| abstract |
The present invention relates to toner base particles each comprising a binder resin and a releasing agent; And an external additive, wherein the external additive comprises non-spherical bonded particles each of which primary particles are attached together, and wherein the bonded particles satisfy the following formula (1): Nx / 1,000 占 100? 30% Equation (1) In the above formula, Nx was obtained by stirring 0.5 g of the above-mentioned coagulated particles in a 50 mL bottle and 49.5 g of the carrier with stirring at 67 Hz for 10 minutes using a mixing stirrer, Is the number of primary particles present. |