Toner

A toner, comprising:

• a toner particle comprising a binder resin, a crystalline material and a colorant;
• the crystalline material being a wax or a crystalline polyester resin;
• and
• the colorant being a hydrophobized magnetic material that is hydrophobic-treated with a silane coupling agent, wherein
• 0
• .
• 0
• ≤
• S
• 1
• ≤
• 0.5
• 1.
• ≤
• S
• 2
• ≤
• 10.
• ,
• and
• 20
• ≤
• R
• 2
• ≤
• 200
• when S1 (%) is a ratio of an area occupied by the crystalline material per area of a toner particle surface observed with a scanning electron microscope (SEM) after ruthenium-staining the toner in a ruthenium tetroxide (RuO4) gas atmosphere at 100 Pa for 5 minutes, and
• S2 (%) is a ratio of an area occupied by the crystalline material per area of the toner particle surface and R2 (nm) is a dispersion diameter of a plurality of domains formed of the crystalline material on the toner particle surface, observed with the scanning electron microscope (SEM) after ruthenium-staining the toner in the ruthenium tetroxide (RuO4) gas atmosphere at 500 Pa for 15 minutes.