| 摘要 |
<p>PROBLEM TO BE SOLVED: To stably obtain an image excellent in fixing property and offset property and having good image density even under low humidity environment by containing specified substance. SOLUTION: This toner contains the substance shown by a formula. In the formula, n: 20<=n<=70 and R: CH2 -O-CH2 -CH2 -O-CH2 . In the case of n<20, the viscosity of this substance frequently turns low, so that the substance easily oozes out to the surface of the toner at lower temperature when it is used for the toner. Such toner frequently causes the welding of a drum or failure in cleaning. In the case of n>70, the viscosity of the substance frequently turns high, and the dispersibility of the substance is binding resin is frequently deteriorated when the substance is used for the toner. As a result, the electrification of the toner easily is unstable, especially, the charge-up phenomenon of the toner easily occurs and the image density is easily lowered.</p> |
