Image forming method and toner set for developing electrostatic latent image
US10591830B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 12, 2018 |
| Grant date | Mar 17, 2020 |
| Priority date | — |
| Expiry date | Sep 12, 2038 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G15/09
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
In an image forming method, a black toner and a color toner other than the black toner are used. The black toner and the color toner each include a binder resin including a polyester resin as a main component and a vinyl resin, a releasing agent, and an external additive. A content Vk % by mass of the vinyl resin relative to total mass of the binder resin included in the black toner, a content Vc % by mass of the vinyl resin relative to total mass of the binder resin included in the color toner, a content Wk % by mass of the releasing agent relative to the total mass of the binder resin included in the black toner, and a content Wc % by mass of the releasing agent relative to the total mass of the binder resin included in the color toner satisfy a specific relationship.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.