| 摘要 |
In a developing assembly having a developer container, a developer-carrying member, a developer layer thickness control member, a magnetic-field formation device and an agitation member, the developer is a two-component developer which contains at least a binder resin, a colorant, an organometallic compound and a wax and has wax-dispersed non-magnetic toner particles with an average particle diameter of from 2 mum to 10 mum and a magnetic carrier. The developer-carrying member is a member which has been subjected to surface blasting with spherical particles to have a surface having a ten-point average roughness Rz in a range from D/6 to D/2 where D is the average particle diameter of the magnetic carrier. The magnetic carrier has a magnetization intensity in a range of 8 Am<2>/kg to 50 Am<2>/kg in a magnetic field of 7.95775 kA/m.
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