| 摘要 |
A toner is provided having binder resin and colorant, wherein the toner satisfies the following relationship T<-0.05epsilon+0.032 wherein epsilon represents a void ratio of a bulk toner formed by consolidating the toner with a load of 500 to 3000 N/m<SUP>2</SUP>, and T represents a torque (Nm) needed for intruding a cone rotor having a vertical angle of 60°, an edge length of 30 mm, and ditches which gradually deepen from vertex to base, into the bulk toner at a speed of 5 mm/min while rotating the cone rotor, wherein the torque is measured when the cone rotor is intruded into the bulk toner at a length of 20 mm; and a toner container, a toner feeding device and an image forming apparatus including the toner.
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