The toner for developing a latent electrostatic image to form an image
contains a binder resin and 2% by weight to 15% by weight of a coloring
agent. The coverage of the toner with the coloring agent on a surface of
the toner is 1.5% by atom to 15% by atom. The toner prevents scatterings
and toner deposition on the background of images and provides high
quality images even after printing several tens of sheets at high
temperature and in high humidity.