| abstract |
To provide a toner excellent in development durability, storage stability, environmental stability, member contamination, and low-temperature fixability. A toner having toner particles having a surface layer containing an organosilicon polymer and a charge control agent, The organosilicon polymer has the following formula (T3R) R-Si (O 1/2 ) 3 formula (T3R) (R in the formula is a hydrocarbon group having 1 to 6 carbon atoms.) Having a unit represented by In the measurement using ESCA (Electron Spectroscopy for Chemical Analysis) on the surface of the toner particles, the silicon concentration dSi with respect to the total concentration (dC + dO + dSi) of the carbon element concentration dC, the oxygen element concentration dO, and the silicon element concentration dSi on the toner particle surface is 0. .50 atomic% or more, The charge control agent is a polymer having a specific structure. [Selection figure] None |