Patent ID: 6183926
Filing Date: 2001-02-06
Classification: G03G

Abstract:
A toner comprising toner particles which comprise a binder resin and a coloring agent, whereinsaid toner particles have a weight-average particle size in a range of 6.0 to 11.5 .mu.m, and comprise:toner particles (a) with a particle diameter of 5 .mu.m or less in a content ratio of 1 to 15% by number, andtoner particles (b) with a particle diameter of twice or more said weight-average particle size in a content ratio of 5 wt % or less, andsatisfy the conditions that:a number-average particle size D25 when the cumulative number of said toner particles reaches 25% at the measurement of a cumulative toner particle distribution by number thereof, and a number-average particle size D75 when the cumulative number of said toner particles reaches 75% at the measurement of said cumulative toner particle distribution by number thereof are in the relationship of:0.60.ltoreq.D25/D75.ltoreq.0.85.