A color toner which gives a suitable image gloss and has an excellent color reproducibility,
which has sufficient anti-offset properties even when a release oil is not coated
on a fixing roller or is coated in only a small amount, and which has excellent
transfer properties, durability, and charge stability relative to humidity is disclosed.
Also, an image-forming apparatus using the color toner and a toner container filled
with the color toner are disclosed. The color toner comprises a continuous phase
of a resin containing a urea-modified polyester resin; and a modified resin dispersed
in the continuous phase, wherein the modified resin contains a release polymer
portion containing a release polymer; and a modified portion containing a plurality
of vinyl monomer units, the modified portion having an average ester group concentration
of 8% by weight to 30% by weight.