| abstract |
The present invention provides a magnetic toner capable of obtaining a stable image density during long-term use and capable of suppressing development ghosting under low temperature and low humidity conditions. A magnetic toner having magnetic toner particles containing a binder resin, a magnetic material and a release agent, and silica fine particles present on the surface of the magnetic toner particles, wherein the silica fine particles are silica fine particles. The number average particle diameter (D1) of primary particles of the silica fine particles A is 5 nm to 20 nm, and the silica fine particles B are silica fine particles produced by a sol-gel method, The number average particle diameter (D1) of the primary particles of the silica fine particles B is 40 nm or more and 200 nm or less, the abundance ratio of the secondary particles of the silica fine particles B is 5% or more and 40% or less, and X-ray photoelectrons The coverage X1 with the silica fine particles on the surface of the magnetic toner particles determined by a spectroscope (ESCA) is 40.0 area% or more and 75.0 area% or less.[Selection figure] None |