Method for developing an electrostatic latent image
US7132211B2 · kind B2 · utility
3Cited by
5References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 9, 2005 |
| Grant date | Nov 7, 2006 |
| Priority date | — |
| Expiry date | Sep 9, 2025 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G2215/0602
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A magnetic toner contains, as a magnetic powder, magnetic iron oxide having an octahedral particle shape and an average particle diameter of 0.21 μm or larger and containing 18% or more by weight of FeO. The magnetic toner is so prepared as to have a bulk density A (g/cm3) and a magnetic powder content B (% by weight) that fulfill the formulae 0.8≦A/B×100≦1.6 and 35≦B≦50. This alleviates the reddishness of images produced with the magnetic toner, and alleviates the disturbance of a thin toner layer on a developing sleeve and thus the fogging resulting therefrom.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.