| 摘要 |
<p>The invention provides a developer supply device, a developer container, a developer and an image forming apparatus such that the developer is discharged stably from the developer container with a stable toner concentration in the developer, without damaging the developer, and in a relatively simple and small-size device having a relatively high degree of freedom as regards layout. The developer supply device comprises a partially or wholly deformable developer container and a pump for suctioning the developer held in the developer container, together with a gas, and for discharging the developer towards a developing unit. The toner comprises an additive formed so as to have a volume average particle size of 50 to 500 nm. The carrier is formed so as to have a weight average particle size of 20 to 60 µm. The developer is formed so that the carrier concentration thereof is 1 to 30wt%.</p> |
