Toner, toner cartridge, and image-forming device

A toner comprising particles containing a binder resin, a colorant, and wax,

• wherein the binder resin includes a polystyrene based copolymer resin or a poly(meth)acrylic based resin,
• the wax includes an ester based wax containing C18 and/or C22 hydrocarbon,
• the toner, in differential scanning calorimetry (DSC) performing a temperature program including a first heating from 40° C. to 100° C. or more at a heating rate of 10° C./min, then cooling to 40° C. or less at a cooling rate of 10° C./min, and then a second heating to 100° C. or more at a heating rate of 10° C./min, satisfies the following relationship (1),
• HA2/HA1>0.80 (1),
• in which, HA1 is a total endothemic amount in the first heating, and HA2 is a total endothermic amount in the second heating, and
• a difference between a full width at half maximum of an endothermic peak in the second heating and a full width at half maximum of an exothermic peak in the cooling is 7.00° C. or less.