| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a developer which suppresses filming on a photoreceptor and the scattering of a toner and has good electrostatic chargeability, flowability and shelf stability. SOLUTION: The developer contains a 1st additive 11 having 5-20 nm primary particle diameter stuck to toner particles and a 2nd additive 12 having 30-100 nm primary particle diameter dispersed in the peripheries of the toner particles. The amount of the 2nd additive 12 added is 30-60% of the amount of the 1st additive 11 added.</p> |
