| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide an electrostatic charge image developing magnetic toner capable of stably forming images even in the case environments of a high temperature and humidity and a low temperature and humidity without lowering the image density and causing a fog and reducing the occurrence of sleeve memory. SOLUTION: This toner contains a mother toner containing a binder resin and a magnetic powder, and fine inorganic grains treated with a silicone compound shown by the formula together with a silane coupling agent and having a BET specific area of 20-100 m2/g measured by the nitrogen adsorption method and a fine silica powder having a BET specific area of 100-250 m2/g measured by the nitrogen adsorption method. In the formula, each of R1-R5 is a 1-3C alkoxy group, and (n) is integer of 2-6.</p> |
