| 摘要 |
PROBLEM TO BE SOLVED: To provide a nonmagnetic single component developing toner capable of obtaining a high-quality image even in continuous printing using a high-speed nonmagnetic single component developing device. SOLUTION: The nonmagnetic single component toner comprises a binder resin and colorant, into which fine aprticles are externally added. In the toner, the concentration of aromatic functional groups of the binder resin ranges from 35 to 50 wt.%, the fine particles are conductive particles, the coating rate by the conductive fine particles ranges from 3 to 50%, and the loose apparent density of the toner ranges from 0.345 to 0.464 g/cm<SP>3</SP>. COPYRIGHT: (C)2003,JPO |
