Toner for developing electrostatic images, developer, image forming method, and image forming apparatus
US7261989B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 10, 2006 |
| Grant date | Aug 28, 2007 |
| Priority date | — |
| Expiry date | Apr 10, 2026 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G9/0872
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
The object of the present invention is to provide a toner which has sufficiently high chargeability and less toner spent to a carrier or the like even when several tens of thousands of image sheets are output, is capable of keeping high-charge property and flowability without causing substantial background smear or toner fogging, excels in low-temperature fixing property and hot-offset property, and has a wide range of fixing temperature as well as to provide a developer, an image forming apparatus, a process cartridge, and an image forming method using the toner for developing electrostatic images. The toner of the present invention comprises a colorant, and a resin, and a fluoride compound, in which the fluoride compound exists on the surfaces of toner particles, and the atomic number ratio (F/C) of fluoride atoms to carbon atoms existing on the surfaces of the toner particles is 0.010 to 0.054.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.