| 摘要 |
PROBLEM TO BE SOLVED: To obtain a toner cartridge where stability of image density and precision in toner detection can be improved by carrying out stable replenishing to the developing device even when a ratio between a number of rotation and a number of revolution in a reverse direction is varied, a developing device and an image forming device utilizing the cartridge. SOLUTION: In the toner cartridge provided with a screw bottle 70 that can be rotated in a state where it is attached to a revolving position of the developing device and a toner replenishing opening 71b to replenish the toner to the before mentioned developing device on one edge side in a direction of a rotating shaft of the screw bottle 70, a spiral state projection 70b carrying the toner inside the screw bottle 70 to the side of the toner replenishing opening 71b by the rotation of the screw bottle 70 is formed integrally to the screw bottle 70, the spiral state projection is formed so that carried quantity of the toner inside the screw bottle 70 due to one revolution of the screw bottle 70 in a direction nearing the toner, replenishing opening 71b is greater than the carried quantity of the before mentioned developer in a direction moving further away from the toner replenishing opening 71b due to one revolution of the screw bottle 70. |
