| 摘要 |
PROBLEM TO BE SOLVED: To provide a toner with which stable developing performance can be obtained from the beginning of use while the toner is left irrelevantly to environment for a cartridge which can be loaded with a large amount of toner. SOLUTION: A plurality of toner storage spaces 16 are formed and connected through openings to allow the toner to move, each toner storage space has at lest one agitating member 20, and the toner is moved by the agitating member or a carrying member from one storage part to another storage part and supplied to a development part holding a toner carrier 18 to perform development. The charged toner contains at least binding resin and a coloring agent and satisfies 0.2<=(Ct/(X×Dt)<=0.8 (1), where X (cm<3> ) is the total capacity X>=2500 of the toner storage p arts, Ct (g) is the stored tone mass, and Dt (g/cm<3> ) is the tap density of the toner, and is characterized by that the jetting index of Carr of the toner is >=80. |
