| 摘要 |
PROBLEM TO BE SOLVED: To provide ferrite particles that has high magnetization and a high electrostatic property, and can provide excellent image quality for a long period when used as a carrier for an image forming apparatus of an electrophotographic system.SOLUTION: Ferrite particles has on the particle surface a compound represented by the composition formula SrMnFeO(where 0<x<3, 0.7≤y≤3.5, 9.0≤z≤11.3, and x+y+z=13). |
