Electrostatic charge image developing toner, electrostatic charge image developer, and toner cartridge
US10025210B2 · kind B2 · utility
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16Claims
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Key dates
| Filing date | Nov 4, 2016 |
| Grant date | Jul 17, 2018 |
| Priority date | — |
| Expiry date | Nov 4, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G15/0867
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An electrostatic charge image developing toner includes toner particles, silica particles having an average particle diameter of 80 nm to 200 nm, lubricant particles N which has negatively chargeable property, and lubricant particles P which has positively chargeable property, wherein a content (s) of the silica particles, a content (n) of the lubricant particles N, and a content (p) of the lubricant particles P satisfy relationships of Expression (1): 0.002≤p/s≤0.2; and Expression (2): 0.02≤n/s≤0.5.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.