| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide an electrostatic latent image developing toner superior in low temperature fixability and offset resistance and gloss and black image reproducibility. SOLUTION: In the electrostatic latent image developing toner containing a binder resin and carbon black, this resin is composed of a linear polymer having a number average molecular weight Mn of 2,800-7,800 and a weight average molecular weight Mw of 8,900-21,000 and a Mw/Mn ratio of 2.0-3.9, and a nonlinear or linear polymer having a Mn of 3,500-8,000 and a Mw of 40,000-250,000 and a Mw/Mn ratio of 15:85-95:5, and an average primary particle diameter (D) of 15-35 nm and the primary particles in the range of D±5 nm are 15-40 number % and those in the range of D±15 nm are 45-75 number % and those in the range of D+15 nm-D+45 nm are 15-35 number %.</p> |
