Toner and image forming method
US7018761B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 18, 2003 |
| Grant date | Mar 28, 2006 |
| Priority date | — |
| Expiry date | Oct 12, 2023 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G9/0821
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A toner used for an image forming method comprises steps of: limiting an amount of toner on a surface of a toner carrier by allowing a toner layer limiting member to be pressed to the surface of the toner carrier; and developing an electrostatic latent image formed on an electrostatic latent image carrier using the toner carried and transferred by the toner carrier, based on a non-magnetic single component development system, wherein the toner comprises toner particles having a volume average particle diameter of 3 to 9 μm, an arithmetic mean value of shape factor of 1.1 to 1.5, a coefficient of variation of shape factor of 16% or less, a ratio of rounded toner particle of 50% by number or more and a coefficient of variation of number particle diameter distribution of 26% or less, and a conveyance index of 2.0 to 10.0.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.