| 摘要 |
A developing device includes: a container, a stirring member, a developing roller, a toner concentration detection section, a stirring plate, and a blade. The stirring plate is attached to the rotary shaft of the stirring member in a manner such as to be rotatable together with the rotary shaft, and has a tip part located in the radial direction at a predefined distance from the detection surface. The blade has elasticity, is attached to the stirring plate in a manner such as to surround a one-side surface, an another-side surface, and the tip part in a rotation direction of the stirring plate, has a sufficient length in the radial direction enough to abut the detection surface, and makes sliding-contact with the detection surface while rotating together with the stirring plate. |
