Toner

A toner comprising a toner particle, wherein

• the toner comprises a crystalline vinyl resin and an amorphous resin,
• the toner has a weight-average particle diameter of 4.0 to 12.0 μm;
• and
• an endothermic quantity ΔH derived from the crystalline vinyl resin in a differential scanning calorimetric measurement of the toner is 10 to 70 J/g;
• in an analysis by time-of-flight secondary ion mass spectrometry of the toner particle, while under sputtering over a sputtering time during which 100 nm of a polymethyl methacrylate standard sample film are shaved,
• with A(100) as an amount of ions represented by Formula (A) below at the sputtering time of which 100 nm of the standard sample film are shaved;
• the amount of ions represented by Formula (A) exhibits one or more peak values, from the start of a measurement over a sputtering time during which 100 nm of the standard sample film are shaved;
• and with A(dmax) as a maximum value from among the peak values,
• the A(dmax) and A(100) satisfy Expression (1) below,
• 1.5
• ≤
• A
• ⁡
• (
• d
• max
• )
• /
• A
• ⁡
• (
• 100
• )
• ≤
• 30.
• (
• 1
• )
• where in Formula (A), n is from 18 to 30.