| 摘要 |
<p>PURPOSE:To obtain a developer having uniform particle size, enough electrification property to be used as a toner and good fluidity, and further to obtain clear and high-density images with durability. CONSTITUTION:This developer is immobilized with colorless polymer particles having 12-3mum average particle size and produced from a compsn. of at least polymerizable monomers and a polymn. initiator, dye or pigment which covers the surface of polymer particles, and 0.1-5 pts.wt. charge control agent to 100 pts.wt. the polymer particles on the surface of polymer particles. The charge control agent is immobilized on the surface of the polymer particle by the force of mechanical impact by using a rotating body.</p> |
