| 摘要 |
PROBLEM TO BE SOLVED: To provide a two-component developer in which, even if a small-diameter and high pigment concentration toner which ensures less toner consumption, breaking and spent due to stress by a carrier are suppressed in a two-component development system, and which can give stable images free of degradation in image quality over a prolonged period of time, and to provide an image forming method. SOLUTION: In the two-component developer, toner particles contain binder resin and pigment and have a volume average particle diameter of 5.5-7μm, number% of toner particles whose volume average particle diameter is smaller than 5μm and volume% of toner particles whose volume average particle diameter is 8-12.7μm are set within respective predetermined ranges, a concentration of the pigment in the toner particles is 6-20 wt.%, and resin coated carrier particles having a volume average particle diameter of 35-65μm are used as carrier particles. When the two-component developer is used, it becomes possible to obtain stable images free of degradation in image quality over a prolonged period of time. COPYRIGHT: (C)2006,JPO&NCIPI
|
