Image forming apparatus
US7570904B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 26, 2005 |
| Grant date | Aug 4, 2009 |
| Priority date | — |
| Expiry date | Jul 11, 2026 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G15/09
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
In the image forming apparatus by: visualizing an electrostatic latent image formed on an electrostatic charge carrying member; transferring a toner image, which is thus visualized, to a recording medium, or to a recording medium through an intermediate transfer material; and fixing the toner image, which is thus transferred to the recording medium, to obtain a recorded image, the toner includes at least a fixing resin, a colorant, a releasing agent, and an external additive, the toner has an average particle diameter in a range of from 4 to 12 μm and including no particle having a diameter of 45 μm or more, a ratio of a toner adhesion amount in a character part to a toner adhesion amount in a solid image part upon printing is more than 0.5 and less than 4, and the toner adhesion amount in a character part is 1.6 mg/cm2 or less.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.