| abstract |
(57) [Summary] [Object] To provide a toner having excellent charge stability and improved fluidity. [Structure] Weight average particle diameter of 5 to 10 containing titanium oxide A toner having a particle diameter of μm, which is obtained by subjecting titanium oxide to surface treatment with silicone oil or silicone varnish in an aqueous system, and then forming a coupling agent represented by the following general formula (I): (N = 4 to 12, m = 1 to 3), which is a toner characterized by being processed in a gas phase under an acidic or basic atmosphere. |