| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide magnetic toner constituted so that an image of high image quality, high image density, improved sharpness, improved fine line reproducibility and high resolution can be outputted over a long period, and to provide an image forming device and a process cartridge using the magnetic toner. SOLUTION: As for the magnetic toner used at a developing process in the image forming device including a latent image carrier containing at least filler in the outermost layer, the magnetic toner is constituted of at least binding resin, magnetic particles and inorganic particulates, and the inorganic particulates are externally added to the mother particle constituted of the binding resin and the magnetic particles by the extent of 1.6 to 4.0 wt.%. The magnetic toner is used for the image forming device and the process cartridge.</p> |
