| abstract |
(57) [Summary] [Purpose] A combination of a binder type carrier and a toner containing magnetic powder, which maintains stable charging performance even during long-term use, suppresses fog density to a low value, and prevents toner scattering. And a two-component magnetic developer. [Composition] A binder type carrier and a toner containing magnetic powder are combined, and the difference in ionization energy between the magnetic powders contained therein is set to 0.3 eV or more. |