| abstract |
A toner capable of suppressing fogging in a wide range of back contrast in any of a low-temperature and low-humidity environment and a high-temperature and high-humidity environment. A toner having toner particles containing a binder resin, a fatty acid metal salt and a resin having an ionic functional group, wherein the fatty acid metal salt is a polyvalent metal having a valence of 2 or more and a carbon number of 8 to 28. A toner, wherein the acid dissociation constant pKa of the resin having an ionic functional group is from 6.0 to 9.0. [Selection figure] None |