| 摘要 |
PURPOSE:To stabilize the electrification property in various environments and obtain a high-quality image by containing a color toner containing a specific external additive and a carrier having a specific additional component in coat resin. CONSTITUTION:A insulating nonmagnetic color toner containing colorant- containing resin grains and a flow improving agent and a carrier with the average grain size 10-100mum coated with electrically insulating resin 0.1-5wt.% against the carrier core material weight are contained. A nitrogen-containing compound 0.3-15wt.% containing 3-30 carbon atoms is contained against the whole coating resin, and this organic resin made of a fluoroalkyl acrylic polymer is coated on a carrier core material to obtain the carrier. The low flow improving agent with the absolute value 30muc/g or below against the carrier is used. The friction electrification characteristic is stable, and carrier sticking is excellently prevented. |
