2018 |
| Priority date | — |
| Expiry date | Nov 1, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G15/08
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A toner includes a toner base particle including a binder resin; a release agent; and an inorganic fine particle, and an external additive. The inorganic fine particle is silica having an average abundance ratio at the surface of the toner base particle of from 70% to 90%. The toner base particle has a BET specific surface area of from 1.0 m2/g to 2.5 m2/g after the external additive is removed from the toner.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.