Two component developing agent and an image forming apparatus by use of the same
US6544707B2 · kind B2 · utility
4Cited by
7References
13Claims
0Family size
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Inventors
Key dates
| Filing date | Jan 25, 2001 |
| Grant date | Apr 8, 2003 |
| Priority date | — |
| Expiry date | Jan 25, 2021 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G9/1136
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
There is disclosed a two-component developing agent for use in an mage formation based on electrophotography, which has high developability even at a high speed printing and good developability in the case of the image formation for a long period of time. The two-component developing agent includes a carrier comprising a magnetic particle and an insulating toner. A surface of the magnetic particle is coated with at least a resin. A mean particle size of the magnetic particle is between 30 and 90 &mgr;m and an aggregation degree of said carrier is between 2 and 15%.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.