| 摘要 |
PROBLEM TO BE SOLVED: To provide toner with good reproducibility of dots by appropriately evaluating the fluidity of the toner because dot reproducibility is critical for obtaining higher image quality of a copying machine or the like. SOLUTION: The evaluation method for the fluidity of toner is carried out by intruding a conical rotor with its rotation stopped into a desired position of the powder phase of the toner comprising at least a resin and a pigment, then rotating the conical rotor to measure the torque or the load generated when the conical rotor is moved in the powder phase. The toner thus evaluated and produced is used for the development method. COPYRIGHT: (C)2004,JPO&NCIPI |
