| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a toner cartridge which is superior in stability of image quality and has preservability. <P>SOLUTION: The toner cartridge has a toner for electrostatic latent image development stored therein, and the toner consists of toner containing at least a binding resin, a colorant, and a release agent and an external additive, and the toner has ≥0.975 average circularity, and a center value of an arithmetic average height distribution of the toner is ≥0.05mμ and ≤0.12mμ, and the variance of arithmetic average height of the toner is ≤35, and a surface roughness Ra of a part brought into contact with the toner on the inside of the cartridge is 0.4 to 1.6μm. <P>COPYRIGHT: (C)2006,JPO&NCIPI |
