Patent ID: 9304442
Filing Date: 2016-04-05
CPC Classification: G03G

Claim Text:
1. A developing device comprising: a case containing a developer inside; an agitating member being rotated in the case to agitate the developer while conveying the developer in a rotation axis direction; a moving mechanism reciprocating the agitating member in the rotation axis direction in accordance with the rotation of the agitating member; and a detecting device detecting a developer amount contained in the case; wherein the moving mechanism includes: a biasing member arranged at one side in the rotation axis direction of the agitating member so as to bias the agitating member to another side in the rotation axis direction; and a displacing member arranged at the other side in the rotation axis direction of the agitating member so as to displace the agitating member in the rotation axis direction in accordance with the rotation of the agitating member, the displacing member has: a fixing shaft protruded from the case to the one side in the rotation axis direction; and a fitting part arranged in an end part at the other side in the rotation axis direction of the agitating member, the fitting part has a contact face coming into slide contact with a distal end face of the fixing shaft and is rotatably supported by the fixing shaft in a condition of making the contact face come into contact with the distal end face, the contact face and distal end face is formed so as to be inclined.