A yellow toner in which, in a spectral-distribution diagram in which the reflectance
(%) is plotted as ordinate and the wavelength (nm) as abscissa, the reflectance
determined for a toner in a state of powder ranges from 15% to 20% at a wavelength
of 500 nm and ranges from 75% to 80% at a wavelength of 600 nm, a cyan toner in
which, in the like spectral-distribution diagram, the reflectance determined for
a toner in a state of powder ranges from 30% to 35% at a wavelength of 450 nm and
ranges from 35% to 40% at a wavelength of 475 nm, and a magenta toner in which,
in the like spectral-distribution diagram, the reflectance determined for a toner
in a state of powder ranges from 5% to 10% at a wavelength of 425 nm and ranges
from 65% to 70% at a wavelength of 675 nm. These color toners each contain corresponding
pigments in specific combination, and promise color reproduction which can ensure
the color tones of process inks.
