The present invention relates to a magnetic mono-component toner
composition with positive charge comprising i) a magnetic toner particle
containing a charge control agent with positive charge; ii) a hydrophobic
silica with negative charge; iii) a fluorinated organic fine powder; and
iv) a metal oxide fine powder containing 20 to 80 wt % of tin oxide. The
toner has an advantageous in the extended life of the drum, reduction of
the background contamination, and improvement of long-term reliability,
and thus can be used effectively for image forming apparatus.