| 摘要 |
<p>PROBLEM TO BE SOLVED: To obtain an electrophotographic toner with which an image of high picture quality can be formed without fog on a base. SOLUTION: When the average adhesion strength F of toner particles to an electrophotographic photoreceptor is defined by the formula (I) on the basis of a centrifugal separation method, the non-electrostatic adhesion strength of the toner is <=35 nN. The proportion of non-electrostatic adhesion strength to the average adhesion strength based on the formula (I) in the image part is <=9.0%. In the formula,ρis the density (Kg/m3) of toner particles, d is the toner diameter (m), r is the rotation radius (m), f50 is the rotation number (rpm) when the separation ratio of toner particles by centrifugal force is 50%.</p> |
