Patent ID: 7820351

Claim:
A non-magnetic toner comprising: a binder resin; and a colorant, wherein the particle size D 10V where a cumulative volume from the large particle size side in the cumulative volume distribution reaches 10%, and the particle size D 90V where a cumulative volume from the large particle size side in the cumulative volume distribution reaches 90% satisfy the following formula (1), the particle size D 50V where a cumulative volume from the large particle size side in the cumulative volume distribution reaches 50% falls within a range of from 5.1 to 7.8 μm (5.1 μm or more and 7.8 μm or less), and a content of the toner particles having a particle size of at most 5 μm is from 15 to 35% by number (15% by number or more and 35% by number or less), and the particle size D 50V and the particle size D 90V satisfy the following formula (2): 0.415≦( D 10V −D 90V )/ D 10V ≦0.475 (1) 0.160<( D 50V −D 90V )/ D 50V <0.255 (2).