Developing apparatus image forming apparatus, and method of charging a developer using charging particles
US7835676B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 15, 2008 |
| Grant date | Nov 16, 2010 |
| Priority date | — |
| Expiry date | Aug 31, 2028 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G2215/0607
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A developing apparatus for visualizing an electrostatic latent image on an electrostatic latent image bearing member by using a developer including toner and carrier particles, has a developer including toner and carrier particles, a first transport member, a second transport member positioned to oppose to the first transport member across a first region and to the electrostatic latent image bearing member across a second region. A first electric field forming unit forms a first electric field between the first and second transport members to move the toner particles from the first transport member to the second transport member. A second electric field forming unit forms a second electric field between the second transport member and the electrostatic latent image bearing member to move the toner particles from the second transport member to the electrostatic latent image bearing member and thereby to visualize an electrostatic latent image on the image into a visible image. The developer further includes charging particles releasably retained on surfaces of the toner particles. Once released from the toner particles and then held on surfaces of the carrier particles, the third pa…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.