Toner, developer, image developing apparatus, and image forming apparatus
US7166403B2 · kind B2 · utility
16Cited by
1References
21Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 24, 2005 |
| Grant date | Jan 23, 2007 |
| Priority date | — |
| Expiry date | Jul 21, 2025 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G9/0827
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A toner capable of making compatible a transferring property, a fixing property and a cleaning property and forming a high-precision image. The toner comprises a binder resin and a colorant and is characterized in that the average circularity of the toner is at least 0.95, a ratio (D/S) between the total projection area (S) and the contact area (D) of the toner is 15% to 40%, and the contact area (D) is a total contact area between the toner and an object surface. The toner has such a shape as to be able to contact a latent image carrier with a proper contact area, has a high transferring rate and can prevent transferring dust.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.